EPIM Specifications

220 CSX400 and CSX400-DC User’s Guide

EPIM-F3

The EPIM-F3 supports Single Mode Fiber Optic cabling. It has an internal Cabletron Systems

FOT-F Fiber Optic Transceiver and is equipped with ST Connectors. Figure 80 shows the

EPIM-F3. Specifications for the EPIM-F3 are listed in Table 31.

Figure 80 EPIM-F3
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
your 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).
Table 31 EPIM-F3 Specifications
Parameter Typical Minimum Maximum
Transmitter Peak Wave Length 1300 nm 1270 nm 1330 nm
Spectral Width 60 nm – 100 nm
Rise Time 3.0 nsec 2.7 nsec 5.0 nsec
Fall Time 2.5 nsec 2.2 nsec 5.0 nsec
Duty Cycle 50.1% 49.6% 50.7%
Bit Error Rate Better than 10-10
NOTE The transmitter power levels given above are Peak Power Levels after optical
overshoot. You must use a Peak Power Meter to correctly compare the values given
above to those measured on any particular port. If you are measuring power levels with
an Average Power Meter, add 3 dBm to the average power measurement to correctly
compare the average power values measured to the values listed above (i.e., -33.5
dBm average + 3 dB = -30.5 dBm peak).