S.I. Tech, Inc.Model 2503 - Optical Asychronous/Synchronous Mini Modem


  • Full duplex synchronous DC to 9.6 Kbps/asynchronous DC to 19.2 Kbps with control signals
  • 6600 ft. (2Km) distance capability
  • ST connector receptacle (SMA option)
  • Switch selectable speeds in sync operation
  • Designed to work with S.I.Tech 3503 TEMPEST modem

UL Listed. Meets FCC requirements of Class A, Part 15 Computing Devices Standard.
Specifications subject to change without notice.

Operating Mode: Asynchronous/Synchronous, full duplex with control signals
Input/Output Interface: RS-232-C, Type D, connects to Terminal (RS-232 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:
10 microwatts, 15 dB power budget @ 850 nanometers (1300nm option)
Receiver Sensitivity: 300 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 power supply (S.I.Tech #2121 - 110VAC to 12 VDC)
220V Version: Use S.I.Tech 2122 power supply

View Complete Technical Data Sheet (PDF)


Contact Information: Phone: 630.761.3640 Fax: 630.761.3644 Email: sales@sitech-bitdriver.com
S.I. Tech, Bit-Driver®, and Fiber Cluster® are registered trademarks of S.I. Tech, Inc.
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