GRASS VALLEY 8943FC, Инструкция по эксплуатации

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24 8943FC — Instruction Manual
Installation
Fiber Optic Inputs
There are four fiber optic input ports corresponding to Channel 1-4 as
labeled on the rear of the 8943FC-R module (
Figure 17 on page 23 ).
Note Before making any fiber connections, follow the required fiber optic cleaning
recommendations given in
Installation on page 11 .
For the fiber input ports, the 8943FC-R rear module shall follow the channel
allocation convention shown in
Figure 18 . Optical channel 1 and channel 3
are mapped to the B side of standard duplex fiber connector and channel 2
and channel 4 are mapped to the A side of a standard duplex fiber con-
nector.
Note For external attenuation specifications requirements, refer to Attenuation
Requirements on page 23 .
Figure 18. 8943FC Fiber Receiver Channels
8943FC to 8943CF Connections
When connecting an 8943FC module directly to a 8943CF (electrical to fiber
module), a non-crossing duplex fiber cable is required as shown in
Figure 19 . Refer to Attenuation Requirements on page 23 for cable length
attenuation notes.
Non-crossing is in reference to the logical A/B nomenclature associated
with the duplex connector illustrated below. Side 1A connects to side 2A
and side 1B connects to side 2B.
Figure 19. Non-Crossing Duplex Fiber Cable
Electrical Outputs
There are two electrical coax video outputs per channel corresponding to
Channel 1-4 as labeled on the rear of the 8943FC-R module (
Figure 17 on
page 23 ). Connect the output BNCs as desired for each channel.