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Post-Amplifier FTTP Parameters
4025561 Rev
A
263
Post-Amplifier FTTP Parameters
Post-Amplifier Nominal Alarm Values
The table below lists the OutPwrA and OutPwrB nominal alarm values for this
module. Nominal alarm values cannot be changed by the user.
Model
Nominal
Alarm Value
Attenuator
Setting
Prisma II Post-Amplifier FTTP (18 x 18.9 dBm) 18.90 dBm 0
Prisma II Post-Amplifier FTTP (22 x 18.1 dBm) 18.10 dBm 0
Prisma II Post-Amplifier FTTP (24 x 17.65 dBm) 17.65 dBm 0
Note:
If the attenuator is set to any value other than 0, the nominal alarm value is equal
to the nominal alarm value in the table minus the attenuator setting.
The LasTempA and LasTempB nominal alarm values are always 25°C.
The LasBiasA nominal alarm value is always equal to the LasLimA value.
The LasBiasB nominal alarm value is always equal to the LasLimB value.
The InPwr nominal alarm value is always equal to +19 dBm.
Post-Amplifier User Alarm Data Parameters
User alarms have thresholds that can be set by the user. The default user alarm data
for this module is shown below.
Alarm Function
Major
Low
Threshold
Minor
Low
Threshold
Minor
High
Threshold
Major
High
Threshold
Hys-
teresis
Typical
Range/
Nom.
Value
InPwr Optical
input power
[1]
-7 -3 25 45 1 19.0 dBm
OutPwrA Optical
output
power A [1]
-1.0 -0.7 0.7 1.0 0.1 17.65
dBm [2]
OutPwrB Optical
output
power B [1]
-1.0 -0.7 0.7 1.0 0.1 17.65
dBm [2]
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