Carrier Access Access Navigator user manual Set DS1 Loopdetect, Example set ds1 9 loopdetect off

CLI Language Reference

CLI Command List

Set DS1 Loopdetect

Purpose: This is a near-end maintenance command is used to enable CSU line loopback testing of the Access Navigator. When loop request code detection is turned on, the Access Navigator will respond to T1.403 defined in-band CSU bit patterned line loopback requests. See Figure 18-28.On drop DS1s with ESF framing and T1.403 FDL protocol, the Access Navigator will also respond to out-of-band (FDL) loopback requests.

NOTE: Detection is normally turned on for “switch” and “groom” DS1s and turned off for “drop” DS1s. This allows higher level equipment to test the Access Navigator and ignores requests from lower level equipment. This command has no effect on the Access Navigator’s ability to test remote CSUs such as Access Banks.

NOTE: In-band loop code detection works with ESF or D4 framing. It will respond to the following T1.403 defined code words, repeated for 5 seconds. Line loopback activate: 00001 00001 00001 ...

Line loopback deactivate: 001 001 001 001 ...

Security: Level 2 (operator)

Syntax: set ds1 <n> loopdetect <onoff>

Field

n

on

off

Description

DS1 number, 1 to 32, or a range of numbers such as 2-8.

Enable loop request code detection.

Disable loop request code detection.

Example: set ds1 9 loopdetect off

Access Navigator - Release 1.8 August 2003 18-111