Carrier Access Access Navigator user manual 00001110 11111111

CLI Language Reference

CLI Command List

Purpose: Sends an out-of-band (FDL) line loopup or loopdown code over the Access Navigator DS1. It is used with other commands and test equipment to verify that the DS1 signal is reaching far-end CSU equipment, such as the Access Bank.

Line loopups can be used with either unframed (line) or framed (payload) patterns and test commands, including Send DS1 Line <pattern>, Send DS1 Line <pattern> Test, Send DS1 Payload <pattern>, and Send DS1 Payload <pattern> Test.

When the operator sends a line loopup command, the Access Navigator transmits a T1.403 defined out-of-band line loopback activate code over the FDL channel of the drop DS1 to the CSU. After the required 5-second integration time, the CSU should perform a line loopback, which loops the received DS1 frame back to the DS1 transmit output (see Figure 18-4).

When testing is complete, send a line loopdown command.

NOTE: This command will send one of the following T1.403 defined FDL code words, repeated for 5 seconds.

Line loopback activate:	00001110	11111111
Line loopback deactivate:	00111000	11111111

Line	Access Navigator
		Code	FDL			Far End
Loopup
		Generator	Code		Line Loopup
Command
				Access Bank II

Time Slot Interchange

Framer

Line

Interface

Unit

IN

DS1 OUT

CSU

Figure 18-4. Send DS1 Line Loopup

Security: Level 2 (operator)

Syntax: send ds1 <n> line <loopuploopdown>

Field	Description
n	DS1 number, 1 to 32, or a range of numbers such as 2-8.
loopup	Enable line loopback.
loopdown	Disable line loopback.

18-64 August 2003 Access Navigator - Release 1.8