Chapter 5: Configuration
40 ISU 512 User Manual 61202.086L1-1
Figure 5-4
Limited Distance Modem Application
If two ISU 512 units are connected through channel banks, one unit should be
configured for Slave mode and the other for Slave (Master); see Figure 5-5. To
easily configure ISU 512s for this application, one unit can be optioned using
Quick Setup, Leased Slave and the other can be optioned using Quick Setup,
Leased Slave(Master). For more information, see the section Quick Setup Con-
figuration in this chapter.
Figure 5-5
Leased Application with Channel Banks
Channel Rate
In Leased Line operation, the channel rate for the ISU 512 can be configured
for 56 kbps or 64 kbps. When 64 kbps is selected, bandwidth of 1x64 kbps to
8x64 kbps can be selected by setting the maximum bit rate. See Maximum Bit
Rate in the section Setting DTE Options for more information.
DTE DTE
LEASED
MASTER
LEASED
SLAVE
18,000 ft
MIXED GAUGE WIRE
T1
BIMUX DP
or Equivalent
BIMUX DP
or Equivalent
DTE DTE
ISU 512
SLAVE
MASTER
ISU 512
SLAVE
