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5-12 Solo E1 DSU User Guide—June 1998

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

1 2 ... 97 98 99 100 101 102 103 104 105 106 107 ... 139 140

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