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Configuration Options
C-73160-A2-GB22-10 December 1996
Network Interface
Configuration Options
Table C-3
(1 of 2)
Network Interface Configuration Options
NET Framing: ESF (Factory 1) D4 (Factory 2)
Next D4 ESF Prev
Network Line Framing Format. The framing format to be used on the Network T1 interface.
D4 – Configures for the D4 framing format.
ESF – Configures for the Extended Superframe format.
NET Coding: B8ZS (Factory 1) AMI (Factory 2)
Next AMI B8ZS Prev
Network Line Coding Format. The line coding format to be used on the Network interface.
AMI – Configures for the Alternate Mark Inversion coding format.
B8ZS – Configures for the Bipolar 8 Zero Suppression coding format.
LBO: 0.0
Next 0.0 –7.5 –15 –22.5 Prev
Line Build Out. The line build out (LBO) for the signal transmitted to the network (0.0 dB is the factory
default).
ANSI PRM: Disab
Next Enab Disab Prev
Generate ANSI Performance Report Messages. Specifies whether ANSI T1.403 compliant performance
report messages (PRMs) generate.
Enab – Generates and sends ANSI PRMs over the FDL every second.
Disab – Prevents the DSU/CSU from generating ANSI PRMs.
NOTE: This configuration option is only available when the framing format is set to ESF.
NET LLB: Enab
Next Enab Disab Prev
Network Initiated Line Loopback (LLB). Allows initiation and termination of the LLB to be controlled by the receipt of
LLB-Actuate and LLB-Release commands from the network (or remote DSU/CSU).
Enab – Causes the DSU/CSU to enter an LLB (if the DSU/CSU can perform an LLB in its current state) and to cause an
LLB-Release command to terminate the LLB.
Disab – Causes the DSU/CSU to ignore LLB-Actuate and LLB-Release commands (the DSU/CSU will not be in
compliance with ANSI T1.403 and AT&T TR 62411).
NOTE: When this configuration option is enabled, the DSU/CSU recognizes the in-band LLB-Actuate and LLB-Release
codes specified by AT&T as well as the bit-oriented FDL messages specified by ANSI (for ESF only).