Operation Mode:	Asynchronous, simplex or full duplex
Input/Output Interface:	RS-422, 9 pin type D, (4 Wire RS-485) Asynchronous at 50 to 115.2 Kbps, connects directly to terminal (RS-422 cable not required)
Transmission Line Interface:	ST connector is standard for interfacing with fiber optic duplex cable (SMA option)
Optical Power into a 50 Micron Core Optical Fiber:	5 microwatts, 13 dB power budget @820 nanometers (1300nm option)
Receiver Sensitivity:	250 nanowatts at less than 10-9 bit error rate
Operating Temperature:	0 °C to 50 °C
Metal Enclosure:	1.75 x 3 x 0.625 in (4.5 x 7.5 x1.6 cm) Panel or DIN rail mounting option
Weight:	0.25 lb (100 grams)
Input Power:	External with power supply (S.I. Tech #2121 - 110 VAC to 12 VDC)
230V Version:	Use S.I.Tech #2122 power supply
Card Version:	2376 (3000 Rack)