Cabletron Systems MICROMMAC-22T, 42T manual Requirements/Specifications

REQUIREMENTS/SPECIFICATIONS

Table 2-9. TPIM-F3 Specifications

Parameter	Typical	Minimum	Maximum
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: Transmitter Power decreases as temperatures rise and increases as temperatures fall. Use the Output Power Coefficient to calculate increased or decreased power output for an 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).

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

NOTE: The transmitter power levels provided above are Peak Power Levels after optical overshoot. Use a Peak Power Meter to correctly compare the values given to those measured on any particular port.

When measuring power levels with an Average Power Meter, add 3 dBm

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