Specifications

FOMi-E1/T1 Installation & Operation Manual Chapter 4. Troubleshooting & Diagnostics
Diagnostic Tests 4-9
Activation by a
Remote User
Both LLB and RLB loopbacks can be operated from the local modem and
performed on the local and on the remote modems (see Figures 4-6
and 4-7). This option is especially useful when there is an authorized
technician at the local site and an unskilled user on the other side.
RCVR
FIBER
FIBER FIBER
FIBER
XMTR
LOCAL
DATA
TERMINAL
RCVR
G.703
DATA
XMTR
REMOTE
DATA
TERMINAL
Local FOMi-E1/T1
Remote FOMi-E1/T1
G.703
DATA
AIS
Figure 4-6 Activation of LLB at the Remote Modem
RCVR
XMTR
FIBER FIBER
FIBERFIBER
LOCAL
DATA
TERMINAL
RCVR
G.703
DATA
XMTR
REMOTE
DATA
TERMINAL
Local FOMi-E1/T1 Remote FOMi-E1/T1
G.703
DATA
AIS
Figure 4-7 Activation of RLB at the Remote Modem
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➤ ➤
➤
To run a loopback test from a remote modem:
1. Press the CURSOR button to move to the Menu Type field.
2. Press the SCROLL button until Tests is displayed.
3. Press the CURSOR button to move to the LOC/REM field.
4. Press the SCROLL button to select the remote modem.
5. Activate the LLB or RLB by following the menu configuration procedure
detailed in the instructions above. The TEST indicator lights up.
6. The remote user should verify that the data equipment is working
properly by sending a proper data flow.
7. After completion of the test (or when the fault has been corrected),
deactivate the loopback test.