Cabletron Systems 9E106-06 Manual De Usuario

EPIMs

A-4

EPIM-C

The EPIM-C supports thin-net coaxial cabling and is equipped with an internal
Cabletron Systems TMS-3™ Transceiver. You can use the TERM switch on the
front of the EPIM-C to set the internal 50-ohm terminator. This eliminates the
need to connect the port to a tee-connector and terminator. Figure A-4 shows the
setting for the terminator switch.

Table A-3. 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

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).

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).

NOTE