Fiber

Ordering Information
Fiber | openGear
®
p.87
Multiplexing/De-Multiplexing
FCM-6844 4 CH Optical MUX w/ Expansion Port
FCD-6845 4 CH Optical DEMUX w/ Expansion Port
FCM-6846 8 CH Optical MUX
FCD-6847 8 CH Optical DEMUX
FCM-6848 8 CH Optical MUX w/ Expansion Port
FCD-6849 8 CH Optical DEMUX w/ Expansion Port
CWDMOpticalMUX/DEMUX
Three sets of MUX / DEMUX modules are available: a 4 channel with expansion port, an 8 channel, and an 8
channel with expansion port. Using individual, or a combination of modules, allow for the creation of 4, 8, 12,
or 16 channel systems. Modules with expansion ports enable the use of existing non-CWDM 1310nm lasers
to create 5, 9 and 13 channel systems.
Wavelength MUX / DEMUX modules use passive wavelength lters. The modules t the OG3-FR frame
but draw no power. With no active components, modules offer a very high level of reliability.
CWDMTransmittersandReceivers
Wave division multiplexing allows the use of multiple wavelengths of light on a single ber, therefore allowing a
single ber to carry multiple signals. Each signal can run at its own bit rate and protocol, independent for the
other signals.
Each electrical signal to be multiplexed into the nal output must be converted to an optical signal with a
unique wavelength by using different lasers on the transmitter. All Ross openGear
®
ber transmitters have
the option for CWDM output. The FDT-6604 dual electrical to optical transmitter comes in 8 product variants,
utilizing DFB optical SFPs, with each card transmitting two neighboring wavelengths. The FST-6602 single
transmitter, MUX-6258 audio mux and Ethernet products come in 16 different product variants. CWDM
products are identied by a two digit sufx, which identies the lower wavelength.
For example, dual channel products like the FDT-6604-27 will transmit 1270nm on its rst channel, and 1290nm
on its second channel. Single channel products like the MUX-6258-55 will output 1550nm.
Optical to electrical converters use a wide spectrum optical receiver, and will work with any wavelength. All
optical to electrical converters are wide spectrum receivers and will function within a CWDM system, regardless
of the transmitted wavelengths.
KeyFeatures
MUX/DEMUXFeatures
• Passive CWDM optical MUX and DEMUX modules contain
no active components and offer very high reliability
• Optical output connection: LC / UPC
• Supports single-mode ber
• Expandable from 4 or 8 to 12 or 16 channel systems
• Latching rear module to prevent accidental removal
• Fits OG3-FR frame, passive modules do not require any
power
• 5-year transferable warranty
• Power: 4.5 watts