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| FORJ: Multi-channel fiber optic rotary joint (RJn series, SM & MM) |
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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.
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| SPECIFICATIONS |
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 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 |
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IP rating |
Up to IP 65 |
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CREATE YOUR PART NUMBER
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RJn-
wavelength code-
fiber code-
connector code
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DOCUMENTS DOWNLOAD
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