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2 - 8 ONline Ethernet 10BASE-FB Module Installation and Operation Guide
Table 2-3 provides the transmit optical power ranges and required receiver
optical power budget levels for the 10BASE-FB Modules.
Table 2-4 provides 10BASE-FB Module optical power budget values for high
power.
Table 2-3. ONline 10BASE-FB Module Optical Power Budget:
Normal Power
Cable
Size
Used
(micron)
Transmit
Power
Range
(dBm)
Receive
Power
Range
(dBm)
Optical
Power
Budget
(dB)
Link
Loss
Required
(dB)
(ONline to
ONline)
Link Loss
Required
(dB)
(ONline to
10BASE-FB)
50/125
NA
0.20
-21.5 ±
3.0
-8.0 to
-30.0
5.5 None None
62.5/125
NA
0.275
-17.0 ± 3.0 -8.0 to
-30. 0
10.0 None None
85/125
NA
0.29
-14.0 ±
3.0
-8.0 to
-30.0
13.0 None >3.0
100/140
NA
0.29
-11.5 ± 3.0 -8.0 to
-30. 0
15.5 None >5.5