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Chapter 6. Diagnostics
#x Payload Loopback
During this test, all payload information on the selected DSX-1
interface is reframed and looped back towards the DTE. See Figure
6-11 for an illustration of this test.
T3SU 300
Quad DSX-1
DSX-1
DS3 MUX
T3
Figure 6-11. T1 Payload Loopback Test
#x Framer Loopback
During this test, all information from the network side (DS3) for the
selected DSX-1 interface is looped back towards the network. See
Figure 6-12 for an illustration of this test.
T3SU 300
Quad DSX-1
DSX-1
DS3 MUX
T3
Figure 6-12. Framer Loopback Test
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T3SU 300 User Manual
6-9
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