GRASS VALLEY 8939FCA Datasheet

8939FCA/8939FCB Fiber Optic Mux/Demux Modules
Key Features
• Optical multiplexer/demultiplexer for
combining signals on a single fiber
• 8939FCA provides up to 8:1 or 1:8
multiplexing or demultiplexing using
CWDM technology
• Will accept a ninth 1310 nm signal for 9:1
multiplexing when connected to the EXP
port of the 8939FCA
• Using the 8939FCB connected to the EXP
port of the 8939FCA, up to 16 channels
can be transmitted on a single fiber
• Up to 10 8939FCA modules can be housed
in a GeckoFlex frame providing up to
80 channels of optical multiplexing or
demultiplexing per 2 RU frame
• The module is a passive optical device for
reliable service
Applications
• For transporting multiple SD/HD/3G-SDI
video signal over a limited fiber cable
capacity
• When reducing infrastructure costs
(cabling, electrical power consumption,
space, etc.) is required – multiplexed
video over fiber gives us an 8:1 ratio on
cabling and support equipment
• Fiber is commonly used in any application
where SD/HD/3G-SDI signals are found
Specifications
Supported Frame Types
GeckoFlex
Power Rating
0.0 Watts (passive) – single-slot one piece rear mount
Performance Specifications
8939FCA: 8-channel CWDM channels: 1470 nm,
1490 nm, 1510 nm, 1530 nm, 1550 nm, 1570 nm,
1590 nm, 1610 nm
8939FCB: 8-channel CWDM channels: 1310 nm,
1330 nm, 1350 nm, 1370 nm, 1390 nm, 1410 nm,
1430 nm, 1450 nm
Expansion port wavelength coverage:
1260 nm > 1450 nm
8-channel insertion loss: 2.25 dB max.
Expansion port insertion loss: 1.25 dB max.
8-channel link loss: 4 dB max.
Adjacent channel isolation: 35 dB typical
Non-adjacent channel isolation: 50 dB min.
Polarization dependant loss: 0.1 dB max.
Optical return loss: 50 dB min.
Optical ripple: 0.5 dB max.
Thermal stability: 0.005 nm/°C
Channel uniformity 8ch: 1.25 dB typical
The 8939FCA and 8939FCB are bi-directional
optical CWDM multiplexer/demultiplexer
modules for the 2 RU GeckoFlex frame. They
are used where multiple signals need to be
sent over one fiber. When used together, these
flexible modules are designed to multiplex up
to 16 fiber optic signals onto a single fiber.
Each passive optical module supports
SD-SDI, HD-SDI, and 3G-SDI signals from
GeckoFlex modules equipped with SFP
(small form-factor pluggable) CWDM optical
transmitters and will handle up to 3 Gb/s.
Standard receivers can be used on each
output for the receive function with each
module separating the light into its discrete
wavelengths. These modules can be used both
on the transmit, launch side, or the receive side
of the cable.
With the 8939FCA module, the eight main
optical ports can be used to accept CWDM
wavelength lasers where each signal uses a
specific wavelength of light. The expansion port
can accept or deliver an additional 1310 nm
wavelength signal for 9:1 multiplexing.
GeckoFlex fiber-ready modules can be
equipped with CWDM fiber transmitters for
ultra-compact multiplexed optical capability.
The 8939FCA can also be used with the
8935FCB module to increase the number
of optical channels to 16 which can be
transmitted over one single-mode fiber cable.
Refer to the block diagrams shown on the
following page for using the modules.
Environmental
Storage temperature: -10 to +70°C
Operating ambient temperature: -40 to +85°C
Reference Information
The CWDM SFP transmitter submodule devices used
on 8943CF and the SFP receiver used on 8943FC
modules (or other fiber-ready GeckoFlex modules)
used in conjunction with the 8939FCA and 8939FCB
support the following frequencies supporting data rates
up to 3 Gb/s:
Model Transmitter Frequencies Supported
SFP-CWDM3G-1-K 1470 nm
SFP-CWDM3G-2-K 1510 nm
SFP-CWDM3G-3-K 1550 nm
SFP-CWDM3G-4-K 1590 nm
SFP-CWDM3G-5-K 1310 nm
SFP-CWDM3G-6-K 1350 nm
SFP-CWDM3G-7-K 1390 nm
SFP-CWDM3G-8-K 1430 nm
Receiver Frequency Supported
SFP-13103G-M1DRX-K 1270 nm > 1610 nm Dual Receiver
NOTE: The CWDM submodules listed above may also
be used with the 8935CF and 8935FC but the 8935
modules only handle bit rates up to 1.5 Gb/s..
Laser Product
8939FCA
COM
CH8
1610 nm
CH6
1570 nm
CH4
1530 nm
CH2
1490 nm
Laser Product
8939FCB
COM
CH16
1450 nm
CH14
1410 nm
CH12
1370 nm
CH10
1330 nm
Ordering Information
These modules can be mounted in a GeckoFlex
frame but not in other 8900 series frames,
including Gecko-A or Gecko-V frames. These
modules mount from the rear, each taking up one
slot. These modules have no controls or settings.
8939FCA
Rear-mount fiber optic mux and demux 8:1 or 1:8
module with Ch1 – Ch8 with expansion port
8939FCB
Rear-mount fiber optic mux and demux 8:1 or 1:8
module used with the 8939FCA to provide eight
additonal fiber optic channels Ch9 – Ch16
1490 nm
1530 nm
1570 nm
1610 nm
1330 nm
WARNING
1370 nm
The COM and EXP outputs of the 8939FCA and
1410 nm
8939FCB may fall into the Class IIIa Laser Device
1450 nm
catagory, depending on number of SFP input choices.
For detailed specifications, installation, and setup
instructions see:
www.grassvalley.com/docs/modular
63
Class |||a
EXP
CH7
1590 nm
CH5
1550 nm
CH3
1510 nm
CH1
1470 nm
Class |||a
N/A
CH15
1430 nm
CH13
1390 nm
CH11
1350 nm
CH9
1310 nm