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Chapter 5: Configuration
61202.086L1-1 ISU 512 User Manual 39
CONFIGURING THE ISU 512 FOR LEASED DIGITAL SERVICE
This section explains how to configure the ISU 512 when using a 2B1Q Leased
Digital service or a service that provides a permanent connection between end
points. This mode is only supported by the ISU 512 (U interface).
Selecting Leased Line configures the unit for leased line service or service that
provides a permanent connection between end points such as limited distance
modem or LDM service; see Figure 5-3.
Figure 5-3
Leased Line Menu
Clock Mode
By configuring the ISU 512 for Master timing, the ISU 512 can provide clock-
ing for both ends of the phone line. This Master option is intended to be used
at one end of a limited distance modem application, where two ISU 512 units
are directly connected without the use of channel banks; see Figure 5-4. The
far-end unit should be configured for Leased Slave and it derives its clocking
from the ISU 512 configured as Leased Master timing.
3=CONFIG
1=Netw. options
2=DTE options
3=BONDING setup
4=Quick setup
1=Dial Line
2=Leased Line
1=Clock mode
2=Channel rate
3=Test Remote
4=Maint Setup
1=Slave
2=Slave (Master)
3=Master
1=64K Bearer
2=56K Bearer
1=Enabled
2=Disabled
1=Auto Traps
2=ADLP Address
3=Port Mode