Cabletron Systems MICROMMAC-22T, User Manual

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TPIM SPECIFICATIONS
B-3
TPIM-F3
The TPIM-F3 is designed to operate with 8.3/125
µ
m fiber optic cable.
Table B-3 lists TPIM-F3 specifications
Transmitter power and receive sensitivity levels, shown in Table B-1 ,
Table B-2 , and Table B-3 are Peak Power Levels after optical overshoot.
A Peak Power Meter must be used to correctly compare the values given
to those measured on any particular port. If power levels are being
measured with an Average Power Meter, then 3 dBm must be added to the
measurement to correctly compare those measured values to the values
listed (i.e. -30.5 dBm peak=-33.5 dBm average).
Table B-3 TPIM-F3 Specifications
Parameter Typical Minimum Maximum
Transmitter Peak Wave
Length
1300 nm 1270 nm 1330 nm
Spectral Width – – 100 nm
Rise Time 2.5 nsec – 5.0 nsec
Fall Time 3.5 nsec – 5.0 nsec
Transmitter Average
Power
-16.9 dBm -18.6 dBm –
Receiver Spectral
Response
1300 nm 1150 nm 1600 nm
Receiver Sensitivity -32.5 dBm -34.0 dBm –
Bit Error Rate: Better than 10
-10
NOTE
Transmitter Power decreases as temperatures rise and
increases as temperatures fall. Use the Output Power
Coefficient to calculate increased or decreased power output
for an operating environment.
For example, the typical power output at 25
°
C is -16.4 dBm.
For a 4
°
C temperature increase, multiply the typical coefficient
(-0.15 dBm) by four and add the result to typical output power
(4 x -0.15 dBm + -16.4 = -17.0).