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Model 2345

Optical Asynchronous Modem Point to Point

S.I. Tech Model 2345 Optical Asynchronous Modem Point to Point

Features:

9.6 Kbps asynchronous half duplex operation
6600 ft. (2Km) distance capability
0 °C to + 50 °C operating range
ST connector receptacle (SMA option)
Designed to work with Johnson Controls System and with S.I.Tech Model 2110
To be used with bussed motherboard 3520, power supply 4000, and series 3000 rack

Specifications

Operating Mode:	Asynchronous, half duplex RS-485 (8-pin RJ-45)
Input/Output Interface:	Asynchronous at 9.6 Kbps
Transmission Line Interface:	ST connector is standard for interfacing with fiber optic cable (SMA option)
Transmission Distance:	See distance chart
Optical Power into a 50 Micron Core Optical Fiber:	5 microwatts, 10 dB power budget @ 820 nanometers (High power option & 1300nm option))
Receiver Sensitivity:	250 nanowatts at less than 10^-9 bit error rate
Operating Temperature:	0 °C to 50 °C
Enclosure:	19" rack
Card Size:	EuroCard 3.9" x 6.8" (9.9 x 7.3 cm)
Weight:	0.5 lb (200 grams)
Termination:	A switch is provided to terminate RS-485 line

Operating Distance for Fiber Optic Cable

S.I. Tech Model 2345 Diagram

RS-485 Pins Utilized by 2345 Card RJ-45 Connector (Female)

S.I. Tech Model 2345 Diagram

S.I. Tech Model 2345 Diagram

S.I. Tech Model 2345 Diagram

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Bomara Associates Phone: 800.5BOMARA (800.526.6272) Phone: 978.452.2299 Fax: 978.452.1169 3 Courthouse Lane, Chelmsford, MA 01824 USA
email: bobr@bomara.com web: www.bomara.com