Compact T1 - Release 6.1
35
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Service Cards
ISDN BRI Card
There is an LED for each ISDN BRI on a card, as described in the table below:
OCU-DP Card
There are two LEDs for each channel on the OCU-DP card. The function for each LED
is listed below:
State
Description
Off
Line U-interface is attempting synchronization, or BRI is Out-of-Service.
Red
Line alarm (LOS or self test failure)
Yellow
ES or SES has occurred.
Flashing yellow
Line U-interface is synchronized with customer equipment, but is not
passing customer data.
Flashing green
Line U-interface is in external loopback toward the switch at the unit.
Green
Normal (Line U-interface is active and transparently passing customer data)
State
Description
Yellow Flickering
ALL
Boot Software in control.
Green (walking down)
Red (walking up)
ALL
Application Software in control
(repeated 3.5 times).
Red, slow flash
ALL
In Boot. Application flash code checksums did not
match and Boot is waiting for application download.
Red
ALL
In Application code waiting for Controller to issue SW/
HW revision request. This is the first request that comes
from the OCU-DP card manager in the Controller.
Green
Yellow
Top
Bottom
Port in Self-test. Duration is 5-8 seconds.
Off
Top
Bottom
Port is set down (Out-Of-Service).
Green
Top
Port is receiving valid signals.
Red
Top
Port is receiving no signal (primary) or no frame sync
(secondary or clear channel).
Red Flashing
Bottom
Port is receiving bipolar violations
Yellow
Bottom
Port is in loopback.