Cabletron Systems SEHI-22FL manual A.1.3 EPIM-F3

EPIM Specifications

A.1.3 EPIM-F3

The EPIM-F3 (Figure A-3) supports Single Mode Fiber Optic cabling. It has an internal Cabletron Systems FOT-F Fiber Optic Transceiver and is equipped with ST Connectors. EPIM-F3 specifications are listed below.

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Figure A-3 EPIM-F3

Transmitter Power decreases as temperatures rise and increases as temperatures fall. Use the Output Power Coefficient to calculate increased or decreased power output for the 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).

Parameter	Typical	Minimum	Maximum
Transmitter Peak
Wave Length	1300 nm	1270 nm	1330 nm
Spectral Width	60 nm	-	100 nm
Rise Time	3.0 ns	2.7 ns	5.0 ns
Fall Time	2.5 ns	2.2 ns	5.0 ns
Duty Cycle	50.1%	49.6%	50.7%
Bit Error Rate	Better than 10-10

The transmitter power levels given above are Peak Power Levels after optical overshoot. Use a Peak Power Meter to compare the values given above to those measured on any particular port. If you are using an Average Power Meter, add 3 dBm to the measurement to compare the average power values to the values listed above

(i.e., -33.5 dBm average + 3 dBm = -30.5 dBm peak).

SEHI User’s Guide A-3