Model 2866
Fiber Optic Transmitter/Receiver Pair
Transmission Line Interface
Operating distance is dependent upon optical fiber core diameter and
the cable's optical attenuation. The table below indicates three cables
that may be used at any data rate. These cables are available in
connectorized assemblies to meet the exact configuration of your
application.
S.I.Tech offers complete links including fiber optic cable, connectors,
cable assemblies, and Bit-Drivers.
Specifications
| Transmission: |
Up to 6500 ft. (2 Km) with suitable graded index fiber optic cable |
| Typical Bit Error Rate: |
Better than 10-9 |
| Format: |
RS422 |
| Duty Cycle: |
0 to 100% |
| Minimum Pulse Width: |
50 nanoseconds |
| Data Rate: |
20 Mbps |
| Input impedance: |
Selectable 120 Ω or Hi impedance |
| Output Impedance: |
Standard RS422 |
| Transmitter Output: |
20 microwatts (-20 dBm) into 50 micron fiber |
| Wavelength: |
820 nanometers (1300 nm option) |
| Emitter Type: |
LED (lensed) |
| Optical Connector: |
ST or SMA compatible metal receptacle |
| Wavelength: |
820 to 900 nanometers (1300 nm option) |
| Minimum Sensitivity: |
(BER 10 - ) 2 microwatts (-30 dBm) @ 820 nanometers |
| Maximum Sensitivity: |
20 microwatts |
| Optical Connector: |
ST or SMA compatible metal receptacle |
| Operating Temperature: |
0 C to 85 C |
| PCB Size: |
3.0 x 3.0 in. (7.6 x 7.6 cm) |
| Weight: |
0.12 lbs (60 grams) |
| standalone Version: |
2857 |
Operating Distance for Fiber Optic Cable
Fiber Size
(Microns)
|
Attenuation
(dB/Km) |
Distance
(Meters) |
Distance
(Feet) |
| 100 |
5 |
2000 |
6600 |
| 62.5 |
4 |
2000 |
6600 |
| 50 |
3 |
2000 |
6600 |
| 10 SM* |
1 |
7000 |
23000 |
* Single mode, 1300 nm option
Optical unit connection: Connect the optical transmission
line to the Tx and Rx receptacles. Note which cable channel
goes to Tx or Rx by noting cable imprint. On the other end,
reverse the connection.
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