Lucent DDM-2000 OC-3 User And Service Manual page 849

Table D – DDM-2000 OC-3 to OC-12 FUNCTION UNITS Measured OpticalPower and Required LBO
21G/21G-U OLIU
(High/Low Power)
Received
Transmitter
Power(dBm)
21G/21G-U OLIU
(High Power)
–2.5 to –3.0
–3.0 to –8.0
–8.0 to –34.0
21G/21G-U OLIU
(Low Power)
–7.5 to –8.0
–8.0 to –34.0
21G2-U/21G3-U OLIU
0.0 to –3.0
–3.0 to –8.0
–8.0 to –34.0
22F/22F-U/22F2-U OLIU
–8.0 to –34.0
22G-U/22G2-U/22G3-U/
22G4-U OLIU
0.0 to –3.0
–3.0 to –8.0
–8.0 to –34.0
21G/21D-U/22D-U OLIU
(Controlled &
–14.0 to –34.0
Uncontrolled Env.)
(MM Fiber Only)
Notes:
1. Measured power is defined to be the measured power of the light emitted from receive fiber connector at OLIU.
2. The minimum measured received power allows for optical path penalty and unallocated margin. Connector loss is not allotted for; it should already
be accounted for in the optical power measurement.
3. The margin for falling within the max rx power is 1.0 dB.
22F OLIU 21G2-U/21G3-U OLIU
22G-U OLIU 22F-U/22F2-U OLIU
22G2-U/22G3-U OLIU
22G4-U OLIU
LBO Received
(dB) Power(dBm)
10
5
0 –2.5 to –34.0
5
0 –7.5 to –34.0
10
5
0 0.0 to –34.0
0 0.0 to –34.0
10
5
0 0.0 to –34.0
0 –14.0 to –34.0
Receiver
21D/21D-U/22D-U OLIU 21D/21D-U/22D-U OLIU
(Controlled Env.)
LBO Received LBO
(dB) Power(dBm) (dB) Power(dBm)
–2.5 to –5.0 15 –2.5 to –5.0
–5.0 to –10.0 10 –5.0 to –10.0
–10.0 to –15.0 5 –10.0 to –15.0
0 –15.0 to –33.8 0 –15.0 to –31.8
–7.5 to –10.0 10 –7.5 to 10.0
–10.0 to –15.0 5 –10.0 to –15.0
0 –15.0 to –33.8 0 –15.0 to –31.8
0.0 to –5.0 15
–5.0 to –10.0 10 –5.0 to –10.0
–10.0 to –15.0 5 –10.0 to –15.0
0 –15.0 to –33.8 0 0.0 to –31.8
–8.0 to –10.0 10 –8.0 to –10.0
–10.0 to –15.0 5 –10.0 to 15.0
0 –15.0 to –33.8 0 –15.0 to –31.8
0.0 to –5.0 15
–5.0 to –10.0 10 –5.0 to –10.0
–10.0 to –15.0 5 –10.0 to –15.0
0 –15.0 to –33.8 0 –15.0 to –31.8
–14.0 to –15.0 5 –14.0 to –15.0
0 –15.0 to –34.0 0 –15.0 to –31.8
(Uncontrolled Env.)
Received LBO
(dB)
15
10
5
0
10
5
0
0.0 to –5.0 15
10
5
0
10
5
0
0.0 to –5.0 15
10
5
0
5
0