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1 Introduction
CommPlete Communications Server 3
Figure 1. PRI Card Front Panel
LED Indicator Color Indication
PHYSICAL LINK Green Lit - Indicates LEC circuit connection is active and signaling is
correct.
Off - Indicates absence of valid LEC circuit signaling.
DATA LINK Green Lit - Indicates reception of a Link Up message from LEC.
Off - Indicates a reception of a Link Down message from LEC.
RED ALARM Red Lit - Indicates red alarm pattern is being received
indicating an improper receive signal or no receive signal. This
alarm can occur as a result of a high error rate or improper line
configuation. When this alarm occurs a yellow alarm is sent to the
other end of the network
Off - Indicates normal operation
YELLOW ALARM Yellow Lit - Indicates yellow alarm
Off - Indicates normal operation
DATA CHANNEL Green Changes state with each D-Channel message
CONTROL Green Not Currently used.
LED Indicator Color Indication
HOST FIFO Green Blinks - Indicates FIFO interrupt during normal operation.
HEART BEAT Green Lit - Indicates unrecoverable error
Blinking - Blinking at a one-second rate indicates normal operation.
SYSTEM ERROR Red Lit - Main processor failure (possibly FLASH is not programmed or
destoryed).
CHANNEL CLOCK Green Momentarily lits when startup self test is completed.