
Pre-Amplifier FTTP Parameters
4025561 Rev
259
Pre-Amplifier FTTP Parameters
Pre-Amplifier Nominal Alarm Values
The table below lists the OutPwr nominal alarm values for this module. Nominal
alarm values cannot be changed by the user.
Model
Nominal
Alarm Value
Attenuator
Setting
Prisma II Pre-Amplifier FTTP (1 x 19 dBm) 19.0 dBm 0
Prisma II Pre-Amplifier FTTP (2 x 17 dBm) 17.0 dBm 0
Prisma II Pre-Amplifier FTTP (2 x 19 dBm) 19.0 dBm 0
Prisma II Pre-Amplifier FTTP (1 x 21.5 dBm) 21.5 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 LasTemp nominal alarm value is always 25°C.
The LasBias nominal alarm value is always equal to the LasLim value.
The InPwr nominal alarm value is always equal to +5 dBm.
Pre-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]
-16 -5 25 45 1.0 5.0 dBm
OutPwr Optical
output
power [1]
-1 -0.7 0.7 1.0 0.1 19.0
dBm [2]
LasBias Laser bias
current [1]
-2.0 -1.0 -0.01 -0.001 0.001 0.718 A
[3]
Note:
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