Chapter 6. Diagnostics
96
T3SU 300 User Manual
61202217L1-1B
Figure 6-3. DS3 Payload Loopback Test
Line Loopback
This test allows the loop interface (LINE) section of the local
T3SU 300 to be tested from the remote T3SU 300 over the actual T3
circuit. Testing from the remote end of the circuit is performed by
using a 511 test pattern or DTE data generated by the remote host.
With this test, the T3SU 300 transceiver receives data from the
network and loops it back toward the network through its
transmitter. The transmitted data is identical to the receive data
(including framing errors) and can therefore be accurately tested by
the carrier for errors. See Figure 6-4.
Figure 6-4. Line Loopback Test
DTE
T3SU 300
The Line Loopback test is only available in loop timed mode
(
C
ONFIGURATION
->
DS3
N
ETWORK
->
DS3
T
IMING
->
L
OOP
).
DTE
T3SU 300
Summary of Contents for T3SU 300
Page 20: ...20 T3SU 300 User Manual 61202217L1 1B ...
Page 24: ...24 T3SU 300 User Manual 61202217L1 1B ...
Page 30: ...Chapter 1 Introduction 30 T3SU 300 User Manual 61202217L1 1B ...
Page 42: ...Chapter 2 Installation and Operation 42 T3SU 300 User Manual 61202217L1 1B ...
Page 78: ...Chapter 4 Status 78 T3SU 300 User Manual 61202217L1 1B ...
Page 92: ...Chapter 5 Statistics 92 T3SU 300 User Manual 61202217L1 1B ...
Page 126: ...Appendix C Acronyms Abbreviations 126 T3SU 300 User Manual 61202217L1 1B ...
Page 138: ...Appendix D Glossary 138 T3SU 300 User Manual 61202217L1 1B ...