Grass Valley 8943FC - Manual (Page 25)

8943FC — Instruction Manual 25
Installation
CWDM Configuration
The 8943FC module can be used for CWDM (Coarse Wavelength Division
Multiplexing) in various configurations in conjunction with 8939FCA and
8939FCB modules and 8943CF modules as well as other fiber-ready
modules from Grass Valley. Two main examples are given in this manual.
CWDM Configuration for 9 Channels
One use of CWDM involves the ability to multiplex and demultiplex up to
9 channels of video in as shown in the simple block diagram in
Figure 20 .
Figure 20. Simple CWDM Block Diagram
When an 8943FC module is populated with CWDM SFP devices, a stan-
dard crossing duplex cable is required when connecting the 8943FC
modules to the 8939FCA modules.
Crossing is in reference to the logical A/B nomenclature associated with
the duplex connector illustrated in
Figure 21 where side 1A connects to
side 2B and side 1B connects to side 2A.
Figure 21. Standard Crossing Duplex Fiber Cable
8943CF Coax 1-4 In
Fiber 1-4 Out
8943CF Coax 5-8 In
Coax In
Fiber 1-4 Out
Fiber Out
8943FC
Fiber 1-4 In
Coax 1-4 Out
8943FC
Fiber 1-4 In
Fiber In
Coax 5-8 Out
Coax Out
8939CFA 8939CFA
GeckoFlex module
with 1310nm SFP
GeckoFlex module
with 1310nm SFP
8771_04r0