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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Screen reference
609DS1 Circuit Pack
17
Interface Companding
The entry in this field must match the companding method used by the far-end
switch. This field does not appear for all DS1 circuit packs.
CRC
This field indicates whether a cyclic redundancy check (CRC) will be performed
on transmissions that the DS1 circuit pack receives. This field does not display for
all circuit packs.
Idle Code
!
CAUTION:
Customers: The entry in the Country Protocol field sets the default idle code.
Do not change the default without assistance from Lucent or your network
services provider.
For some circuit packs, this is a display-only field.
Channel Numbering
The ETSI and ISO QSIG specifications require that B-channels on an E1 be
encoded as 1-30 in the Channel ID IE. Prior to this field, DEFINITY ECS only
used this scheme for Country Protocols 2a (Australia) and 13a (Germany 1TR6).
Valid entries Usage
alaw
Enter alaw for E-1 service.
mulaw Enter mulaw for T-1 service.
Valid entries Usage
y
Enter y when the Signaling Mode field is CAS and the DS1
link is providing E-1 service.
n
Enter n for all other applications.
Valid entries Usage
any 8-digit
string of 0’s and
1’s
This entry sets the signal sent out over idle DS0 channels. The
string must be compatible with the protocol used by the far-end
switch.