Local Unit Diagnostics; Table 11-3. Test At Commands - ADTRAN DSU III ARdc Manual

LOCAL UNIT DIAGNOSTICS

The local DSU III ARdc can perform six different tests; see Table 11-3.
Front
Panel Display
DTE & Loop (LL)
Loop Only (RT)
DTE Only
DTE with TP
Test Pattern
Self Test
Exit Test
TD = Customer Transmit Data
RD = Customer Receive Data
TX = Network Transmit Data
RX = Network Receive Data
The test patterns shown in Table 11-4 on page 11-10 are available for the
DTE W TP and T
ITH
61200270L1-20
AT
Command
&T10
&T11
&T1
&T8
&T9
Z
&T0
P tests.
EST ATTERN
DSU III ARdc User Manual
Chapter 11. Testing and Troubleshooting

Table 11-3. Test AT Commands

Description
TD/RD and RX/TX Loopbacks
RX/TX Loopback at DTE Interface
TX/RX Loopback at Network Interface
RX/RX Loopback with Test Pattern
Transmit/Receive Test Pattern
Check Internal Components (Resets Unit)
Stops test, returns to data mode
11-9