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| FORJ: Multi-channel fiber optic rotary joint (MJn series, SM & MM) |
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MJn series multi-pass Fiberoptic Rotary Joints (FORJs) can
accommodate 2-7 and 8-19 independent fibre channels as standard options. 20-68 channels are offered on custom basis.
When channel count is eight or higher, the stator body length is slightly longer. Download PDF drawings for details.
They allow uninterrupted transmission of optical signals while rotating along the common mechanical axis.
The MJn series FORJs feature low crosstalk performance (<-60 dB) for single and multi-mode fibers. Pressure compensation is also available with this model.
All channels can accommodate either singlemode or multimode fibers.
It is also possible to combine the two types of fibers in one device across three optical windows (850, 1310, and 1550 nm).
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| SPECIFICATIONS |
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 PARAMETERS |
VALUES |
| Wavelength |
1310, 1550 nm, or both (850, 1310 nm, or both) |
| Insertion loss |
<5 dB (typical: 2-3 dB) |
| Insertion loss ripple |
~+/-0.5 to 1 dB |
| Return
loss |
45 dB |
| Crosstalk |
>50 dB (typical: 63 dB) |
| Maximum speed |
100 rpm |
| Pulling strength |
10 N |
| Start up torque |
<1 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 or FC and ST receptecles |
| Housing material |
Stainless steel |
| Fiber types |
SM or MM w/3 mm cable, 1 m (Kevlar reinforced) |
| Connector types |
FC, SC, ST, SMA, LC or /APCs |
| Dimensions |
67 mm dia. x 120 mm length |
| Weight |
2.5 kg |
| Vibration |
MIL-STD-167-1A |
| Mechanical shock |
MIL-STD-810G |
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IP rating |
IP 65 (IP 68 optional) |
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CREATE YOUR PART NUMBER
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MJn-
wavelength code-
fiber code-
connector code
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DOCUMENTS DOWNLOAD
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