Dte Only; Test Purpose; Figure 11-9. Dte Only Test Diagram - ADTRAN DSU III AR User Manual

Chapter 11. Testing and Troubleshooting

DTE Only

The DTE O
interface drivers and receivers of the local DSU III AR plus its loop
transmitter and receiver. For this test, the loop transmit data is
connected to the loop receive data at a point close to the physical
network interface. This test can be used to verify proper operation
between the local DTE and the local DSU III AR. See Figure 11-9.
When this test is implemented, the far unit receives an OOS/OOF mes-
sage from the network and enters an alarm state.
DTE
TD
RD

Test Purpose

The DTE O
•
•
11-16
test provides a method for testing both the DTE
NLY
LOCAL
DSU/CSU
DTE Tx
DTE Rx
test is used for the following purposes:
NLY
To verify the integrity of the DTE interface.
To verify the integrity of connection between DTE and
DSU III AR.
DSU III AR User Manual
NET Tx
NET Rx

Figure 11-9. DTE Only Test Diagram

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