Carrier Access Access Navigator Set DS1 Payload Loopup, Syntax set ds1 n payload loopuploopdown

CLI Language Reference

CLI Command List

Set DS1 Payload Loopup

Purpose: Provides payload loopback to verify DS1 signal processing in the Quad T1 Framer card. The payload loopup command creates a signal connection inside the framer, causing it to loop the received payload data back into the framer, where the 24 DS0s are reframed as the DS1 transmit output. See Figure 18-29.

NOTE: The DS1 must be set Out of Service, using the set ds1 <n> down command, before you can use loopbacks or test patterns.

NOTE: For normal operation, the loopback must be disabled (loopdown).

Quad T1 Framer Card

DS1

IN

OUT

Line

Interface

Unit

Framer

Time Slot

Interchange

Figure 18-29. DS1 Payload Loopback

Security: Level 2 (operator)

Syntax: set ds1 <n> payload <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.

Example: set ds1 9 payload loopdown

18-112 August 2003 Access Navigator - Release 1.8