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Model 914-X Series Modular Multiplexer System User Manual
Focal Technologies Corporation
Page 3-2
A Moog Inc. Company
Document Number: 914-0601-00
Rev.
5.0
Card ID
Ethernet
Video
Serial Data
Other
Optics
Expansion
channels
Media Converters
914-HDV2
2x
3G/HD/SD-
SDI
Requires 1
wavelength per video
channel
None
Optical Cards
914 CWDM
2 wavel
1310/1550 bypass to
single fiber
N/A
914 4Ch
CWDM
4 wavelengths to
single fiber
N/A
914 8Ch
CWDM
8 wavelengths to
single fiber
N/A
914-SWITCH
Splits the optical feed
to two fibers for
redundancy
N/A
914-FOS
Selects between two
redundant optical
fibers.
N/A
3.2
Defining a 914-X Series System
914-X Series systems are used as pairs (one remote and one console) to provide a transparent video, data and
Ethernet link over optical fiber(s). The installed optical transceivers determine the maximum optical link speed, fiber
type, number of fibers (1 or 2), and link distance. The card version sets the operational bandwidth, which is
independent from the optical data rate. The optical link uses a proprietary data protocol ensuring reliable
transmission with extremely low latency using highly efficient and dynamic bandwidth utilization.
Typically, the uplink (remote to console) and downlink (console to remote) are combined on a single fiber
–
multimode or singlemode (standard)
– with a passive optical coupler known as a Wavelength Division Multiplexer
(WDM). The WDM is integrated in the optical transceiver. Standard, single fiber systems operate with 1310 nm
uplink and 1550 nm downlink wavelengths. In larger systems, multiple 914-X Series stacks may be combined on a
single fiber using a Coarse Wavelength Division Multiplexer (CWDM) to take advantage of the high bandwidth of
optical fiber.
Figure 3-1 illustrates an example of a simple 914-X Series system configuration using a standard, standalone 914-
HDE motherboard, which supports the multiplexing of one (1) 3G/HD/SD-SDI channels, two (2) bidirectional RS-
232 / RS-485 / RS-422 serial data channels and one (1) Gigabit Ethernet channel over a single optical fiber. This
is the base card of any 914-X Series system.
Figure 3-1: 914-HDE Motherboard
Note that the HD video source (e.g. from an HD camera) is connected at the remote end. The HD video output is
provided at the console end (e.g. to an HD monitor).
Focal 914-X Series
System
Focal 914-X Series
System
914-HDE
HD Video, Ethernet
and Serial
Motherboard
Host Electronics
(Remote)
914-HDE
HD Video, Ethernet
and Serial
Motherboard
Multiple Serial
HD Video
Host Electronics
(Console)
Optical Fiber
Multiple Serial
Ethernet
HD Video
Ethernet