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November 1996
Choices - OFF or ON
ZCS
-
Zero Code Suppression may be used to
prevent a channel of zeros when running 56K
data rate with secondary channel ON. ZCS is not
used for 64 kbps data rate.
Choices - OFF or ON
A/B SIGNL
- Selects either a software or hard-
ware algorithm to be used for SW56 operation.
The OCU DP decodes signalling from the
network and passes this to the loop as either CMI
code or data mode. The default method of decod-
ing signalling from the network is a software
technique. If the C bit (bit 8) is 0 in any of the last
seven data bytes, signalling is decoded as a 0 (on-
hook). If bit 8 is a 1 in all of the last seven data
bytes, signalling is decoded as a 1 (off-hook).
If the hardware (HW) option is enabled, sig-
nalling is decoded from the A and B bits in frames
6 and 12 of the T1 data.
Choices - SW or HW
LTCHING LBACK - Enables the OCU DP response
to the latching OCU and Channel loopback com-
mands and performance of the requested test
configuration.
Choices - ENABLED or DISABLED
TX LEVEL - Sets the Transmit Signal out of the OCU
DP to either Normal or Attenuated. For short line
lengths it may be necessary to attenuate the trans-
mit signal if the signal is large enough to saturate
the DSU/CSU equipment being used.
Choices - NORMAL or REDUCED 10dB
61200.068L1-1C
13
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