User guide

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MultiDSU
Remote
MultiDSU
T1 Line
Mux
Mux
Remote Loopback
Figure 5-2. Remote Loopback Test
Processor Loopback
This test (option 3 on the Diagnostics menu) loops back the data in the
MultiDSU's Central Processor Unit (CPU) and assures that the CPU and
the T1 transceiver are communicating correctly. See Figure 5-3.
MultiDSU
Remote
MultiDSU
T1 Line
Mux
Mux
Processor Loopback
Figure 5-3. Processor Loopback Test
Put Remote Into Loop Back
This test (option 4 on the Diagnostics menu) checks the integrity of a
remote MultiDSU by putting it into loopback mode so anything it
receives over the T1 line is returned over the T1 line, through the local
MultiDSU and out the Data port to the DTE device. See Figure 5-4.
Select option 5 on the Diagnostics menu to take the remote out of
loopback mode and end the test. Select option 6 to end loop back.
MultiDSU
Remote
MultiDSU
T1 Line
Mux
Mux
Put Remote into Loopback
Figure 5-4. Put Remote Into Loopback Test