Model 2859

Dual High Speed RS-422 to Fiber Optic Modem

The S.I.Tech Model 2859 is designed for high speed RS-422 data
communication using fiber. This system uses triax connectors for
interfacing to high speed network. The model 2859 provides 2
independent channels for data, clock, etc.

Specifications

Operation Mode:	Asynchronous, simplex or full duplex, 20 Mbps
Input/Output Interface:	RS-422, 2 channel system, 4 Triax connectors
Transmission Line Interface:	4 ST connector fiber optic receptacles (SMA option)
Transmission Distance:	2 Km - 6600 ft. (5 Km option)
Transmitter Output Power:	30 microwatts into 50 micron fiber
System Wavelength:	820 nanometers (1300 nm option)
Minimum Sensitivity:	3 microwatts @ 820 nanometers at less than 10 -9 bit error rate
Operating Temperature:	0 °C to 50 °C
Input Power:	110 VAC 60 Hz
Metal Enclosure:	1U 19" rack 17"W X 1.75"H X 7.5"D (43.2 X 4.3 X 19.0 CM)
Weight:	5 lbs. (2.3 kg)
230 Volt Version:	2859V

 

Operating Distance for Fiber Optic Cable

Fiber Size	Attenuation	Distance	Distance
(Microns)	dB/Km	Meters	Feet
62.5	4	200	6600
50	3	200	6600
10SM**	1	10000	33000