RCX C-Link Series
Transceivers
EDT, Inc.
2011 June 29
14
Transceivers
The fiberoptic extender supports various types of transceivers and fiber, as shown in
Table 5.
Alternatively, the following transceivers are available as options.
•
Single fiber transceivers (distances up to 60 km): These have an integrated passive optical multiplexer
and transmit data in each direction over one fiber using different colors of light – especially useful when
going through an optical rotary joint.
•
CWDM transceivers (extended range of 5 km or more, 1310 nm, single-fiber PON) – These use up to
16 different colors of light, with the light split and combined by passive optical multiplexers that are ex-
ternal to the extender. They support up to twelve different cameras simultaneously over a single fiber.
•
DualTX and DualRX transceivers – In full mode, these are used on the secondary Camera Link con-
nector because it must carry twice as much data as the primary connector.
Coaxial Cable
The coaxial extender has two SMA connectors – one for data in, and one for data out. The cable used must
have a corresponding SMA connector at each end.
The maximum range is determined by the dB of loss at 625 MHz. EDT recommends using a cable that
keeps the amount of loss under 20 dB at 625 MHz.
The cabling must have an impedance of 50 ohms.
One cable type that meets all of these requirements is 50-ohm RG58, which has an SMA connector at each
end and a typical loss of 11 to 15 dB per 100 feet.
Table 5. Trans Fiber Combinations
Range
Fiber Type
Thickness
(microns)
Wavelength
Maximum length (meters)
at 1.25 GBaud
at 2.5 GBaud
Standard
Multi-mode fiber (MMF)
62.5
850 nm
300
150
50.0
850 nm
500
250
Extended
Single-mode fiber (SMF)
9.0
1310 nm
10,000
5000
