Verilink M1-3 (880-503136-001) Product Manual - Manual (Page 64)

M1-3 Diagnostics
5-8 Verilink M1-3 User Manual
Figure 5-12 T1 Loopback Options Menu
Table 5-2 T1 Far-End Line Loopback Options Menu
T1 Local Loopback When a local loopback is activated, the customer level 1 equipment
and/or DTE signal is looped on itself before reaching the M1-3 MUX.
The local loopback can be used to check the circuit path from the
application equipment through the M1-3 and back (
Figure 5-13 ).
Figure 5-13 T1 Local Loopback
Command Description
L List Active Loop Status—Displays status of active loopbacks
( Figure 5-2 ).
A Activate loopback—Activates the selected T1 loopback. Type
the number of the T1 to loop (1—28) or 29 to loop all T1s.
W Loopback for All Ports—Type “1” and press E NTER to activate a
T1 loopback for all 28 T1 ports. Type “2” and press E NTER to
deactivate all 28 T1 loopbacks.
D Deactivate loopback—Deactivate a T1 loopback by typing the
port number ( 1 to 28 ) and pressing E NTER .
To deactivate all T1 loopbacks from this menu type “29” and
press E NTER .
Note: When you type “29”, this does not indicate an individual
loopback, it is only an option to select all T1 loopbacks.
X Exit this menu.
-- M1-3 T1 FAR END LINE LOOPBACK OPTIONS MENU -- -- M1-3 T1 FAR END LINE LOOPBACK OPTIONS MENU -- -- M1-3 T1 FAR END LINE LOOPBACK OPTIONS MENU -- -- M1-3 T1 FAR END LINE LOOPBACK OPTIONS MENU --
Active loop: None Active loop: None Active loop: None Active loop: None
L) list active loop status L) list active loop status L) list active loop status L) list active loop status
A) activate loopback D) deactivate loopback A) activate loopback D) deactivate loopback A) activate loopback D) deactivate loopback A) activate loopback D) deactivate loopback
W) loopback for all T1s X) exit this menu
W) loopback for all T1s X) exit this menu W) loopback for all T1s X) exit this menu W) loopback for all T1s X) exit this menu
M1-3 M1-3
Near End
Far End
1 of 28 T1’s
T3