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Model 2506

RS-232 Asynchronous Fiber Optic Mini Modem

S.I. Tech Model 2506 RS-232 Asynchronous Fiber Optic Mini Modem

Features:

50 bps to 56 Kbps asynchronous operation on fiber optic cable, simplex or full duplex operation with handshaking
Powered by wall transformer (S.I.Tech #2121) or through the DB25 connector
2 full duplex control signals
6600 ft. (2.0Km) distance capability
0°C to 50°C operating range
ST connector receptacle (SMA option)
LED indicators for transmit and receive data
Male or female RS-232C (V.24) connectors

Specifications

Operating Mode:	Asynchronous, simplex or full duplex
Input/Output Interface:	RS-232-C, asynchronous with 2 control lines, connects directly to Terminal (RS-232 cable not required)
Transmission Line Interface:	ST connector is standard for interfacing with fiber optic duplex cable (SMA option)
Transmission Distance:	6600 ft. (2.0 Km)
Optical Power into a 62.5 Micron Core Optical Fiber:	10 microwatts, 15 dB power budget @ 820 nanometers (1300nm option)
Receiver Sensitivity:	220 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:	Host supplied or external power supply (S.I.Tech #2121 - 110 VAC to 12 VDC)
230V Version:	Use S.I.Tech 2164 power supply

Operating Distance for Fiber Optic Cable

S.I. Tech Model 2506 Diagram

Optical unit connection: Connect the optical transmission line to T and R receptacles. Note which cable channel goes to T or R by noting cable imprint. On the other end, reverse the connection.

RS-232 Connector Pins Utilized by Model 2506

S.I. Tech Model 2506 Diagram