004. radio structure.pdf

FlexiPacket MultiRadio Structure

FT48926EN03GLA0

© 2012 Nokia Siemens Networks 1

Content

1 FlexiPacket MultiRadio description 3

1.1 FlexiPacket MultiRadio Block Diagram 3

2 FlexiPacket MultiRadio Mechanical Structure and Radio Flanges 9

2.1 FPMR Mechanical Structure and Radio Flanges 10

2.2 FlexiPacket MultiRadio Antenna Interface 13

2.3 FlexiPacket MultiRadio External Connections 15

3 Alternative Connections to an Indoor Device 19

3.1 Introduction 19



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2 FlexiPacket MultiRadio Mechanical Structure and Radio Flanges


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2.1 FPMR Mechanical Structure and Radio Flanges

Fig. 4 and Fig. 5 show the FlexiPacket MultiRadio and Fig. 6 the FlexiPacket MultiRadio flanges.

Fig. 4 FlexiPacket MultiRadio (6-38GHz)


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© Nokia Siemens Networks

Fig. 5 FlexiPacket MultiRadio Radio (3.5GHz)


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2.3 FlexiPacket MultiRadio External Connections

FlexiPacket Radio is provided with five connectors (Fig. 8):

Ethernet Connector

Power Supply Connector

AGC Connector

ODU-ODU connector

Grounding Point

Fig. 8 FlexiPacket MultiRadio External Connections


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Ethernet connector

The Ethernet connector is used to connect an Indoor Device and the FlexiPacket MultiRadio.

The Ethernet connector supports the Power + Ethernet (P+E): its function is of carrying both power and data over the same cable.

The data interface is a 10/100/1000Base-T (GbE), while power interface is based on enhanced “Power+Ethernet”.

The Ethernet connector is a shielded Amphenol multi-polar connector with 8 golden power pins. Each pin can accept at least 22 to 24 AWG wire diameter.

The Ethernet cable is a double shielded four twisted pairs Cat 5e cable. A 24-valued AWG (min.) is necessary to minimize cable power loss. Cable materials are designed to meet outdoor conditions. The cable shield shall be connected to the FlexiPacket MultiRadio grounding point.

PS connector

This connector is used to power supply the FlexiPacket MultiRadio with a dedicated power supply (-48 Vdc + 20%) cable. In this case the interconnection with an Indoor Device is implemented with 2 cables.

The PS connector is a shielded Amphenol multipolar connector with 2 golden power pins. Each pin can accept at least 13 AWG wire diameter.

The PS cable is a shielded, two wire cable. A 13-valued AWG (min.) is necessary to minimize cable power loss; with this value 200m connection is guaranteed over the temperature range -40° to +60°C. Cable materials shall be designed to meet outdoor conditions.

The cable shield must be connected to the FlexiPacket MultiRadio grounding point.


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AGC connector (RSSI)

The RSSI interface allows measuring the received RF signal level with a standard voltmeter through a female BNC 50 ohm, IP65 waterproof connector.

The table below reports the RSSI parameters.

Fig. 9 RSSI parameters

ODU-ODU connector

This connector must be used to connect the ODU-ODU cable to the second FlexiPacket MultiRadio in the configurations with two FlexiPacket MultiRadios.

The connector is a proprietary multicoaxial connector.

WARNING Detailed information about Connectors is reported on the Installation and Commissioning manual FT4889

.


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3.1.1 Alternative (a)

The connection distance is shorter than 100m (Ethernet standard upper limit) and the Generic Indoor Device has its own P+E interface. The Power Supply Unit (PSU) provides the power directly to the Generic Indoor Device. The latter converts it into an appropriate DC voltage, which will be delivered over the Ethernet cable together with GbE data interface according to P+E specifications.

Generic IDU

PSU

P+E ≤ 100 mt

FlexiPacket

ODU

PS

Fig. 10 Alternative (a)


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ODU – Indoor Cabling Scenario

Alternative a

-48V DC

DC Power

Distribution

Switch or

other Device

with Eth I/O

Eth and P+E

Fig. 11 Alternative (a)


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3.1.2 Alternative (b)

Connection distance is shorter than 100m (Ethernet standard upper limit) and the Generic Indoor Device has not its own P+E interface.

Generic IDU

PSU

≤ 100 mt

FlexiPacket

ODUPS

PS

GbE

Fig. 12 Alternative (b)


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ODU – Indoor Cabling Scenario

Alternative b

Eth -48V DC

DC Power

Distribution

Switch or

other Device

with Eth I/O

Fig. 13 Alternative (b)


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3.1.3 Alternative (c)

Connection distance is shorter than 100m (Ethernet standard upper limit) and the Generic Indoor Device has not its own P+E interface.

If the single cable between the Generic Indoor Device and the FlexiPacket ODU is a must, a Power injector device is used to insert power onto an Ethernet cable (see Fig. 15).

FlexiPacket ODU catalogue foresees 2 Power Injector items:

4 ports Power Injector for indoor application (Fig. 16)

1 port Power Injector for outdoor application (Fig. 17)

Generic IDU

PSU

P+E ≤ 100 mt

FlexiPacket

ODU

Power

Injector

GbE

PS

PS

Fig. 14 Alternative (c)

WARNING The following IDUs do not support the P+E:

FlexiPacket Hub 2200 and

FlexiPacket Hub1200

Flexi BTS Transport Cards FTIB, FTLB, FTFB, AXCF

FlexiPacket FirstMile 200 has two Ethernet ports with embedded power (P+E) to FlexiPacket ODU.


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Fig. 15 Power Injector reference network

Four in/out Ports (IDU Cable/ODU Cable) 5 Dry Contacts:

4 Data port short Circuit Alarm

1 Short Circuit Combination

Alarm

Redundant

DC Input

Power injector indoor supporting up to 4 ODUs

Fig. 16 Power Injector (Indoor 4 ports)


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Outdoor Power Injector

• Monolithic outdoor architecture IP55

• Environment compliant to ETSI Class 4.1

extended range (-40°C ÷ +55°C)

• 3 ports: DC input, 10/100/1000BaseT on RJ45

interface, 10/100/1000 BaseT + direct -48VDC

outputs on RJ45 interface

• DC input -48VDC ± 20%

• Power output >60 W

• Sourge protection on output port (5kV)

• MTBF >400 Kh (theoretical, 25°C, maximum

load)

• Power injector for outdoor installation supporting one FP ODU

Fig. 17 Outdoor Power Injector


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Fig. 18

Example of site (zero footprint)

FlexiPacket Radio and power injector

Transport

sub-modulea

Power

Supplyi

AB

b

Outdoor

Power

Injector

d

jD -48Vdc

System Module

FlexiPacket ODU

FlexiWCDMA

Power

module

RF module

RF module

Length <100m

Ethernet Ethernet and 48V

Fig. 19 Zero footprint


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The Indoor Power Injector has a standard RJ45 connector on the front panel for Alarms reporting (Fig. 20.


Fig. 20 ALMs connector front view

Refer to Fig. 21 for the relevant pinout map.


Fig. 21 ALMs connector pin function

Alarms are reported according to the following rule:

Normal state (no alarm): relevant pair of pins (i.e. pin1-pin2 for short circuit on ODU1 power supply) are open and both floating respect to ground

Alarm active: relevant pair of pins (i.e. pin1-pin2 for short circuit on ODU1 power supply) are shortened each other by internal MOS device; both pins are floating respect to ground

All alarm lines support both positive and negative external bias

Wired OR of multiple alarms can be easily done.


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3.1.4 Alternative (d)

Connection distance is longer than 100m.

In this case a Repeater device is used to extend the Ethernet standard limit up to 200m.

The repeater device also forwards the Power Supply.

Generic IDU

PSU

GbE ≤ 100 mt

FlexiPacket

ODU

Repeater

GbE

PS

GbE ≤ 100 mt

PS

PS

GbE

Fig. 22 Alternative (d)


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3.1.5 Alternative (e)

Connection distance is longer than 200m.

In this scenario two repeaters are used to cover distances between the Generic Indoor Device and the FlexiPacket ODU of up to 300m.

Generic IDU

PSU

GbE ≤ 100 mt

FlexiPacket

ODU

Repeater

GbE

PS

GbE ≤ 100 mt

PS

PS

GbERepeater

Gb

E

PS

Gb

E≤

10

0 m

t

Fig. 23 Alternative (e)


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Eth-LAN vs

Indoor device

(i.e. Switch)

Eth

DC PSU Cable vs Power

distribution and PSU DC

Voltage source

-48V DC

Eth

Repeater

-48V DC

Eth

In/Out DC Cables

In/Out EthCables

Repeater - Outdoor

Max 100 mt

Possibility to use up to 2 Lan Repeater for total

length close to 300 mt

Max 100 mt

Fig. 24 Alternative (d) and (e)


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3.1.5.1 Repeater

The Repeater is a device capable of extending the Ethernet connection length over the standard limit.

This is necessary when the distance between the Indoor Device and the FlexiPacket ODU is longer than 100m.

It is designed for outdoor environment.

The device manages a single Indoor Device-FlexiPacket ODU connection: in protected configurations, two repeaters are needed to handle two Indoor- Outdoor links (i.e., one repeater for each FlexiPacket ODU).


Fig. 25 Ethernet Repeater

004. radio structure.pdf

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