Page 7-9
Troubleshooting
INTER-TEL
®
AXXESS
®
MANUAL VERSION 11.0 – May 2008
Circuit Card LEDs
7
TROUBLE-
SHOOTING
T1/E1 Cards (T1C,
T1/PRI, E1/PRI, or
T1/E1/PRI)
Card On-Line Lit green to show that the primary processor on the card is active
and is communicating properly with the rest of the system. If unlit,
check for improper connection; if still unlit, return the card for repair.
Circuit Busy Lit yellow to indicate that at least one of the T1/PRI or E1/PRI circuits
is busy. Unlit when all the resources are idle.
Red Alarm Flashes when the T1 or E1/PRI Card has detected some type of red
alarm error condition for at least two to three seconds (e.g., loss of
the T1/PRI signal), either internally or from outside the system. All
calls on the card are dropped and all attendant stations display
ALARM #114 CALL TECHNICIAN. Check the error message output
(see page 7-25); then attempt to correct the problem. When the card
receives a clean signal for 10 to 20 seconds, the Red Alarm LED is
unlit and normal call processing resumes.
If, while the Red Alarm LED is flashing, the T1 or E1/PRI Card
detects a receive signal, it transmits a yellow alarm to outside the
system. If the card detects a loss of receive signal, it transmits a blue
alarm to outside the system.
Yellow Alarm Flashes when the T1 or E1/PRI Card has detected (is receiving) a
yellow alarm error condition (e.g., a red alarm error condition from
outside the system or a loss of frame synchronization). If the yellow
alarm condition occurs for less than two to three seconds, normal call
processing continues and no calls are dropped. However, if the yel-
low alarm condition lasts more than two or three seconds, the card
goes into a red alarm condition (see above).
If this LED is the only one on the card that is flashing, it may indicate
a DB Programming inconsistency. Check the alarm message and
field service diagnostic output for a programming conflict; then cor-
rect the problem.
Blue Alarm Flashes when the T1 or E1/PRI Card has detected (is receiving) a
blue alarm error condition (e.g., a stream of continuous ones from
outside the system). This “keep alive” signal, also called Alarm Indi-
cation Signal (AIS), is sent from the remote site when it is in a yellow
or red alarm condition. If the blue alarm condition occurs for less
than two to three seconds, normal call processing continues and no
calls are dropped. However, if the blue alarm condition lasts more
than two or three seconds, the card goes into a red alarm condition
(see above).
Providing Refer-
ence Clock
Lit green to show that the card is providing the system with the clock
timing necessary to control all communication components in the
system (e.g., the entire system is synchronized to the card). Unlit
when another card is providing the system reference clock.
When this LED is lit on one of the T1 or E1/PRI Cards in the system,
the External Clock Active LED on the CPU Card should also be lit.
Card Halted Lit red to show that the card has detected an unrecoverable error
and has halted the primary processor. The card will not function
properly; return the card for repair.
Table 7-2. Card Light-Emitting Diode (LED) Indications (Continued)
Location LED Description
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