5. Diagnostics
8335-A2-GB20-70 February 2003 5-17
Table 5-5. Diagnostics – Loopback Test
Loopback Test Screen – Model 8385 D-F
Displays the results of a loopback test.
Port Name – Select the name of the port to be tested (dsl1:1 through dsl24:1 on the
Model 8385).
Unit ID – Enter the unit to be tested in the SHDSL span:
STU-C for the central site SHDSL transceiver unit
STU-R for the remote site SHDSL transceiver unit
SRU-1 – SRU-8 for a Signal Transceiver Unit (repeater)
Serial No. – Displays the serial number of the unit to be tested after you enter the port
name and unit ID.
Unit Side – Enter the side of the unit to be tested (Customer or Network).
Duration – Enter the duration of the test (1–10 minutes) in 1-minute increments.
Test – Enter Start to begin the test. Enter Stop to end the test before the duration entered
has expired.
Total Tests Active – Displays the number of tests active on the card.
No of Repeaters in Loop – Displays the number of repeaters (SRUs) in the loop under
test.