Carrier Access Access Navigator - Manual (Page 374)

15-32 August 2003 Access Navigator - Release 1.8
Diagnostics & Troubleshooting
DS1 Line Loopup
DS1 Line Loopup
Sends an out-of-band (FDL) payload loopup or loopdown code over the drop DS1. The CSU should
loop the received DS1 payload back to the DS1 transmit output. See Figure 15-7.
Note: This command works with ESF framing and T1.403 FDL, or with SLC-96/TR-08 framing for
Shelf A. An Access Bank II using CA FDL management will ignore this command.
Syntax: send ds1 line <loopup|loopdown>
Figure 15-7. Send DS1 Line Loopup
DS1
Line
Interface
Unit
Framer
Access Navigator
IN
OUT
Time Slot
Interchange
Code
Generator
CSU
Far End
Line Loopup
Line
Loopup
Command
FDL
Code
Access Bank II