ADTRAN ISU 128 - Manual (Page 56)

Chapter 6. Configuration
61202.029L2-1 ISU 128 User Manual 41
If two ISU 128 units are connected through channel banks, both units should
be configured for Slave mode (see Figure 6-14). To easily configure ISU 128s
for this application, one unit can be optioned using Quick Setup, Ldm 128
Master and the other using Quick Setup, Leased 128k sync. For more informa-
tion, refer to the chapter Quick Setup.
Figure 6-14
Leased Application with Channel Banks
Channel Rate
In Leased Line operation, the data rate for the ISU 128 can be configured for
64 kbps or 128 kbps. When 64 kbps is selected, only one bearer channel (B1) is
used. When 128 kbps is selected both bearer channels (B1 and B2) are used.
XXXXX XXXXX XXXXXXXXX
XXXXX XXXXX XXXXXXXXX ENTER 1 2 3 4 5 6 7 8 9 # 0 * R S C S T D R D L D T R S R
ISU 128
CANCEL
ENTER 1 2 3 4 5 6 7 8 9 # 0 * R S C S T D R D L D T R S R
ISU 128
CANCEL
DTE DTE
T1
ISU 128 ISU 128
BIMUX DP
or Equivalent
BIMUX DP
or Equivalent