Cabletron Systems NBR-220 Installation Manual

Also see for NBR-220: Management guide

Contents

Appendix B: EPIM SpecificationsPage B-4NBR-SERIES Installation GuideThe transmitter power levels given above are Peak Power Levels afteroptical overshoot. Use a Peak Power Meter to compare the values givenabove to those measured on any particular port. To measure power levelswith an Average Power Meter, add 3 dBm to the average powermeasurement to compare the average power values measured to thevalues listed above (i.e., -33.5 dBm average + 3 dBm = -30.5 dBm peak).Parameter Typical Minimum MaximumTransmitter PeakWave Length 1300 nm 1270 nm 1330 nmSpectral Width 60 nm - 100 nmRise Time 3.0 ns 2.7 ns 5.0 nsFall Time 2.5 ns 2.2 ns 5.0 nsDuty Cycle 50.1% 49.6% 50.7%Bit Error Rate Better than 10-10