Installation manual

Hardware overview/installation IVX 128
B.12
LED functions
The unit's various LEDs are designed to provide visual feedback as follows:
Power LED
The
Power
LED is located on the top-right side of the cabinet and is illuminated when power
is being applied to the system. This LED blinks periodically to indicate that the main processor is
operational.
Port LEDs
The
Port
LEDs are located above their respective amphenol connectors on the right side of the
cabinet. Each LED is illuminated when any port on its associated port card is in use.
Note:
Disconnecting an amphenol connector when its respective LED is lit will cause any of its
ports that are in use to be disconnected.
Upon power-up, approximately five minutes are required for the system to configure. The
Power
and
Port
LEDs will blink three times to indicate that the power-up sequence has been completed.
Note:
When a DLC12’s LED is . . .
• . . . blinking, the T1 line is out of service.
• . . . not lit at all, the T1 line is in service but is idle.
• . . . lit solidly, the T1 line and/or a station on the card is in use.
Memory Transfer LED
This LED is located inside the cabinet on the top center of the main board. It serves as a diagnostic
aid by flashing as data is transferred to and from the Memory Module.