Function LED/Button Label Color Operation
Unit Indicator
LED/button
Unit ID BLU Steady ON=highlights a
particular unit in a rack
of equipment. LED
Indicator is on front
(button) and rear of
unit.
Notes:
1. The Power LED/button works like a momentary switch. To power up the Brick device, press the
button in and a steady green LED light indicates that the Brick is powered up. To power down
the Brick device, press and hold the button in again for at least 3 seconds.
2. If lit, there is an alarm fault in either the power supplies or fans. Observe the Fan1 and Fan2
LEDs to determine if it is a Fan alarm, or the PS1 and PS2 LEDs to determine if it is a power
supply alarm.
3. The Audible Cut Out (ACO) LED/button works like a momentary switch. Press the button in to
turn off an audible alarm and the ACO LED.
4. The Unit ID LED/button works like a momentary switch. Press and hold the button in to activate
the front and rear Unit ID LEDs. When pressed in for about 6 seconds, the Unit ID button starts
on-demand diagnostics (refer to the section “Hardware diagnostics” (p. 6)).
In addition to the activity lights described above, the DC version of the Model 1200 Brick
also has a Fault light, which is amber when power is lost to the A or B power connector.
Hardware diagnostics
When the Model 1200 Brick is powered on and boots up, it performs a Power On Self Test
(POST) diagnostics check of the motherboard, during which its memory, circuitry, and
peripherals are tested and configured. If the boot up of the motherboard is successful, the
motherboard LEDs, which are visible through four holes located in the rear of the chassis
near the bottom center of the Brick, flash green or red and then go out. If the boot up of
the motherboard is unsuccessful, each LED on the motherboard displays a steady green or
red. Should this occur, contact Alcatel-Lucent Customer Technical Support and indicate the
locked color status of each LED on the motherboard, from left to right, which can be used
to help determine the problem encountered during the POST diagnostics check.
The Model 1200 Brick also allows you to perform an on-demand diagnostics check of the
front panel alarms hardware (controlled by the Brick Alarm card installed in the front
chassis of the Brick), or to confirm a fault that might have occurred during normal
operations.
To perform an on-demand diagnostics check, do the following:
1. Confirm that the Brick is connected to an active power source.
2. Press and hold the Unit ID LED/button for five seconds.
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