Cisco Laser Link Proteus Scaleable Node 安装指南
3-8
Setup and Operation
78-4028521-01 Rev B
Laser Link III Mainframe Controls and Indicators,
Continued
EMIC Module
The following table describes the indicators and test points on the EMIC module.
Indicator/Test Point
Description
PWR 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)
Note: Function is controlled by position of the Redundant
Power/“B” Alarm switch.
PWR B LED
Indicates operation of a redundant power supply:
•
•
Green indicates proper operation
•
Red indicates a malfunction (voltage too high/too low)
Note: If a redundant power supply is not present, the
LED will be extinguished. Function is controlled by
position of the Redundant Power/“B” Alarm switch.
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
ADDR. LED
Illuminates green as element management system
software polls the EMIC. Expect intermittent illumination.
STATUS LED
Indicates operational status of the EMIC:
•
•
Normally extinguished
•
Red indicates a malfunction
+24 V A Test Point
Test point for the output of power supply A.
GND Test Point
Ground point.
+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.