Download TR41.9.2-03-11-034-MR2-GeneralInformation

TR41.9.2-03-11-034-MR2
Title: Proposed new General Information for TSB-31-C
Distribution to: TIA TR41.9.2
Meeting Location: Dallas, Texas
11-Nov-2003
Submitting Mitel Networks (Greg Slingerland)
Organizations: Verizon (Trone Bishop)
Contact Greg Slingerland
Information: Mitel Networks Corporation
350 Legget Dr. P.O. Box 13089
Kanata, Ontario, Canada
K2K 2W7
Phone (613) 592-2122
Fax (613) 592-4784
Email [email protected]
Keywords: Part 68, TSB-31-C
NOTICE: The contributor grants a free, irrevocable license to the Telecommunications
Industry Association (TIA) to incorporate text or other copyrightable material contained in this
contribution and any modifications thereof in the creation of a TIA Publication; to copyright and
sell in TIA's name any TIA Publication even though it may include all or portions of this
contribution; and at TIA's sole discretion to permit others to reproduce in whole or in part such
contribution or the resulting TIA Publication. This contributor will also be willing to grant
licenses under such copyrights to third parties on reasonable, non-discriminatory terms and
conditions for purpose of practicing a TIA Publication which incorporates this contribution.
This document has been prepared by Mitel Networks and Verizon to assist the TIA Engineering
Committee. It is proposed to the Committee as a basis for discussion and is not to be construed
as a binding proposal on Mitel Networks or Verizon. Mitel Networks and Verizon specifically
reserves the right to amend or modify the material contained herein and nothing herein shall be
construed as conferring or offering licenses or rights with respect to any intellectual property of
Mitel Networks or Verizon other than provided in the copyright statement above.
TR41.9.2-03-11-034-MR2
This contribution contains my proposal for the General Information section of TSB-31-C. I have provided the TSB31-B version followed by my proposal. They are meant as an initial step and it is anticipated that they will be edited
during a review of them by the committee.
I have intentionally not looked after the section numbering, as that will be done when inserted into the latest draft. I
have not provided the actual test matrix at this time as it is still being edited. I will provide it under a separate
contribution when finalized to be considered by the committee for adoption into the latest draft.
The R1 version of this contributions incorporates the comments of Trone Bishop (Verizon) and his company has
been added to the list of submitting organizations.
Greg
TR41.9.2-03-11-034-MR2
Original TSB-31-B Words Edited with Proposal
4
Simulator Circuit Theory
Operation and performance of CPE are affected by the characteristics of the PSTN. Ideally, the CPE should be
evaluated over the expected range of facilities and their operating characteristics. However, this is impractical and
produces results that may not be repeatable. Thus, circuits were devised that would reasonably simulate those
characteristics of the network that affect the CPE operation from a network harm viewpoint.
The simulators are illustrated in Section 1 of TIA-968-A. They simulate the dc voltage and resistance ranges that the
CPE normally encounters when connected to the network. They also include the ac termination to be used for each
application. Different simulators are used for different CPE applications. The rules permit the use of an alternative
ac termination during signal power compliance tests (see Figure 1.8 in TIA-968-A). This alternative termination
may provide a better ac impedance match for signal power tests.
Certain tests require the use of these simulators over specified operating ranges. Other implementations may be used
provided they present dc and ac voltage and current characteristics that are equivalent to the characteristics that the
applicable loop simulators in TIA-968-A present to the CPEIf alternative loop simulators are used they should be
described in the test report.
The simulators specified in TIA –968-A are for compliance testing only. They are not intended to ensure proper
operation of the equipment when connected to the PSTN.
5
Test Conditions
Performance of the tests described in this document may require artificial conditions of the EUT not normally
achievable. For example, a battery may be used to close a switch hook relay for application of the surge stresses in
the off-hook mode when it is not practical for the equipment to be normally powered. This philosophy can be
extended to the use of special EUT software.
When artificial means, or companion equipment, or both, are used to condition the EUT for testing the effect on the
test should be evaluated and care should be taken to ensure accurate test results. Document this in the test report.
6
Suggested Equipment List (SEL)
The equipment itemized here will be identified in the Equipment section of each test procedure in the following
format:
e.g. (1) DC voltmeter SEL# 22.
where SEL# 22 means see Suggested Equipment List, Item (22).
This list itemizes the suggested requirements for test equipment needed to perform the
tests in this bulletin.
(1)
(2)
(3)
(4)
(5)
AC current meter: range > 200 mA, minimum frequency range 15 Hz to 68 Hz, accuracy +3% Full Scale
(fsc).
AC voltage source: output 0 Vrms to 1500 Vrms at 60 Hz, isolated with 10 mA minimum current sourcing
capability.
AC volt meter: input impedance > 1 megohm, range 0 V to 150 Vrms, minimum frequency range 15.3 Hz to
68 Hz, accuracy + 3%.
Applicable loop simulator circuit(s) from Section 68.3.
Bandpass filter: input impedance >100 kilohms, bandpass 200 Hz to 4000 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
TR41.9.2-03-11-034-MR2
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
(34)
(35)
(36)
(37)
Bandpass filter: input impedance >100 kilohms, bandpass 800 Hz to 2450 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 2450 Hz to 2750 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 3995 Hz to 4005 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 270 kHz to 6 MHz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 4000 Hz to 6 MHz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 10 Hz to 4000 Hz, cutoff frequencies at the 3 dB
attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 100 Hz to 4000 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass 200 Hz to 3200 Hz, cutoff frequencies at the 3
dB attenuation points, out-of-band roll-off >24 dB per octave.
Bandpass filter: input impedance >100 kilohms, bandpass continuously variable within the cutoff frequency
limits of 20 Hz to 10 MHz, cutoff frequencies at the 3 dB attenuation points, out-of-band roll-off >24 dB
per octave.
Companion terminal equipment.
Concrete surface covered with 3mm of asphalt tile.
Current Source: Maximum Output: 1 A.
Data generator: output sequence random, maximum data rate >72 kb/s, output to match data interface.
DC current meter: range 0 mA to 200 mA, accuracy +3% fsc.
DC current meter: range 20 uA, accuracy +3% fsc.
DC power supply: output level 0 V to 200 V, maximum output current >1A.
DC Voltmeter: input impedance >1 megohm, range 0 V to 200 V, accuracy +3% fsc.
Digital sampling storage oscilloscope: input impedance >1 megohm, frequency range >6 MHz, input
sensitivity of 3 mV or better, trigger sensitivity of at least 10 mV or better, accuracy +3%.
Digital sampling storage oscilloscope: input impedance >1 megohm, frequency range >100 MHz, input
sensitivity of 3 mV or better, trigger sensitivity of at least 10 mV or better, sampling rate >500 kHz, single
and accumulative trace capability, channel A minus channel B, accuracy +3%.
DS1 transmission test set capable of sending a programmed bit stream.
Frequency counter: input impedance >1 megohm, frequency range from 100 Hz to at least 10 MHz, input
sensitivity of 10 mV or better, resolution <1 Hz, accuracy +3 Hz.
Frequency generator: output impedance 600 ohms, frequency range up to at least 4 kHz, maximum output
level >40 dBm, sinusoidal output.
Frequency selective voltmeter: frequency range from 200 Hz to at least 4 kHz, input impedance >10
kilohms, balanced input, range 1 uV to 1 V, accuracy +3%, bandwidth 10 Hz and 30 Hz.
Hearing aid probe coil assembly: see Section 68.316.
Transverse balance bridge: See Figure 68.310(a) and Note (3) of this section.
Means to record oscilloscope and spectrum analyzer traces.
Multiplexer/demultiplexer for 1.544 Mb/s PCM systems with zero level encoder/decoder, may consist of
one or more discrete units which perform this function.
Ringing Amplifier: Output level to at least 150 Vrms superimposed on 56.5 Vdc, frequency range 15.3 Hz
to 68 Hz.
Spectrum analyzer: input impedance >1 megohm, frequency range from 10 Hz to at least 30 MHz,
sensitivity of 0.1 mV or better, resolution <1 Hz, accuracy +2 dB.
Summing Network: input and output impedances 600 ohms.
Type A Surge generator: output 800 V peak, having 10 s maximum front time to crest and a 560 s
minimum decay time to half crest; with a peak current capability of 100 A minimum, and the ability to
generate these pulses in both positive and negative polarity.
Type A Surge generator: output 1500 V peak, having 10 s maximum front time to crest and a 160 s
minimum decay time to half crest; with a peak current capability of 200 A minimum; and the ability to
generate these pulses in both positive and negative polarity.
TR41.9.2-03-11-034-MR2
(38)
(39)
(40)
(41)
(42)
(43)
(44)
(45)
(46)
(47)
(48)
(49)
(50)
(51)
(52)
(53)
(54)
(55)
(56)
(57)
(58)
(59)
Surge generator: output 2500 V peak, having 2 s maximum front time to crest and a 10 s minimum decay
time to half crest; a peak current capability of 1000 A minimum; and the ability to generate these pulses in
both positive and negative polarity; means for preventing the surge voltage from entering the feeding ac
power network.
Tracking generator: output impedance <600 ohms, frequency range from 10 Hz to at least 6 MHz,
maximum output level 0 dBm.
True rms ac voltmeter: input impedance >100 kilohms, frequency range from 10 Hz to at least 4 kHz,
averaging times of 0.1 s and 3.0 s, input sensitivity of 0.7 mV or better, peak indicating optional, accuracy
+3%.
True rms ac voltmeter: input impedance >100 kilohms, frequency range from 1 kHz to at least 1 MHz, input
sensitivity of 35 mV or better (referenced to 135 ohms), peak voltage and rms voltage indicating, accuracy
+3%.
True rms current meter: range 0 mA to 500 mA, accuracy +3% fsc, measures dc and rms current
simultaneously (e.g., a thermocouple type meter without dc blocking condenser at the input).
Voltage source: output 120 Vrms at 60 Hz, output current 10 mA.
Voltage source: output 300 Vrms at 60 Hz, output current 10 mA.
White noise generator: output impedance 600 ohms, frequency range from 200 Hz to at least 4 kHz,
maximum output level of at least 10 dBm.
Zero level encoder/decoder: Equipment or companion terminal equipment capable of encoding and
decoding analog signals with zero loss in the bit format appropriate for the digital interface under test.
Type B Metallic Surge Generator: 1000 V minimum peak open circuit voltage at the output port, with a 9
s front time, ±30%, and a 720 s decay time, ±20%; 25A minimum peak short circuit current at the output
port, with a 5 s front time, ±30%, and a 320 s decay time, ±20%. The generator must be able to generate
these pulses in either polarity.
Type B Longitudinal Surge Generator: 1500 V minimum peak open circuit voltage at each output port
simultaneously, with a 9 s front time, ±30%, and a 720 s decay time, ±20%; 37.5A minimum peak short
circuit current at each output port simultaneously, with a 5s front time, ±30%, and a 320 s decay time,
±20%. The generator must be able to generate these pulses in either polarity.
Feeding Bridge with 2 F blocking capacitors and inductors of 1.8 Henries minimum at 200 Hz for analog
telephone.
Test loops: Any real loop or commercially available artificial loop equivalent to 2.7 km and 4.6 km #26
AWG non-loaded cable.
Artificial ear: The artificial ear is to be the IEC coupler for supra-aural earphones as described in ANSI
S3.7-1973, Method for Coupler Calibration of Earphones. The pressure response of the microphone is to
be used in determining the sound pressure generated in the coupler by the receiver.
Standard microphone: A type (0.5 in) laboratory standard pressure microphone according to ANSI S1.121967[3] for measuring the sound pressure generated in the artificial ear. The sensitivity of the microphone
should be constant over the frequency range of 100 Hz to 5000 Hz.
Microphone amplifier: The frequency response characteristics of this amplifier should be constant over the
frequency range from 100 Hz to 5000 Hz. The input-output characteristics of this amplifier must be linear
for the range of sound pressure levels to be measured.
100 Hz to 5000 Hz sinewave frequency generator, with a sweep speed slow enough not to reduce the
accuracy of the measurement. The generator level should be constant over a frequency range of 100 Hz to
5000 Hz.
AC Voltmeter having ranges from 0.01V to 10V (full-scale reading), with an input impedance greater than
100 kilohms for bridging measurements or equal to 900 ohm for terminated measurements.
Signal Analyzer (FFT) having an input impedance >100 kilohms, a frequency range from 10 Hz to at least 4
kHz, and averaging times of 0.1 s and 3.0 s.
Spectrum analyzer: input impedance 50 ohms, frequency range from 20 Hz to at least 30 MHz, sensitivity
of –130 dBm/Hz or better, resolution < 1 Hz, absolute amplitude accuracy +1.5 dB or better.
Differential amplifier with 10X passive probe set: amplifier gain 1,10, gain accuracy +1%, bandwidth DC to
10 MHz, output impedance 50 ohms, input impedance >1 megohm, input capacitance 20 pF, bandwidth
limit filter upper cutoff frequency 10 kHz, filter response 6 dB/octave, minimum common mode rejection
ratio 10000.
100:50  balun transformer: frequency range 10 kHz to 30 MHz minimum.
TR41.9.2-03-11-034-MR2
(60)
(61)
10 dB 50  pad: frequency range DC to 11 MHz minimum.
High Pass Filter: fc 3 dB cut off frequency 500 kHz, f/ fc ratio 0.40:1, stop band attenuation –50 dBc.
TR41.9.2-03-11-034-MR2
NOTES:
1.
Any single-ended test equipment used may require a matching/isolation device (e.g., transformer) to provide a
balanced device. Similarly, an amplifier or similar device may be required to attain the required output voltage
or impedance.
2.
Unless otherwise stated, values in dBm are referenced to 600 ohms.
3.
The transverse balance test circuit for digital circuits is given in Figure 9.2-1.
4.
The specialized test equipment used in Section 15 is not itemized here. Refer to Section 15 for any equipment
details.
5.
The test equipment used only for the tests described in the Appendices is not itemized here.
6.
Regular calibration of all test instruments is necessary.
TR41.9.2-03-11-034-MR2
7
Test Requirements Matrix
Table 4.4-1 is a matrix of test procedures versus network interface codes. The table also references the applicable
technical requirement for each procedure. An "X" in the column indicates which requirement may be applicable for
the interface indicated.
{Greg: actual table to be inserted when finalized}