Cisco Laser Link 1310 nm Transmitters Installationsanleitung
78-4028521-01 Rev B
Setup and Operation
3-19
Alarm Tables,
Continued
1550 nm DFB Reverse Transmitters Alarm Table
Models
(front panel
label)
Description
Vital Sign
VS#/Pin#
Vital Sign Description
Logic
LLNTR
Laser Link LLNTR 5-
210 MHz 1550 nm
reverse transmitter
for DWDM
applications
#1/#5
#2/#11
#3/#12
#4/#4
Redundant Power Alarm
– active when module
detects loss of +24 V DC
“A” supply
Optical Output Power
Laser Bias Current
Global Alarm – +5 V DC
Optical Output Power
Laser Bias Current
Global Alarm – +5 V DC
fails, laser temp ±5%, laser
bias current ±10%, optical
power – 25%, “A” supply
fails
0 V = normal
+5 V = alarm
1 V/mW
1 V/50 mA
24 V = normal
0 V = alarm
Switch Module Alarm Table
Models
(front panel
label)
Description
Vital Sign
VS#/Pin#
Vital Sign Description
Logic
LLRS
Laser Link LLRS RF
switch, half-width
module
#1/#5
#2/#11
#3/#12
#4/#4
Redundant Power Alarm
– active when module
detects loss of +24 V DC
“A” supply
Switch Mode
Switch Mode
Switch position “x” port
connected to common
port
Global Alarm – “A”
Global Alarm – “A”
supply fails switch
position B, switch failure
0 V = normal
+5 V = alarm
0 V = auto mode
5 V = local mode
0 V = A
5 V = B
24 V = normal
0 V = alarm