Port Rdl; Test Purpose; Figure 4-17. Port Rdl - ADTRAN DSU III TDM Manual

Chapter 4. Testing and Troubleshooting

Port RDL

After selecting P
at the far end. Data entered into the selected port at the local end travels
through the network to the remote end, where it is looped back and transmit-
ted to the local end. This allows the whole network to be tested on a port-by-
port basis. The other three ports function normally during this test. See Figure
4-17.
LOCAL TDM
Tx Tx
Selected
Port
Rx Rx
Tx
Rx
Tx
Rx
Tx
Rx

Test Purpose

Tests the local DSU, the DDS circuit, and the remote DSU.
4-22
RDL for the specific port, the selected port is looped back
ORT
Tx
Rx
DSU III TDM User Manual
Tx
TELCO
Rx
REMOTE TDM
Tx x T
Rx x R
Tx
Rx
T x
Rx
Tx
Rx

Figure 4-17. Port RDL

DTE
61200063L1-20