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Description and Features
Applications
ISDN is a networking standard that provides end-to-end, simultaneous handling of digitized voice and data traffic
on the same link.
Figure 1
Subscriber Line (DSL) to the Central Office (CO). Line Termination (LT) in the CO occurs at the ISDN switch.
The DSL loops are U-interface. The FRC-756 provides Line Unit Line Termination (LULT) at the RT. The
subscriber site has the Network Termination (NT1).
ISDN
Switch
L
T
Set all options for the FLC-706 through the PG-Flex COLU or PGTC unit RS-232 maintenance port. Disable
ISDN by means of the maintenance port to prevent time slots from being assigned when they are not in use. The
FLC-706 must be plugged into a COT shelf before any ISDN provisioning screens can be displayed.
To provide clocking to the FLC-706, ensure the following conditions exist:
•
a composite clock on the PG-Flex COT shelf is connected and correctly terminated
•
an FPI-729 or an FAU-728 List 2 card is installed
2
shows a typical ISDN configuration. The FLC-706 connects an ISDN Digital
PG-Flex
L
DSL
U
N
Loop
T
COT
Figure 1. Typical ISDN Configuration
January 6, 2003
PG-Flex
L
HDSL
U
L
Facility
T
RT
SCP-FLC706-011-03H
DSL Loop
NT1
<18kft to 1300
FLC-706 List 1A
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