Rs-232 Fibre Optic Extender

Introduction

A national research organisation is offering a technology for RS-232 fibre optic extender to extend 16 RS-232 serial communication lines beyond the specified distanceof 50 feet. The system comprises two identical units connected to each other with a pair of optical fibres over which 16 Rx and 16 tx signals are transmitted. With the help of the system the distance between Data Communication Equipment (DCE) and Data Terminal Equipment (DTE) can be extended up to one kilometre.

Technical Specifications:

• No. of RS-232 channels available 16 (RX/TX Lines)
• Baud Rate Supported 110 Baud 1 to 19.2K Baud 1 Km maximum
• Distance 1 Km Mximum
• Optical fibres 62.5/125 Micrometer, Multimode
• Graded Index Duplex Cable
• Termination SMA Connectors
• Power Supply 230V, 50Hz

List of Machinery/ Equipment:
Oscilloscope 20 MHz Bw
Optical Power Meter
Power supply
Function Generator
Digital Multi meter

Electrical, Electronics : The system is useful where multiple RS-232 supported devices are located away from the computer (DCE). With minor modifications in the design the system can be configured to support 16 digit/I/O lines to transit 16 bit of digital data to remote location. It can be used in a large factories where clusters of numerical controlled machines can be down loaded from the main computer where programme development is done.

• Totally transparent operation.
• All RS-232 baud rates supported.
• Independent and synchronous channel rates.
• Manchester encoding-decoding on multiplexer data communications to reduce the number of fibres to two.
• Indication of channel activities on front panel.
• Multimode graded index fibres with SMA connectors.
• Two identical units to implement the system.

Transfer Forms: Know-how; Patent sale; Technical assistance

Main Application: Electrical/Electronics/Telecommunications

For further information please contact :

Technology Bureau for Small Enterprises
APCTT Building, Qutub Institutional Area
P.O. Box – 4575
New Delhi – 110016, India