against ir of - tec on cordless phone 18th oct 2013...against ir of cordless telephones gr...

Telecommunication Engineering Centre

(Provisional)

Test Schedule & Test Procedure (TSTP)

No. TEC/TSTP/IR/CP/TCL-001/04/SEP-12

against IR of

CORDLESS TELEPHONES

IR No.TEC/IR/CP/TCL-001/04/SEP-12

© TEC

TELECOMMUNICATION ENGINEERING CENTRE KHURSHID LAL BHAVAN, JANPATH

NEW DELHI - 110001 INDIA

All Rights Reserved and no part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise without written permission from the Telecommunication Engineering Centre, New Delhi.

TEC/TSTP/IR/CP/TCL-001/04/SEP 2012

Department of Telecommunications, Telecommunication Engineering Centre

Khurshid Lal Bhawan, Janpath, New Delhi - 110001

History Sheet

Test Schedule & Test Procedure (TSTP) of

No. TEC/TSTP/IR/CP/TCL-001/04/SEP-12

Against IR of

CORDLESS TELEPHONES

GR No.TEC/IR/CP/TCL-001/04/SEP-12

Sr. No

Name of the IR Issued on Remarks

1. Cordless Telephone

APR.2002 First Issue


APR.2008 Second Issue


SEP.2012 Revised Issue


2

Department of Telecommunications, Telecommunication Engineering Centre

Khurshid Lal Bhawan, Janpath, New Delhi – 110001 TEC/TSTP / IR /CP / TCL-001 / 04 / SEP-12 1.0 Scope

This document illustrates the Test Schedule and Test procedure to check the compliance of Cordless Telephones to TEC Specification No: TEC/IR/TCL/001/04/SEP –12.

These cordless phones are intended for in-building or localized on-site operations, providing communications within subscriber /end user premises. Cordless Telephone is a low power wireless terminal equipment for indoor usages with mobility of use confined to subscriber premises only.

Sl.No Description

2.0 Functional Requirements

2.1 2.1.1

Facilities Test setup & Test Procedure Check that the cordless telephone have the following facilities:

i. Two way intercom, paging and call transfer from base unit to handset.

ii. Continuous health status of the battery in the handset. iii. In-use indication and power indication. iv. Battery charging indication. v. Tone/Pulse selection either by keypad or a switch.

vi. Last number redial. Observation:

Remarks, if any


3

Sl.No Description 2.1.2 Test setup & Test Procedure

Check that the cordless telephone have additional built-in features like the following:

i. Memory dialing ii. Speaker Phone (making calls from base unit) iii. Back-up Battery in the Base Unit (to enable the remote unit to

operate during power failure) iv. Caller ID with DTMF/FSK compatible v. Receiver Volume Control vi. Flash vii. Pause viii. Mute ix. Hearing Aid Compatible x. Out of Range Indication. xi. Desktop and Wall mountable

Observation:

Remarks, if any

2.1.3

Test Setup & Test Procedure Check that the Cordless Phone consists of: -

a) A fixed base station (Base Unit), connected to a PSTN Line b) A portable set (Handset).

Observation:

Remarks, if any


4

Sl.No Description

2.2 2.2.1

Design requirements Test Setup & Test Procedure

The Frequency, Power and Range of the Base and Remote Station

Check for the following mentioned Design Requirements items: The following frequency, power and range have been specified by the Wireless Planning Cell of the Ministry of Communications for the use of Cordless Telephones in India. A. Base Units Only Frequencies Power Remarks 1610 }

1640 } KHz 1675 } 1690 }

500 mW Maximum range 100 meters

B Base Units/Remote Units 26.375 }

26.475 } 26.575 } 26.625 } 46.675 }MHz 46.725 } 46.775 } 46.825 } 46.830 } 49.845 } 49.860 } 49.875 }

500 mW/For base Stations 200 mW for Remote Station.

On non-interference and non-protection basis.

C Remote Units Only 150.350 }

150.750 } MHz 150.850 } 150.950 }

50 mW On non-interference and non-protection basis.

---- For A,B,C above refer clause No.6.1 [1].


5

Sl.No Description

--- For D above refer Clause No.6.1 [2] & [3]----

D Channel No. BaseStation Transmit (MHz) Handset Transmit (MHz) 1 46.610 49.670 2 46.630 49.845 3 46.670 49.860 4 46.710 49.770 5 46.730 49.875 6 46.770 49.830 7 46.830 49.890 8 46.870 49.930 9 46.930 49.990 10 46.970 49.970 11 43.720 48.760 12 43.740 48.840 13 43.820 48.860 14 43.840 48.920 15 43.920 49.020 16 43.960 49.080 17 44.120 49.100 18 44.160 49.160 19 44.180 49.200 20 44.200 49.240 21 44.320 49.280 22 44.360 49.360 23 44.400 49.400 24 44.460 49.460 25 44.480 49.500 RF Power 500 mW 100 mW Typeof Emission

16 KO F 3 E


6

Sl.No Description 2.2.1 E As per IND52 of National Frequency Allocation Table (NFAP – 2011,

Wireless Planning & Coordination Wing of Department of Telecommunications) certain frequency spots in the frequency band 926 – 926.5 MHz may be considered for very low power cordless telephone systems. The use of this band for such purpose is on the basis of non-interference, non-protection and non-exclusiveness.

F In case of the cordless telephone operating in the frequency band 2.4 GHz

to 2.4835 GHz, it shall comply with the requirements laid down in the clause Nos. 1.0, 2.2, 2.3.1.2, 2.3.2.2, 2.3.3, 2.3.4, 2.3.5 and 3.0 of the standard No. SD/RAD-01/01.SEP 2005.” of TEC. The details of clause available as Annexure-I.

G. The Cordless Phone shall work in the following band as per IND 67 of NFAP

2011. - Use of low power equipments for wireless access systems in the frequency band 5.150-5.350 GHz and 5.725 – 5.875 GHz using a maximum mean Effective Isotropic Radiated Power of 200 mW and a maximum mean Effective Isotropic Radiated Power density of 10mW/MHz in any 1 MHz bandwidth, for the indoor applications (exempted from licensing requirement. As per GSR No 46E dated 28.1.2005)

2.3 Check that the maximum height of the antenna is limited to one meter.

2.4 Check that the maximum frequency deviation is within + 5.0 KHz.

Observation:

Remarks, if any

2.5 Security Codes Test Setup & Test Procedure Check for the following mentioned security codes:

2.5.1 The base and mobile units should have suitable security codes so as to minimize its unauthorized operation by other devices in the neighborhood.


7

Sl.No Description 2.5.2

The security/ authentication codes should not be less than 64K. Each time the remote unit is placed on the base unit, the code shall automatically change in random order

Observation:

Remarks, if any

3.0 3.1 3.1.1

Technical Requirements Transmission Performance Test Setup & Test Procedure For transmission performance requirements the limiting subscriber's line is defined as minimum 1000 ohms loop of 0.5 mm cable the characteristics of which are (i) 170 ohms/Km. (average) resistance and 0.0475 mF/Km. (max.) capacitance 0.4 mm cable which has 280 ohms/Km (average) resistance and 0.04 mF (max.) capacitance is also used in conjunction with 0.5 mm cable. The limiting line excludes the resistance offered by the telephone and the exchange equipment.

Observation:

Remarks, if any


8

Sl.No Description

3.1.2 The types of transmission bridges obtained in the Network are:

Sl. No

Type of Exchange

Feed Bridge Feed-Voltage Ranges

Max. Permissible current at exchange end

1. 2. 3. 4. 5. 6. 7. 8. 9.

E-10B OCB 283 SIEMENS ERICSSON FETEX-150 5 ESS C-DOT NEAX 61 E Soft Switch

(400+400)ohms with(2.2+2.2) F (200+200) ohms ( 400+400) ohms (EWSD) (300+300)ohms (AXE-10) (300+300)ohms ( 400+400)ohms (300+300)ohms (200+200)ohms

54 -40 to -57 V -Do- -Do- -Do- -Do- -Do- -42 to -58 V

60mA 40mA. 48mA 60mA 60mA 48mA 60mA 76 Ma

Test Setup & Test Procedure This Clause is informative. No test is required.

3.1.3 Test Setup & Test Procedure The Cordless Telephone should have an automatic line current limiting feature such that it does not allow the maximum permissible current to exceed 60 mA.

Observation:

Remarks, if any


9

Sl.No Description

3.1.4 Test Setup & Test Procedure Check that the transmitter including Cordless Telephone circuit introduces harmonic distortion greater than 5% in the line current range specified in clause 3.1.2. The total harmonic distortion of the receiver including Cordless Telephone circuit should not be greater than 5% with an applied signal of 0.775V in the frequency range of 300-3400 Hz.

Observation:

Remarks, if any

3.1.5 Test Setup & Test Procedure Check that no unwanted oscillations causing instability is generated by the Cordless Telephone when the handset is held in different possible positions and when higher gains arise due to the presence of low currents during limiting line conditions or when the line is without load impedance.

Observation:

Remarks, if any

3.1.6 Test Setup & Test Procedure The noise level developed across a 600 ohms termination of the Cordless Telephone should not exceed -65 dBmp when measured with a psophometer meeting ITU-T Recommendation No.P.53 (Blue Book 1988)[1] with the transmitter enclosed in a sound proof container and the Cordless Telephone connected directly to feed bridges specified in clause 3.1.2.

Observation:

Remarks, if any

3.1.7 Test Setup & Test Procedure Check that the noise generated in the Cordless Telephone in the receive direction do not exceed -65 dBmp.

Observation:

Remarks, if any

3.1.8 Test Setup & Test Procedure The Acoustic Shock Absorption provided in the Cordless Telephone should conform to the ITU-T Recommendation P-36 (Blue Book 1988) [2].


10

Sl.No Description Observation:

Remarks, if any

3.1.9 Check that It is not be possible to generate a signal exceeding +10 dBV rms across

a 600 ohms termination of the Cordless Telephone for any acoustic signal at the microphone.

Observation:

Remarks, if any

3.2 Network Compatibility

Test Setup & Test Procedure Check the following mentioned items for the compatibility of Network.

3.2.1 In the off-hook condition (both during signaling and speech) the DC resistance of the Cordless Telephone measured across the line terminals should be such that line current requirements specified in clauses 3.1.2 and 3.1.3 are met all line lengths.

Observation: Remarks, if any

3.2.2 The impedance of the Cordless Telephone in the off-hook condition should be

such that the Stability Balance Return Loss of the Cordless Telephone against balance impedance of 600 ohms (resistive) when connected to a subscriber line shall be greater than 12 dB in the range 300 Hz to 3400 Hz.

Observation:

Remarks, if any

3.2.3 Check that this clause is applicable at all lengths up to limiting length indicated in clause 3.1.1.

Observation:

Remarks, if any

3.2.4 Check that the DC Insulation Resistance between any two points not electrically connected is not less than 5 megaohms when tested with a 250V DC megger for a duration of not less than 5 seconds.


11

Sl.No Description Observation: Remarks, if any 3.2.5 Check that the Cordless Telephone shall be insensitive to line polarity.

Observation:

Remarks, if any

3.2.6 Check that the performance of the Cordless Telephone is not unduly affected by

the presence of normally encountered electric and magnetic fields and radio waves.

Observation:

Remarks, if any

3.2.7 Check that during ON-HOOK condition or during signaling when no button is depressed, the total power level of all signals to the line do not exceed -62 dBm and the power level of any single frequency emitted from the Cordless Telephone instrument do not exceed -70 dBm at the Cordless Telephone output

Observation:

Remarks, if any

3.2.8 The subscriber line should have a loop resistance up to or greater than 1000 ohms and an insulation resistance greater than 20 kilo ohms between the limbs and between each limb and earth.

Observation:

Remarks, if any

3.2.9 Check that during the ON-HOOK condition the current drawn by the Cordless Telephone to power the electronic circuit of the keypad is less than 40 mA (nominal)

Observation:

Remarks, if any


12

Sl.No Description

3.3 Loop Disconnect Signaling

Test Setup & Test Procedure Check that the Cordless Telephone is capable of operating satisfactorily under the following conditions for loop disconnect signaling.

3.3.1 The Cordless Telephone should not be able to send more than 10 impulses in anyone digit regardless of the number of push buttons simultaneously pressed.

Observation:

Remarks, if any

3.3.2 Operation of the hook-switch during the pulsing mode for periods of more than 250 ms (with the consequent break on the line) should cause cancellation of any digits stored and should not cause further pulsing of digits.

Observation:

Remarks, if any

3.3.3 When the handset is on the hook, the keypad should be inoperative.

Observation:

Remarks, if any

3.3.4 The Cordless Telephone should provide decadic pulses at 10 IPS nominal with 2:1 break/make ratio. The speed of pulsing should be within ±5% of the nominal. The break period of the pulse should be within the range of 60% to 70%.

Observation:

Remarks, if any

3.3.5 The Cordless Telephone should be capable of accepting the information from the keypad and pulsing out stored digits simultaneously to the line sequentially.

Observation:

Remarks, if any

3.3.6 The nominal inter-digital pause between any two successive digits should be 800 ms. with ±10% tolerance limits.


13

Sl.No Description

Observation:

Remarks, if any

3.4 Dual Tone Multi-Frequency Signaling

Test Setup & Test Procedure Check that the Cordless Telephone is capable of operating satisfactorily in accordance with the following conditions for Dual Tone Multi-Frequency (DTMF) signaling.

3.4.1 Each push button of the keypad shall represent a combination of two signaling

frequencies one frequency from each of the low and high groups of signaling frequencies.

Observation:

Remarks, if any

3.4.2 When one button is depressed with the Cordless Telephone hand set off the hook, Cordless Telephone should transmit simultaneously a combination of two frequencies, as required in 3.4.1.

Observation:

Remarks, if any

3.4.3 Allocation of frequencies, various digits and symbols of the push buttons should be as per Recommendation-Q-23 of ITU-T(Blue Book 1988), reproduced in fig.1.

Observation:

Remarks, if any

3.4.4 Each transmitted signaling frequency must be within + 1.8% of the nominal frequency.

Observation:

Remarks, if any


14

Sl.No Description 3.4.5 During signaling following transmission levels should be satisfied for all line

lengths i.e. starting from 0 up to limiting line. Low frequency group : - 8 dBm + 2 dB High frequency group : - 6 dBm + 2 dB The measurements to be taken with 600 ohms termination.

Observation:

Remarks, if any

3.4.6 During transmission of signaling frequencies , it should be possible to listen to the side-tone composed of the same frequencies as those sent to the line.

Observation:

Remarks, if any

3.4.7 The Cordless Telephone should be able to accept the information from its keypad at the rate of 6 push button depressions per second with only one push button being pressed at any time.

Observation:

Remarks, if any

3.4.8 Level difference between any two frequencies forming a signal should not be more than 2 dB + 1 dB such that the higher frequency component of the signal is of higher level.

Observation:

Remarks, if any

3.4.9 The speech transmission efficiency should be decreased by at least 50 dB under the following conditions:-

a) When a push button is depressed;

b) During transmission of any DTMF signal;

This requirement should be met within 15 ms


15

Sl.No Description

Observation:

Remarks, if any

3.4.10 During DTMF signaling, the DC loop should be maintained.

Observation:

Remarks, if any

3.4.11 In case of DTMF redial, the on/off period should be not less than 40/40 ms

Observation:

Remarks, if any

3.5 3.5.1

Electronic Ringer Test Setup & Test Procedure Check that the electronic ringer generates a pleasant audible signal containing frequency components spread over a wide spectrum when actuated by a ringing current source of 75V +5 V with a frequency in the range 16 Hz to 60 Hz.

Observation:

Remarks, if any

3.5.2

Check that the electronic ringer do not respond to signaling or speech voltages generated by the Cordless Telephone itself when off-hook or when on-hook/stand-by, by any Telephone connected in parallel.

Observation:

Remarks, if any

3.6 3.6.1

Battery Eliminator

Test Setup & Test Procedure

Check that the Battery Eliminator provides a regulated DC Power.

Observation:

Remarks, if any


16

Sl.No Description 3.6.2 The Battery Eliminator should work on AC power supply from 150 V to 260 V and

frequency 50 Hz + 2 Hz.

Observation:

Remarks, if any

3.6.2.1 Check that the battery Eliminator works on AC power supply from 170V to 260V (230V nominal), 50 Hz +/- 2 Hz. The adapter should be of floor type with minimum cord length of 1.5 meters at both ends. The AC plug should have pins as per B.I.S. specifications.

Observation:

Remarks, if any

3.6.2.2 Protection:

Adequate protections should be incorporated to avoid accidental hazards to human life and exchange equipment due to AC leakage. The details of protection provided should be indicated by the manufacturer.

The unit should be tested from accidental short circuit shortly the output terminals on full load with power ‘ON’. After 30 seconds the out put shall regulate with in +/- of the set value.

An adequate protection with a tolerance +/- 1% in case of DC voltage & current and +/-5V in case of AC voltage should be provided.

Observation:

Remarks, if any

3.6.2.3 Safety Requirements:

Check that the Eliminator complies with electrical safety requirements for apparatus to be connected to Telecom Network as per standard laid down in S/SFT-01/01.MAY.94.

Observation:

Remarks, if any


17

Sl.No Description 3.6.3 The noise level at the Battery Eliminator output terminals should be limited to 2 mV

psophometric, when the unit is delivering its full rated output current to a pure resistive load at an input AC voltage from 150 V to 260 V.

Observation:

Remarks, if any

3.6.4 The insulation resistance between any two points of the Battery Eliminator should not be less than 10 MW when tested at 500 V DC under standard atmospheric conditions.

Observation:

Remarks, if any

3.6.5 To avoid accidental short circuit of primary and secondary winding of the transformer, bifurcated spool physically separating primary and secondary windings should be used.

Observation:

Remarks, if any

3.6.6 The insulation resistance of the windings of the transformer with reference to the body when tested with a 500 V DC should not be less than 100 MW at standard ambient conditions.

Observation:

Remarks, if any


18

Sl.No Description

4.0 4.1 4.1.1 4.1.2 4.1.3

Interconnectivity & Interface Test Setup & Test Procedure

Mode of connection

Check that the Base unit is always be connected in parallel to the telephone instrument or any other device which will detect incoming ring under all conditions. The connection of the device to the telephone line and the telephone instrument should be made externally by using standard plug and socket arrangement (RJ11C). Check that the connection also ensures that all routine tests conducted from the telephone exchange viz. Insulation measurement of A and B limb, Click test, Signaling performance etc. of the telephone instrument, is possible with the device connected.

Observation: Remarks, if any

4.2 4.2.1 4.2.2

Line Interface Test Setup & Test Procedure Transmission, signaling and other parameters of the telephone instrument to which cordless telephone is connected in parallel should not deteriorate by use of cordless telephone under following conditions:

i. When the status of the cordless telephone is “On-Charge”, “Stand-by” or “In use”.

ii. Mains power failure condition. No loop should be extended on the telephone line during intercom between base and mobile unit.

5.0 Safety and Security Requirements 5.1 5.1.1

Safety Requirements Test Setup & Test Procedure Check that the equipment complies with safety requirements defined in IEC 60950-1 safety standard

5.1.2

The operating personnel should be protected against shock hazards as per IS 8437 {1993} “Guide on the effects of current passing through the human body” [equivalent to IEC publication 479-1 {1894}].


19

Sl.No Description 5.1.3

The radio modem should conform to IS 13252 (1992) “Safety of information technology equipment including electrical business equipment” {equivalent to IEC Publication 950 (1986)} and IEC 215 {1987} “Safety requirements of radio transmitting equipments” {for Radio Equipments only}.

5.1.4

The Cordless Phone should follow proper construction practice to minimize unintended radiations due to leakage from any gap or monitoring points. All unused if/rf ports and monitoring points should be terminated. The power flux density shall not exceed 1 mW/cm2 at a distance of 2.5 cms.

Observation:

Remarks, if any

6.0

EMI/EMC Requirements

6.1

General Electromagnetic Compatibility (EMC) Requirements:- Test Devices & Test procedure Check that the equipment conforms to the EMC requirements as per the following standards and limits indicated therein. A test certificate and test report should be furnished from a test agency.

Observation:

Remarks, if any

6.1.a)

Test Devices & Test procedure Conducted and radiated emission (applicable to telecom equipment): Check that the equipment complies with the below mentioned CISPR/TEC Standards and limits. Name of EMC Standard: “CISPR 22 (2005) with amendment 1 (2005) and amendment 2 (2006) – Limited and methods of measurement of radio disturbance characteristics of Information Technology Equipment”. Limits:-

i) To comply with Class B of CISPR 22 (2005) with amendment 1 (2005) and amendment 2 (2006). ii) The values of limits shall be as per TEC Standard No. TEC/EMI/TEL-001.


20

Sl.No Description

Observation:

Remarks, if any

6.1.b)

Test Devices & Test procedure Immunity to Electrostatic discharge:

Check that the equipment complies with the following mentioned IEC Standards and limits.

Name of EMC Standard: IEC 61000-4-2 {2001} “Testing and measurement techniques of Electrostatic discharge immunity test”. Limits:-

i) Contact discharge level 2 {+ 4 kV} or higher voltage; ii) Air discharge level 3 {+ 8 kV} or higher voltage;

Observation:

Remarks, if any:

6.1.c)

Test Devices & Test procedure Immunity to radiated RF:

Check that the equipment complies with the below mentioned IEC Standards and limits. Name of EMC Standard: IEC 61000-4-3 (2006) “Testing and measurement techniques – Radiated RF Electromagnetic Field Immunity test”. Limits:- i) Under Test level 2 {Test field strength of 3 V/m} for general purposes in frequency range 80 MHz to 1000 MHz and ii) Under test level 3 (10 V/m) for protection against digital radio telephones and other RF devices in frequency ranges 800 MHz to 960 MHz and 1.4 GHz to 6.0 GHz.

Observation:

Remarks, if any:


21

Sl.No Description 6.1d)

Test Devices & Test procedure Immunity to fast transients (burst): Check that the equipment complies with the above mentioned IEC Standards and limits.

Name of EMC Standard: IEC 61000-4-4 {2004} “Testing and measurement techniques of electrical fast transients / burst immunity test”. Limits:- Test Level 2 i.e. a) 1 kV for AC/DC power lines; b) 0.5 kV for signal / control / data / telecom lines;

Observation: Remarks, if any: 6.1 e)

Test Devices & Test procedure Immunity to surges: Check that the equipment complies with the above mentioned IEC Standards and limits. Name of EMC Standard: IEC 61000-4-5 {2005} “Testing and measurement techniques for Surge immunity test”. Limits: i) For mains power input ports : (a) 1.0 kV peak open circuit voltage for line to ground coupling (b) 0.5 kV peak open circuit voltage for line to line coupling. ii) For telecom ports : (a) 0.5 kV peak open circuit voltage for line to ground (b) 0.5 kV peak open circuit voltage for line to line coupling.

Observation: Remarks, if any:


22

Sl.No Description 6.1.f)

Test Devices & Test procedure Immunity to conducted disturbance induced by Radio frequency fields: Check that the equipment complies with the above mentioned IEC Standards and limits. Name of the EMC Standard:

IEC 61000-4-6 (2003) with amendment 1(2004} &2 (2006) “Testing and measurement techniques-immunity to conducted disturbances induced by radio-frequency fields”.

Limits:

Under the test level 2 {3 V r.m.s} in the frequency range 150 kHz -80 MHz for AC / DC lines and Signal / Control / telecom lines.

Observation: Remarks, if any: 6.1.g)

Test Devices & Test procedure Immunity to voltage dips & short interruptions (applicable to only ac mains power input ports, if any): Name of EMC Standard: IEC 61000-4-11 {2004} “Testing and measurement techniques-voltage dips, short interruptions and voltage variations immunity test”.

Limits:- i) a voltage dips corresponding to a reduction of the supply voltage of 30% for 500ms (i.e. 70% supply voltage for 500 ms) ii) a voltage dips corresponding to a reduction of the supply voltage of 60% for 200ms (i.e. 40% supply voltage for 200 ms) iii) a voltage interruption corresponding to a reduction of supply voltage of > 95% for 5s.

Observation:

Remarks, if any:


23

Sl.No Description

Note 1 : The test agency for EMC tests shall be an accredited agency and details of accreditation shall be submitted. Alternatively EMC test report from a non-accredited test lab, which is audited by an accredited lab / accrediting authority for the availability of all the essential facilities (test equipment, test chamber, calibrations in order, test instructions, skilled personnel etc.), required for performing the tests according to the EMC test methods audited, may be acceptable. However, such accredited lab / accrediting authority should take responsibility of the test results of the “non accredited lab” along with indication of period of such delegation and the submitted test report should be of such valid period of delegation. The audit report, mentioning above facts, should be provided along with EMC test report.

Note 2:- For checking compliance with the above EMC requirements, the method of measurements shall be in accordance with TEC Standard No. TEC/EMI/TEL-001 and the references mentioned therein unless otherwise specified specifically. Alternatively, corresponding relevant Euro Norms of the above IEC/CISPR standards are also acceptable subject to the condition that frequency range and test level are met as per above mentioned sub clauses (a) to (g) and TEC Standard No. TEC/EMI/TEL-001. The details of IEC/CISPR and their corresponding Euro Norms are as follows:

IEC/CISPR Euro Norm

CISPR 11 EN 55011 CISPR 22 EN 55022 IEC 61000-4-2 EN 61000-4-2 IEC 61000-4-3 EN 61000-4-3 IEC 61000-4-4 EN 61000-4-4 IEC 61000-4-5 EN 61000-4-5 IEC 61000-4-6 EN 61000-4-6

IEC 61000-4-11 EN 61000-4-11


24

Sl.No Description

7.0

7.1 7.2 7.3 7.4 7.5 7.6

Quality Requirements

Test Devices & Test procedure Check that the System meets the following quality requirements:-

The equipment should meet the environmental requirements as per category B-2 of QM-333 March 2010 Standard for Environmental Testing of Telecommunication Equipment.

The equipment should be manufactured in accordance with international quality management system ISO 9001:2008 for which the manufacturer should be duly accredited. A quality plan describing the quality assurance system followed by the manufacturer would be required to be submitted.

The plug-in-units, whose removal or insertion endanger the reliability or performance of the radio modem should have suitable protection.

The usage of components in the equipment should comply to the guidelines vide TEC approval procedure. The source of procurement of components is also required to be submitted by the manufacturers.

Marking and identification of the equipment, sub assemblies, PCBs etc. should be as per guidelines given in para 5.1.7 of Quality Assurance Circle document No. QM 301.

The MTBF (Mean Time Between Failure) and MTTR (Mean Time To Restore) predicted and observed values should be furnished along with calculations by the manufacturer. Based on these figures, 3 years maintenance spares should be specified by the equipment supplier. The availability of the equipment should be more than 99.9%.

Observation:

Remarks, if any:


25

Sl.No Description

8.0

8.1 8.2 8.3 8.4

Documentation Check that the following points are met with. Check that complete documentation including technical literature in English with detailed block schematic and circuit diagram of various sub-assemblies is provided. All aspects of installation, operation, testing, maintenance and repair should also be covered in the handbook. Check that the procedure for repair giving full details of test setup is indicated. Test jigs and fixtures if any, required for maintenance and repair should also be indicated. The repair philosophy also should be indicated by the manufacturer. Check that the necessary flow charts for probable faults and the remedial actions is provided in the repair manuals. Check that each sub-assembly and component is clearly marked with schematic reference to show its function so that they are identifiable from the component layout diagram in the handbook.

Observation:

Remarks, if any:


26

Annexure – I

Standard No. SD/RAD-01/01.SEP2005

(Cross-referred clauses of the Standard No. SD/RAD-01/01.SEP2005)

1.0 SCOPE:

The present document applies to equipments meant for indoor use which utilizes wideband radio modulation techniques and which has an effective radiated power of up to or equal to -10 dBW (100 mW) and a power spectral density of up to -10 dBW / 100 KHz (100 mW) e.i.r.p. for frequency hopping spread spectrum modulation or a power spectral density of up to -20 dBW / 1 MHz (10 mW) e.i.r.p. for other forms of modulation. The equipments are transceivers, transmitters and receivers including IEEE 802.11, Home RF and Bluetooth wireless technologies, fixed, mobile or portable applications, e.g.:

Stand-alone radio equipment with or without their own control provisions;

Plug-in radio devices intended for use with or within a variety of host systems, e.g. personal computers, hand-held terminals, etc.

Plug-in radio devices intended for use within combined equipment, e.g. cable modems, set-top boxes, access points, etc.

Combined equipment or a combination of a plug-in radio device and a specific type of host equipment.

This radio equipment is capable of operating in all or any part of the frequency band shown in table 1.

Table 1: Industrial, Scientific and Medical (ISM) frequency band Direction of

transmission

Industrial, Scientific and Medical (ISM) frequency band

Transmit/Receive

2.4 GHz to 2.4835 GHz


27

1.1 Modulation

The manufacturer should state the modulation characteristics of the equipment to be tested. For the purpose of deciding which level of power density applies to the equipment, the present document defines two categories of equipment: equipment conforming to the stated characteristics of FHSS modulation and equipment not conforming to these characteristics. The latter category includes equipment using DSSS modulation.

1.1.1 Limit: The equivalent isotropic radiated power should be equal to or less than – 101 dBW (100 mW). This limit shall apply for any combination of power level and intended antenna assembly.

1.1.2 For wide band modulations other then FHSS (e.g. DSSS, OFDM, etc.), the maximum spectrum power density is limited to 10 mW per MHz e.i.r.p.

1.2 Frequency Range: 1.2.1 Definition:

The frequency range of the equipment is determined by the lowest and highest frequencies occupied by the power envelope. fH is the highest frequency of the power envelope: it is the frequency furthest above the frequency of maximum power where the output power drops below the level of -80 dBm/Hz e.i.r.p. spectral power density (-30 dBm if measured in a 100 KHz bandwidth). fL is the lowest frequency of the power envelope: it is the frequency furthest below the frequency of maximum power where the output power drops below the level equivalent to -80 dBm/ Hz e.i.r.p spectral power density (or – 30 dBm if measured in a 100 KHz bandwidth). For a given operating frequency, the width of the power envelope is (fH - fL ). In equipment that allows adjustment or selection of different operating frequ encies, the power envelope takes up different positions in the allocated band. The frequency range is determined by the lowest value of fL and the highest value of fH resulting from the adjustment of the equipment to the lowest and highest operating frequencies.


28

1.2.2 Limit:

For all equipment the frequency range shall be lie within the band 2.4 GH to 2.4835 GHz. (fL > 2.4 GHz and fH < 2.4835 GHz).

1.3 Transmitter spurious emissions :

1.3.1 Definition :

Transmitter spurious emissions are emissions outside the frequency range(s) of the equipment as defined in clause 2.3.3.1 when the equipment is in the Transmit mode and / or in Standby mode.

1.3.2 Limit:

The spurious emissions of the transmitter shall not exceed the values in the Table 2 and 3 in the indicated bands.

Table 2: Transmitter limits for narrowband spurious emission Frequency range Limit when

operating Limit when in standby

30 MHz to 1 GHz

- 36 dBm - 57 dBm

Above 1 GHz to 12.75 GHz

- 30 dBm - 47 dBm

1.8 GHz to 1.9 GHz 5.15 GHz to 5.3 GHz

- 47 dBm - 47 dBm

The above limit values apply to narrowband emissions, e.g. as caused by local oscillator leakage. The measurement bandwidth for such emissions may be as small as necessary to achieve a reliable measurement result. Wideband emissions shall not exceed the values given in table 3.

Table 3: Transmitter limits for wideband spurious emission Frequency range Limit when

operating Limit when in standby

30 MHz to 1 GHz

- 86 dBm/Hz - 107 dBm/Hz

Above 1 GHz to 12.75 GHz - 80 dBm/Hz

- 97 dBm/Hz

1.8 GHz to 1.9 GHz 5.15 GHz to 5.3 GHz

- 97 dBm/Hz - 97 dBm/Hz


29

1.4 Receiver spurious emissions:

1.4.1 Definition:

Receiver spurious emissions are emissions at any frequency when the equipment is in received mode.

1.4.2 Limit: The spurious emissions of the receiver shall not exceed the values in tables 4 and 5 in the indicated bands.

Table 4: Narrowband spurious emission limits for receivers

Frequency range

Limit

30 MHz to 1 GHz

- 57 dBm


- 47 dBm .

The limit values of table 4 apply to narrowband emissions, e.g. as caused by local oscillator leakage. The measurement bandwidth for such emissions may be as small as necessary to get a reliable measurement result. Wideband emissions shall not exceed the values given in table 5.

Table 5: Wideband spurious emission limits for receivers

Frequency range Limit

30 MHz to 1 GHz

- 107 dBm/ Hz


- 97 dBm / Hz


30

Annexure II

(This figure is for the purpose of displaying combination of frequencies for different push button only. Push button A, B, C, D may be used for different functional keys) Figure: (Source Figure 1/Q.23 of ITU)

Allocation of frequencies to the various digits and symbols of a push button set.

END OF THE DOCUMENT **********************************

High group frequencies (Hz)

1 2 3 A

B 6 5 4

7

* 0 # D

C 9 8

Hz 1209 1336 1477 1633

697

770

852

941 Low

group frequencies (Hz)

against ir of - tec on cordless phone 18th oct 2013...against ir of cordless telephones gr...

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