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Figure 67: TN1654 DS1 Converter circuit pack LEDs
Figure notes:
1. Alarm LED (Red)
2. Test LED (Green)
3. Busy LED (Yellow)
The yellow LED indicates the state of the fiber interface, the fiber channel, the control channel,
and the communications link to the SPE in the following manner and order of priority. See
Table 23: DS1 Converter yellow LED flashing
.
Table 23: DS1 Converter yellow LED flashing states
LED on
LED off
0.1
0.1 second
second
0.5
0.5 second
second
1 second
1 second
2 seconds
0.2 second
4. STATUS LEDs
5. SPAN LEDs
states.
Condition
Fiber out-of-frame or fiber loss of signal.
In frame, fiber channel down. The fiber channel communicating
between the DS1 Converter and the other fiber endpoint (EI or
SNI) is down.
In frame, control channel down. The control channel between the
two DS1 Converters in the DS1 Converter complex is down.
No response from the server. The server is not acknowledging
messages from the DS1 Converter or the communications link to
the server is down.
LED indicators
1 of 2
Issue 3 January 2008
149
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