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| FORJ: Multi-channel fibre optic rotary joint (JXn series, SM & MM) |
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JXn series multi-pass Fibre optic Rotary Joints (FORJs)
accommodate 3-12 independent fibre channels as standard options. 13-60 channels are offered on custom basis.
Loss and back reflection are uniform across all channels. There is
no channel "drop off" or "blind spot" during rotation. They feature low crosstalk performance (<-60 dB) for both single and multi-mode fibres.
This model shares the same body diameter and mounting schemes with MJn series FORJs. However, the JXn design makes it more convenient to integrate with electrical slip rings.
Pressure compensation is available as an option.
Like our other multi-channel FORJs, all channels can accommodate either singlemode or multimode fibres.
It is also possible to combine the two types of fibres 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 (SM); 850 & 1310 nm (MM) |
| 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) |
| Analog bandwidth (B) |
>5 GHz (10 GHz measured assuming PWxB=0.3) |
| Data rate (digital BW R) |
>10 Gbps (M=2; 20 Gbps if M=4 in
Hartley's Law) |
| Maximum speed |
100 rpm |
| Pulling strength |
10 N |
| Start up torque |
<1 Nm |
| Estimated life cycle |
50-100 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 receptacles |
| Housing material |
Stainless steel |
| Fibre 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 122 mm length |
| Weight |
2.5 kg |
| Vibration |
MIL-STD-167-1 |
| Mechanical shock |
MIL-STD-810F |
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IP rating |
IP 65 (IP 68 optional) |
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CREATE YOUR PART NUMBER
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JXn-
wavelength code-
fiber code-
connector code
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DOCUMENTS DOWNLOAD
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Download Solidworks 3-D drawing for JXn |
Download 3-D drawing in STEP for JXn (n=8-12)
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CLICK for larger view