Cabletron Systems 38, User Manual

Page: 29 / 33

Appendix A: FOMIM Specifications
A-2 FOMIM User’s Guide
A.2 ENVIRONMENTAL REQUIREMENTS
Operating Temperature: +5
°
to +40
°
C (41
°
to 104
°
F)
Non-operating Temperature: -30
°
to +80
°
C (-22
°
to 176
°
F)
Operating Humidity: 5% to 95% (non-condensing)
Table A-2 Fiber Optic Interface (All Ports)
Parameter Typical Minimum Maximum
Transmitter
Peak Wave
Length
1310 nm 1265 nm 1380 nm
Spectral Width 95 nm 125 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
NOTES
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
compare the measured average power values to the values
listed above (i.e., -33.5 dBm a 3 dB = -30.5 dBm peak).