49
Selecting Test Features
Setting Transmit N X 64 kb/s (N X 56 kb/s) Structured Payload/Test
Signal
shown Timeslots 3, 5, 9, 25, 26, 27 are chosen for test.
4 Choose the PATTERN type and PRBS polarity.
If your choice matches ITU-T Recommendation O.150, ITU is
displayed alongside your choice.
5 The B/G PATTERN in the non-test timeslots is fixed as NUMBERED,
that is, each timeslot contains a unique number to allow identification
in case of routing problems.
6 If 2 Mb/s framing PCM30 or PCM30CRC is chosen, set the CAS ABCD
bit value.
Signaling with a DS1 Payload Selected
7 If a DS1 PAYLOAD is transmitted signaling is only offered when a
56kb/s or Nx56kb/s TEST SIGNAL is selected.
Select the values of DS1 D4 or DS1 SLC-96 AB BITS or DS1 ESF
ABCD BITS as required. See "Setting up Signaling Bits " page 40.
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