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3
Performance Tests
Optical Pulse Mask and Output Characteristics
NO TE
86
Specifications
Optical Output Power
52 Mb/s to 2.5 Gb/s Output **
1310 nm
1550 nm
10 Gb/s Output **
1550 nm HS type
1310 nm SR type
1550 nm SR type
* Typical transmit power level is in the middle of the stated range.
** Output wavelength/type is dependent on options fitted. See "Option
Guide" on page 15.
Extinction ratio
Pulse mask
Description
This test ensures the Optical Transmitter(s) output power level
and waveform meet the required eye mask, extinction ratio and
average power specifications. The Transmitter output is
connected to an Optical Oscilloscope and the eye compared
with the predefined masks stored in the Oscilloscope memory.
The average signal power levels and Extinction Ratio are also
measured using the Oscilloscope.
These tests are identical for SONET or SDH modes and can be tested in
either mode and should not be repeated for both.
-5 to +0 dBm *
-2 to +3 dBm *
-1 to +1 dBm *
-6 to -1 dBm *
-5 to -1 dBm *
>8.2 dB,
(>6 dB for 1310 nm 10 Gb/s SR type)
Meets ITU-T G-957 (6/1999) and Telcordia
GR-253-CORE Issue 3 (9/2000)
Installation and Verification Manual
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