| And I just found the answer in one of our manuals. I gotta type into
an email for the custolmer so here it is: (from DECrepeater 90FS
manual)
10BaseFL Loss Budget
Table 5 shows the calculated loss budget for 10baseFL fiber-optic
segments used to interconnect the DECrepeater90FS with the cable plant.
These measurements account for the connectors at either end of the
segment and are calculated using the trasnmit and receive optical power
levels in decibels of optic power references to one milliwat (dBm).
NOTE: When connecting the cables to other devices, take
into account the transmit and receive optical power levels
of the other devices.
Table 5 10baseFL Worst-Case Loss Budget (0degree C to 50 degree C, End
of Life (see note 1))
UNIT OF
MEASUREMENT MEASURE 50/125 62/125 85/125 100/140
Numerical aperture NA 0.2 0.275 0.26 0.3
Minimum average
transmit power dBm -22.8 -19.0 -16.8 -13.5
Minimum average
receive sensitivity dBm -32.5 -32.5 -32.5 -32.5
10BaseFL loss
budget db 9.7 13.5 15.7 19.0
Note 1: No additional degredatioon is used. It is included in the
vendors specified power calculations
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