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FORJ: Multi-channel fiber optic rotary joint (RJn series, SM & MM)

RJn-155-50

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The RJn model multi-pass Fiberoptic Rotary Joints (FORJs) connect 20-48 independent fiber channels simultaneously. They allow uninterrupted transmission of optical signals while rotating along the common mechanical axis.

Structurally, the RJn series are similar to Princetel's MJn model FORJs. So except slightly higher insertion loss all other characters are similar. If low insertion loss is critical, consider combining our smaller models, such as the MJn, with optical multiplexing. All channels can accommodate either singlemode or multimode fibers. It is also possible to combine the two types of fibers in one device.

SPECIFICATIONS
PARAMETERS VALUES
Wavelength 1270-1610 nm for SM; 850 and 1310 nm for MM
Insertion loss <6 dB (typical: 4 dB)
Insertion loss ripple ~+/-1.5 dB
Return loss (typical for SM) 50 dB
Crosstalk >50 dB (typical: 63 dB)
Chromatic dispersion <0.01 ps/nm
Polarization mode dispersion <0.01 ps
Maximum speed 100 rpm
Pulling strength 10 N
Start up torque <2 Nm
Estimated life cycle 100-200 million revolutions
Optical power handling 23 dBm
Working temperature -20 to 65 C
Storage temperature -25 to 75 C
Package style Pigtails on both ends
Housing material Stainless steel
Fiber types SM or MM w/3 mm jacket, 1 m (Kevlar/PVC or armor)
Connector types FC, SC, ST, SMA, LC or APCs
Dimensions 92 mm dia. x 192 mm length
Weight 3.5 kg
Vibration MIL-STD-167-1A
Mechanical shock MIL-STD-810G
IP rating Up to IP 65
CREATE YOUR PART NUMBER

RJn- wavelength code- fiber code- connector code

DOCUMENTS DOWNLOAD

Download PDF drawing for RJn
Download 3-D drawing (STEP)

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