Cabletron Systems SEH-34, SEH-32, SEH-24 manual Parameter Typical Minimum Maximum

INSTALLATION REQUIREMENTS/SPECIFICATIONS

		Maximum Sensitivity (-36.0)
Receive		Typical Sensitivity (-31.0)
Sensitivity
		Minimum Sensitivity (-30.0)
							Minimum Receive Input (-9.72)
Maximum							Typical Receive Input (-7.5)
Receive
Input Power							Maximum Receive Input (-6.99)
Transmitter Power*					Maximum Transmit Power (-12.0)
(At 25°C into
					Typical Transmit Power (-15.5)
8.3/125∝m fiber)
					Minimum Transmit Power (-21.0)
dBm -40 -35	-30 -25		-20 -15 -10			-5		0
Less Power						More Power
* Transmit Power	Typical Power			Minimum Power		Maximum Power
Coefficient	-0.15dBm/°C			-0.12 dBm/°C				-0.18 dBm/°C
(See Note Below)
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).

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