Cisco Laser Link Mainframes 安装指南
78-4028521-01 Rev B
Setup and Operation
3-15
Alarm Tables,
Continued
Return Receivers Alarm Table
Models
(front panel
label)
Description
Vital Sign
VS#/Pin#
Vital Sign Description
Logic
RCVR
5-200 MHz
Laser Link II full-
width receiver
module, 5-200 MHz,
rear panel optical
connector
#1/#5
#2/#11
#3
#4/#4
Redundant Power Alarm
– active when module
detects loss of +24 V DC
“A” supply
Optical Receive Power
Optical Receive Power
Alarm (< -17 dBm)
No connection
Global Alarm – any above
No connection
Global Alarm – any above
condition
0 V = normal
+5 V = alarm
0 V = normal
5 V = alarm
No connection
24 V = normal
No connection
24 V = normal
0 V = alarm
LLRR
5-210 MHz
Laser Link half-
width 5-210 MHz
return receiver, front
panel optical
connector
#1/#5
#2/#11
#3/#12
#4/#4
Redundant Power Alarm
– active when module
detects loss of +24 V DC
“A” supply
Optical Receive Power
Loss of RF Alarm (< +18
Optical Receive Power
Loss of RF Alarm (< +18
dBmV total power)
Global Alarm – optical
Global Alarm – optical
receive power < -17 dBm,
“A” supply fails
0 V = normal
+5 V = alarm
1 V/mW
5 V = normal
0 V = alarm
24 V = normal
24 V = normal
0 V = alarm
LLDR
5-210 MHz
Laser Link half-
width 5-210 MHz
receiver, front panel
optical connector
#1/#5
#2/#11
#3
#4/#4
Redundant Power Alarm
– active when module
detects loss of +24 V DC
“A” supply
Optical Receive Power
No connection
Global Alarm – optical
Optical Receive Power
No connection
Global Alarm – optical
receive power < -17 dBm,
“A” supply fails
0 V = normal
+5 V = alarm
1 V/mW
No connection
24 V = normal
0 V = alarm