Appendix A: Connectors and LEDs
7705 SAR-8 Installation Guide Page 131
2 Batt A
Batt B
— Green: Indicates that DC input power is present and operational
Unlit: Indicates that the DC power supply is not installed or the DC
power feed is not connected
Note: The Batt A and Batt B LEDs are not affected by a Lamp Test.
3 Alarms Critical Red: Indicates that a critical condition exists, such as a fan failure, a
power feed failure, or a critical external alarm input detected
Unlit: Indicates that there are no critical alarm conditions
Major Red: Indicates that a serious condition exists, such as an over-
temperature condition, a full compact flash device, or a major external
alarm input detected
Unlit: Indicates that there are no major alarm conditions
Minor Amber: Indicates that a minor condition exists, such as a card removal,
synchronization reference failure, or a minor external alarm input
detected
Unlit: Indicates that there are no minor alarm conditions
4 ACO/LT The Audible Alarm Cutoff/Lamp Test button verifies LED operation and
turns off the external alarm control bits.
When pressed: The Lamp Test is enabled and the following LED
activity occurs (exceptions are noted):
• all status LEDs on the chassis glow green
• all activity LEDs on the chassis glow green
• the port LED on the T1/E1 ASAP Adapter card glows green
• the four port LEDs on the OC3/STM1 Clear Channel Adapter card
glow green
• the critical and major Alarm LEDs glow red, and the minor Alarm
LED glows amber
Exceptions: The following LEDS are not affected by the Lamp Test:
• Management port LEDs on the CSM
• Fan and Battery A/B LEDs on the Fan module
• all port LEDs on the Ethernet Adapter card
When released: All LEDs on CSM(s) and adapter cards return to their
pre-Lamp Test state. The Alarm LEDs turn off and stay unlit until the
next new alarm condition.
Table 30: 7705 SAR-8 Fan Module Connector and LED Descriptions (Continued)
Key Label/Part Sub
category
Description
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