repetition h1 tele 2010 - mars.merhot.dk · dmt tone index frequency psd dmt tone index frequency...

21012010 Titel | Sekundaeligr titel

Repetition H1 Tele 2010


Principdiagram

Abonnent

Abonnent

Abonnent

Digital

Central

Analog til

Digital

Analog til

Digital

Analog til

Digital

Telefon Central

Abonnent

Abonnent

Abonnent

Digital

Central

Analog til

Digital

Analog til

Digital

Analog til

Digital

Telefon Central

Trunk


ISDN BRA


ISDN BRA

bull 2 stk B-kanaler af 64 Kbs 1 Stk D-kanal af 16 Kbs


ISDN PRA 2 Mbs = 30 tale-kanaler + 2 signalering af 64 Kbs


Effekt

10 logp2

p1


Spaelignding

20 logU2

U1


Eksempler

bull Effekt

ndash Fordobling af effekten 10log(2)= 3 dB

ndash Firedobling af effekten 10log(4)= 6 dB

ndash 100dobling af effekten 10log(100)= 20dB

bull Spaelignding

ndash Fordobling af spaeligndingen 20log(2)= 6 dB

ndash Firedobling af spaeligndingen 20log(4)= 12 dB

ndash 100dobling af spaeligndingen 20log(100)= 40 dB


Relative dBm

bull dBm Relativ til 1mW ved 50 Ohm

bull dBm ved 600 Ω medfoslashre at dBm(600Ω)

20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV

bull dBmicroV Relativ til 1microV

20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream

200 - 800 kbits TelephonyISDN

PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet


ADSL and DMT (Discrete Multi Tone)

bull Worldwide standard line code for ADSL

bull Wideband variable spectrum signal

bull Bit swapping helps to adapt to loop

problems

bull Maintains BER lt10-7

bull Many ways of carrying IP over ATM

0 25 138 1 100

Upstream kHz Downstream

Bits

tone

bull 256 Carrier tones (512 for ADSL2+)

bull Each tone carries a QAM signal

bull 43125 kHztone

bull 4096 baudtone

bull Up to 15 bitsBaud (bitstone)

bull 0 to 61440 bitssecondtone


Signal to Noise Ratio (SNR) and DMT

Received Noise Power

Received Signal Power

Transmitted Signal Power

Frequency 11 MHz 40 kHz

Signal to Noise Ratio (SNR)

Bits per tone

15

0


ADSL over POTS vs ADSL over ISDN

ITU-T G9921 Annex A vs Annex B

ITU-T G9921 Annex B AoISDN Non-overlapped spectrum (FDM)

US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency

ITU-T G9921 Annex A AoPOTS Non-overlapped spectrum (FDM)

1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM

The ADSL2 and ADSL2+ standards improve on the original ADSL

by offering higher downstream data rates and longer reach

Home Office

with ADSL2+

ADSL2 provides downstream data

rates of more than 12 Mbits while

extending ADSLrsquos reach about 200m

ADSL2+ provides downstream data rates of

25 Mbits for loops up to 15 km long by

doubling the bandwidth used to carry traffic

(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz

Upstream Downstream POTS

ISDN

hellip

Dedicated

64 kbits

PCM channel


ADSL2+ Doubles the Downstream Bandwidth

MHz


ISDN

014 11 22

ADSL2

ADSL2+


QAM Quadrature amplitude modulation

0010

0011

0110

1010

Resultat0010 0011 0110 1010


ADSL2 ADSL2+ and RE-ADSL2 vs ADSL rate and reach improvement

Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km


Copper wire characteristics

Capacitance 30 to 60 nF

Resistance 100 ohms

Inductance 05 to 1 mH

Conductance gt 5M ohms

Twisted Pair Lines

Typical values per km

R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH

bull 2 Mbs = ISDN 30

ndash 32 stk 64 Kbs

ndash 30 Tale kanaler

bull 8Mbs = 42 Mbs

bull 3445 Mbs = 4 8 Mbs



SDH

bull Multiplex levels

bull Tributaeligr interfaces

bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH

bull The basis of Synchronous Digital Hierarchy (SDH) is

bull synchronous multiplexing - data from multiple tributary

bull sources is byte interleaved

bull In SDH the multiplexed channels are in fixed locations

bull relative to the framing byte

bull Demultiplexing is achieved by gating out the required

bull bytes from the digital stream

bull This allows a single channel to be lsquodroppedrsquo from the data

bull stream without demultiplexing intermediate rates as is

bull required in PDH


SDH

bull SDH is a transport hierarchy based on multiples of 15552

bull Mbits

bull The basic unit of SDH is STM-1

bull STM-1 = 15552 Mbits




bull Each rate is an exact multiple of the lower rate therefore

bull the hierarchy is synchronous


SDH



PSTN Trunks mellem centraler

PSTN Reserveret baringndbredde End-To-End

Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet

TerminalTerminalGate Keeper

MCU

Router

Router

TerminalTerminal

Voice

Gateway

H323 enheder Terminal

H323 Terminal

IP Telefoner Enten hardware

baseret eller software baseret

H323 enheder Gatekeeper

H323 Gatekeeper

Styrer alle terminaler i en

zone (I virksomheden)

H323 enheder Gateway

H323 Gateway

Etablerer kontakt mellem

telefonnettet og IP-telefoni

systemet

H323 enheder Multi-point Control Unit

H323 MCU

Anvendes til at rdquoblanderdquo lyden ved

konferencer

Er ofte integreret i Gate Keeper eller

gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway

Gatekeeper etablerer kontakt mellem terminaler

Intern Samtale

Samtale stroslashmmen sendes

direkte fra Terminal til

Terminal


Central

PBX

- Centralliste

Centralens krydsfelt bestaringr af

- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler

Parfordeler ellerlokalkrydsfelt


Kvalitetsparametre

Parametre Min krav Bemaeligrkninger

Spaelignding AC A ndash J B ndash J A ndash B

lt 08 V lt 08 V lt 08 v

Traringdparret maringles aringbenisoleret i fjernende

Spaelignding DC A ndash J

B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm


BEMAEligRK Det er et TDC maringl rsquoloslashbendersquo at

opgradere accesnettet til en maringlevaeligrdien paring 10 M ohm Et maringl som pt ikke alle

driftsvaeligrende traringdpar kan forventes at leve op til


Sloslashjfemodstand A ndash B

1400 ohm

Traringdparret sloslashjfes i fjernende

DC Balance A ndash J B ndash J

2

Maringledata gaeliglder ved manuel maringling Tilladt afvigelse mellem maringlevaeligrdien A ndash J og B ndash J

Kapacitiv balance

A ndash J

B ndash J

5

Maringledata gaeliglder ved manuel maringling

Tilladt afvigelse mellem maringlevaeligrdierne

A ndash J og B ndash J

Se ogsaring afsnit 3 LTS maringlinger

Daeligmpning A ndash B

9 dB

Maringles med en frekvens paring 1020 Hz Impedans 600 ohm

Gruppeloslashbetidsforvr

aeligngning

lt 06 ms Variation ved 100 Hz i forhold til 15 kHz

Stoslashj A - B -60 dBmp Maringles med et Psofometrisk filter Afsluttes i fjernenden med 600 ohm

(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning

60 dB Maringles med en frekvens paring 1020 Hz

Sendeniveau 0 dBm Maringles i forhold til eacutet eller flere traringdpar i samme kabel

Traringdparrene skal maringles med aringbne isoleret fjernende

Jord- signalbalance

gt 60 dB

Laeligs om teorien - bag maringlingen - i dok102-05-01 punkt 310

BEMAEligRK DC- og kapacitiv balance

maringlinger kan ndash til en vis grad - erstattes af en Jord-signalbalance maringling og omvendt


Principdiagram

Abonnent

Abonnent

Abonnent

Digital

Central

Analog til

Digital

Analog til

Digital

Analog til

Digital

Telefon Central

Abonnent

Abonnent

Abonnent

Digital

Central

Analog til

Digital

Analog til

Digital

Analog til

Digital

Telefon Central

Trunk


ISDN BRA


ISDN BRA





Effekt

10 logp2

p1


Spaelignding

20 logU2

U1


Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





ISDN BRA


ISDN BRA





Effekt

10 logp2

p1


Spaelignding

20 logU2

U1


Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





ISDN BRA





Effekt

10 logp2

p1


Spaelignding

20 logU2

U1


Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB







Effekt

10 logp2

p1


Spaelignding

20 logU2

U1


Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Spaelignding

20 logU2

U1


Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Eksempler

bull Effekt




bull Spaelignding





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Relative dBm



20 logU2

0775

P R

0001600 0775

000150 0224

V1 ved 600 Ohm

V1 ved 50 Ohm


Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Relative dBmicroV


20 logU2

106

dBmicroV=


ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





ADSL in the Network

Customer

Premises

Central

Office

Splitter

Filter

ADSL modem

(ATU-R)

Copper

Line

DSLAM (ATU-C)

Splitter

Filter

ATM IP

Network PC

USB

LAN

HubRouter

IP

Video

Ethernet

10100

Corporate

Remote

Access

Server Downstream

2 - 8 Mbits

Upstream


PSTN ISDN

Network

POTSISDN

ATM

or

GigE

Service Provider 2

eg Video on Demand

Service Provider 1

eg Internet






problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB









problems



0 25 138 1 100


Bits

tone



bull 43125 kHztone

bull 4096 baudtone










Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB











Bits per tone

15

0





US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB








US 138kHz

DS 823kHz

1 6 32 64 256

138 280 1 104

80 120

PSD

ISDN 2B1Q

4B3T

DMT Tone Index

Frequency

PSD

DMT Tone Index

Frequency


1 6 32 256

138 1 104

25875

US 112kHz

DS 961kHz POTS


ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





ADSL2 and ADSL2+

Central

Office

ADSL2

DSLAM



Home Office

with ADSL2+







(up to 22 MHz)

Home Office

with ADSL2


CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





CVoDSL

kHz


ISDN

hellip

Dedicated

64 kbits

PCM channel



MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB






MHz


ISDN

014 11 22

ADSL2

ADSL2+



0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB






0010

0011

0110

1010

Resultat0010 0011 0110 1010



Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB






Loop length (km)

Da

ta r

ate

(M

bit

s)

8

ADSL2+

60

ADSL

ADSL2

ADSL2+

RE-ADSL2 (Annex L)

ADSL2

ADSL

RE-ADSL2

11

24

10 20 30 40 50

42km

24km

30km




Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB







Resistance 100 ohms



Twisted Pair Lines


R x

C x

L x

G x

x


60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





60

60

60

60

Transmission line

INPUT OUTPUT

Noise induced onto

the line

Noise

cancels out

Balanced line

PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




PDH


ndash 32 stk 64 Kbs


bull 8Mbs = 42 Mbs




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




SDH



bull 1048707 2048 Mbits

bull 1048707 8448 Mbits

bull 1048707 34368 Mbits

bull 1048707 139264 Mbits


SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




SDH












SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




SDH


bull Mbits









SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




SDH





Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB







Central

Roslashdding

Central

Resenbro

Trunk

Trunk

Tru

nk

Trunk Trunk

Tru

nk

Central

Viborg

Central

Skive Central

Randers

Central

Silkeborg


H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





H323 enheder

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





H323 Terminal




H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





H323 Gatekeeper




H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





H323 Gateway



systemet


H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





H323 MCU


konferencer


gateway

PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




PSTN

Telenet

Internet


MCU

Router

Router

TerminalTerminal

Voice

Gateway


Intern Samtale



Terminal


Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Central

PBX

- Centralliste


- Krydstraringd

- Primaeligrliste

Nedgravet kabel

Primaeligrfordeler

Soslashjlefordeler



Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB





Kvalitetsparametre



lt 08 V lt 08 V lt 08 v



B ndash J A ndash B

2 V

2 V

2 V


Isolation A ndash J

B ndash J A ndash B

gt 1 Mohm

gt 1 Mohm gt 1 Mohm







1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB






1400 ohm



2


Kapacitiv balance

A ndash J

B ndash J

5






9 dB



aeligngning



(-60 dBmp = 0775 mV)

Naeligrkrydstale

daeligmpning




Jord- signalbalance

gt 60 dB




repetition h1 tele 2010 - mars.merhot.dk · dmt tone index frequency psd dmt tone index frequency...

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