Figure 6-16. Dte Loopback Test - ADTRAN T3SU 300 User Manual

Chapter 6. Diagnostics
DTE Loopback
During this test, the combined information from the four DSX-1
interfaces is locally looped at the multiplexer of the T3SU 300 back
towards the Quad DSX-1 interface card. The end result of this test is
a loopback of all DSX-1 interfaces towards the DTE. See Figure 6-16
for an illustration of this test.
Payload and DTE Loopback
This test is a combination of a Payload Loopback and a DTE
Loopback. All of the near- and far-end DSX-1 interfaces on the
selected Quad DSX-1 interface card are looped back. See Figure
6-17 for an illustration of this test.
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T3 DS3 MUX
T3SU 300 User Manual
T3SU 300
Quad DSX-1

Figure 6-16. DTE Loopback Test

DSX-1
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