Optical Power Budget
6-36
InterReach Unison Installation, Operation, and Reference Manual
CONFIDENTIAL
D-620003-0-20 Rev J
6.5
Optical Power Budget
Unison uses SC/APC connectors. The connector losses associated with mating to
these connectors is accounted for in the design and
should not
be included as ele-
ments of the optical power budget. The reason is that when the optical power budget
is defined, measurements are taken with these connectors in place.
The Unison optical power budget for both multi-mode and single-mode fiber
cable is 3.0 dB (optical).
The maximum loss through the fiber can not exceed 3 dB (optical). The maximum
lengths of the fiber cable should not exceed 1.5 km
(4,921 ft)
for multi-mode and 6 km
(19,685 ft)
for single-mode. Both the optical budget and the maximum cable length
must be taken into consideration when designing the system.
NOTE:
It is critical to system performance that only SC/APC fiber connectors are
used throughout the fiber network, including fiber distribution panels.
