Cisco Laser Link Mainframes 安装指南
3-12
Setup and Operation
78-4004177-01 Rev D
Laser Link Mini-Mainframe Controls and Indicators,
Continued
Status Display Panel
The following table describes the indicators and test points on the Status Display
Panel for all Mini-Mainframes.
Indicator/Test Point
Description
POWER A LED
Indicates operational status of power supply A:
•
•
Green indicates proper operation
•
Red indicates a power supply A malfunction (voltage
too high or too low)
POWER B LED
Indicates operation of a redundant power supply:
•
•
Green indicates proper operation
•
Red indicates a power supply B malfunction (voltage
too high or too low)
Note: If a redundant power supply is not present, the
LED will be extinguished.
ALARM LED
Indicates alarm condition:
•
•
Normally extinguished
•
Red indicates the presence of a general alarm condition
with the power supplies or a housed module
•
Flashing red indicates fan failure
GND Test Point
Ground point.
+24 V A Test Point
Test point for the output of power supply A.
+24 V B Test Point
Test point for the output of power supply B.
Ground Symbol
Plug-in for electrostatic wrist strap. Use of an electrostatic
wrist strap is recommended whenever plug-in modules
are going to be removed.