| O.1 |
Scope
and application of measurement equipment specifications covered
in the O-series Recommendations |
| O.3 |
Climatic conditions and relevant tests for measuring equipment
|
| O.6 |
1020
Hz reference test frequency |
| O.9 |
Measuring arrangements to assess the degree of unbalance about
earth |
| O.11 |
Maintenance access lines |
| O.22 |
CCITT
automatic transmission measuring and signalling testing
equipment ATME No. 2 |
| O.25 |
[Withdrawn] Semiautomatic in-circuit
echo suppressor testing system (ESTS) |
| O.27 |
In-station echo canceller test equipment
|
| O.31 |
[Withdrawn] Automatic measuring
equipment for sound-programme circuits |
| O.32 |
[Withdrawn] Automatic measuring
equipment for stereophonic pairs of sound-programme circuits
|
| O.33 |
Automatic equipment for rapidly measuring stereophonic pairs and
monophonic sound-programme circuits, links and connections
|
| O.41 |
Psophometer for use on telephone-type circuits
This Recommendation is also included but not published in P
series under alias number P.53 |
| O.42 |
Equipment to measure non-linear distortion using the 4-tone
intermodulation method |
| O.51 |
[Withdrawn] Volume meters
O.51 was an alias name of ITU-T P.52. Only this alias name was
suppressed. ITU-T P.52 remains valid |
| O.61 |
Simple equipment to measure interruptions on telephone-type
circuits |
| O.62 |
Sophisticated equipment to measure interruptions on
telephone-type circuits |
| O.71 |
Impulsive noise measuring equipment for telephone-type circuits
This Recommendation is also included but not published in V
series under alias number V.55 |
| O.72 |
[Withdrawn] Characteristics of an
impulsive noise measuring instrument for wideband data
transmissions
This Recommendation is published under alias number H.16.
|
| O.81 |
Group-delay measuring equipment for telephone-type circuits
|
| O.82 |
Group-delay measuring equipment for the range 5 to 600 kHz
|
| O.91 |
Phase
jitter measuring equipment for telephone-type circuits
|
| O.95 |
Phase
and amplitude hit counters for telephone-type circuits
|
| O.111 |
Frequency shift measuring equipment for use on carrier channels
|
| O.131 |
Quantizing distortion measuring equipment using a pseudo-random
noise test signal |
| O.132 |
Quantizing distortion measuring equipment using a sinusoidal
test signal |
| O.133 |
Equipment for measuring the performance of PCM encoders and
decoders |
| O.150 |
General requirements for instrumentation for performance
measurements on digital transmission equipment
|
| O.151 |
Error
performance measuring equipment operating at the primary rate
and above |
| O.152 |
Error
performance measuring equipment for bit rates of 64 kbit/s and
N x 64 kbit/s |
| O.153 |
Basic
parameters for the measurement of error performance at bit rates
below the primary rate |
| O.161 |
In-service code violation monitors for digital systems
|
| O.162 |
Equipment to perform in-service monitoring on 2048, 8448, 34 368
and 139 264 kbit/s signals |
| O.163 |
Equipment to perform in-service monitoring on 1544 kbit/s
signals |
| O.171 |
Timing jitter and wander measuring equipment for digital systems
which are based on the plesiochronous digital hierarchy (PDH)
|
| O.172 |
Jitter and wander measuring equipment for digital systems which
are based on the synchronous digital hierarchy (SDH)
|
| O.173 |
Jitter measuring equipment for digital systems which are based
on the Optical Transport Network (OTN)
|
| O.181 |
Equipment to assess error performance on STM-N interfaces
|
| O.182 |
Equipment to assess error performance on OTN interfaces
|
| O.191 |
Equipment to measure the cell transfer performance of ATM
connections |
| O.201 |
Q-factor test equipment to estimate the transmission performance
of optical channels |
| O.211 |
Test
and measurement equipment to perform tests at the IP layer |
| O.220 |
Framework for the End-to-End QoS measurement and supervision for
leased circuit services |
| O.Sup3.1 |
[Withdrawn] Measuring instrument
requirements - Sinusoidal signal generators and level-measuring
instruments |
| O.Sup3.2 |
[Withdrawn] Noise measuring instruments
for telecommunication circuits
|
| O.Sup3.3 |
[Withdrawn] Principal characteristics
of volume indicators
|
| O.Sup3.4 |
[Withdrawn] Consideration of
interworking between different designs of apparatus for
measuring quantizing distortion
|
| O.Sup3.6 |
[Withdrawn] Crosstalk test device for
carrier-transmission on coaxial systems
This Supplement was attached to ITU-T Rec. O.1 (05/96) as
Appendix I without further modification |
| O.Sup3.7 |
[Withdrawn] A measuring signal (multitone
test signal) for fast measurement of amplitude and phase for
telephone type circuits
This Supplement was renumbered as ITU-T Rec. O.81 Appendix I
(06/98) without further modification |
| O.Sup3.8 |
[Withdrawn] Guidelines concerning the
measurement of jitter
This Supplement was attached to ITU-T Rec. O.171 (04/97) as
Appendix I without further modification |
