Black Box COMPACT T1 MT850A - Manual (Page 538)

B-10 Compact T1 - Release 6.1
Diagnostices & Troubleshooting
Loopbacks Overview
Receiving DS1 CSU Loop
Causes a line Loopback. Loopup code sent by remote unit or network. Occurs at
local DS1 CSU. Have DS1 vendor check for framing/errors.
Enable Detection of CSU Loopcode
Enable detection of CSU loop code (10000 for loopup; 100 for loopdown).
> set a:1 loopdetect on
OK
View Status of Loopback
> show a:1
SLOT A:
Settings for DS1 1:
Circuit ID: DS1# A:1
Up/Down: UP
Framing: ESF
Line Coding: B8ZS
Line Build Out: DSX-1 EQUALIZATION FOR 0-133 ft.
(CSU 0dB)
Loop Code Detection: ON (Default)
Loopback: OFF
FDL Type: None
T1
Adit 600
Local
DCE
V.35
Loopup Code Sent by Remote Unit
Signal Not Reframed
Local
DTE
FXS
Telephone
DS1
Network
CSU Loopup
Code
Compact T1