Cisco GS7000, Installation And Operation Manual

Page: 76 / 254

Chapter 2 Theory of Operation
56
Operating Status Parameters
The following table defines the monitored operating parameters for the optical
switch.
Parameter Name Function Typical Operating Range Units
Switch Position Read optical switch position
(Calibrated at 1550 nm only) PathA/PathB state
Path A Optical Power Input optical power on Path A
(Calibrated at 1550 nm only)
-10 to 14 dBm
Path B Optical Power Input optical power on Path B -10 to 14 dBm
Module Temp Module temperature Ambient temp + 7 degC
Switch Temp Switch temperature Ambient temp + 7 degC
Alarm Parameters
The following table defines the alarm parameters for the optical switch.
Alarm Name Error Condition Values Hysteresis
Loss of Input
Light at Path A Optical input at path A is less than the
switching threshold at path A Minor Alarm(0)
Ok(1) [1]
Loss of Input
Light at Path B Optical input at path B is less than the
switching threshold at path B Minor Alarm(0)
Ok(1) [1]
Both Dark Loss of light at both inputs
(Loss of Input Light at Path A and Loss of
Input Light at Path B) Major Alarm(0)
[2]
Ok(1)
No Switch Optical switch failed to change states when
commanded Major Alarm(0)
[2]
Ok(1)
Power Supply
OK Failure of external power supply rails Major Alarm(0)
[2]
Ok(1)
Excessive Input
Optical Power Optical input at Path A or optical input at
Path B is greater than or equal to 24 dBm Major Alarm(0)
[2]
Ok(1)