| Item | Specification | 
| Transfer rate | 2.5 Mb/sec | 
| Address range | 1 to 255,0 | 
| Recommended fiber size>/TD>62.5/125µm | |
| Recommended fiber optic cable | Belden P/N 225812 (duplex) Belden P/N 225811 (single, two required) | 
| Connector | ST | 
| Topology | Star and multidrop | 
| Maximum cable length between Opto 22 devices* | 16,000 ft. (approx. 3 miles) | 
| Maximum repeaters on fiber segment (including hubs) | 5 | 
| Transmitter characteristics (typical): Optical power output Peak emission wavelength Numerical aperture Optical port diameter | -10 dBm 820 mm 0.31 150 mm | 
| Receiver characteristics (typical): Receiver sensitivity Equivalent numerical aperture Optical port diameter | -24 dBm 0150 400 mm | 
| Power requirement (at 5 VDC) | 220 mA | 
| Typical operating temperature | -20°C to 70°C | 
| Storage temperature | -40°C to 85°C | 
| Indicators | Single LED; lights when the controller is actively communicating on the ARCNET network, and during controller initialization upon reset. | 
| * If you are using an active hub, consult the hub specifications for maximum link distances | |
 
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