User guide

5-12 Solo E1 DSU User Guide—June 1998
5
Status LEDs
Use the LEDs to verify the test progress (Table 5-5).
Running Tests From Front Panel
From the front panel you can run the (Figure 5-6):
¥ DTE/NET loopback test
¥ Loopup remote test and loopdown remote test
To start a test, press a front panel button for no less than 0.5 seconds.
Figure 5-6 Solo E1 DSU Standalone Front Panel
The PWR/TEST LED shows test status (Table 5-6).
Table 5-5 Front Panel LEDs Status
LED Condition Description
PWR/TEST Turns yellow Test is running.
The test is identified in current test.
PWR/TEST Blinks Self-test in progress.
ACK Blinks quickly for 3 seconds Loopup remote or loopdown
remote is successful.
Table 5-6 PWR/TEST LED Status Indicators
Condition Description
Blinks yellow A test is running
Turns green A test is complete
Turns red for 10 seconds,
then turns green
Test failed