Transports a full 9-PIN RS-232 Serial Data Signal over Fiber

Product Overview

The RS-232 Fiber Link Card system transports a full 9-Pin RS-232 copper signal over fiber optic cable. This fiber optic isolation system is an ideal solution for extending serial data communications over long distances or near large electrical equipment. Fiber optics provide long distance communication up to 74 mi. (120km) and immunity to EMI/RFI and potential transient surges which can cause noise or damage equipment.

The system supports asynchronous serial data rates from 50 bps to 1Mbit/s and has an auto-sensing feature that eliminates the need to manually set serial data rates. A comprehensive set of LEDs on the front panel indicate power status, fiber status, and serial data activity. The card supports 24-48VDC powering. RLH card housings have optional power supplies which support a wide range of power sources.

This rugged system is designed to operate over a wide operating temperature -40 to +70°C and compatible with all RLH card housings. This rugged system is manufactured in the U.S.A, and covered by our Limited Lifetime Warranty.

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Lead Time: 1 to 2 Weeks*

For volume pricing and/or delivery outside of the US and Canada, please request a quote using the link below.

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Product configurationModeConnectorDistanceFibersPart numberPricehf:att:pa_modehf:att:pa_connectorhf:att:pa_distance
Multimode, SC, 2km/1.2 miles, Dual FiberMultimodeSC2km/1.2 milesDual FiberSE4-03-2$480.00
Multimode, ST, 2km/1.25 miles, Dual FiberMultimodeST2km/1.2 milesDual FiberSE4-04-2$480.00
Singlemode, SC, 20km/12.4 miles, Dual FiberSinglemodeSC20km/12.4 milesDual FiberSE4-40-2$580.00
Singlemode, SC, 60km/37 miles, Dual FiberSinglemodeSC60km/37 milesDual FiberSE4-41-2$680.00
Singlemode, SC, 120km/74 miles, Dual FiberSinglemodeSC120km/74 milesDual FiberSE4-45-2$780.00
Singlemode, ST, 20km/12.4 miles, Dual FiberSinglemodeST20km/12.4 milesDual FiberSE4-50-2$580.00
Singlemode, ST, 60km/37 miles, Dual FiberSinglemodeST60km/37 milesDual FiberSE4-51-2$680.00
Singlemode, ST, 120km/74 miles, Dual FiberSinglemodeST120km/74 milesDual FiberSE4-55-2$780.00
Singlemode, SC, 20km/12.4 miles, Single Fiber - Side ASinglemodeSC20km/12.4 milesSingle Fiber - Side ASE4-10-2$620.00
Singlemode, SC, 20km/12.4 miles, Single Fiber - Side BSinglemodeSC20km/12.4 milesSingle Fiber - Side BSE4-11-2$620.00
Singlemode, SC, 60km/37 miles, Single Fiber - Side ASinglemodeSC60km/37 milesSingle Fiber - Side ASE4-14-2$720.00
Singlemode, SC, 60km/37 miles, Single Fiber - Side BSinglemodeSC60km/37 milesSingle Fiber - Side BSE4-15-2$720.00

DB-9 Serial Cables

Short descriptionSide 1Side 2Part numberPrice
Straight Through 6’ RS-232 Male to Male CableDB-9 MaleDB-9 MaleDB9-S-MM-06FT$6.00
Straight Through 6’ RS-232 Male to Female CableDB-9 MaleDB-9 FemaleDB9-S-MF-06FT$6.00
Straight Through 6’ RS-232 Female to Female CableDB-9 FemaleDB-9 FemaleDB9-S-FF-06FT$6.00
Null/Crossover 6’ RS-232 Male to Female CableDB-9 MaleDB-9 FemaleDB9-X-MF-06FT$6.00
Null/Crossover 6’ RS-232 Female to Female CableDB-9 FemaleDB-9 FemaleDB9-X-FF-06FT$6.00
RS-232 6’ Breakout CableDB-9 MaleDB-9 Female - QTY 3DB9-BREAKOUT-MF-04FT$40.00
DB-9 Female to Male Gender ConverterDB-9 MaleDB-9 MaleDB9-GENDER-MM$5.00

*Lead times are estimates and may vary. You will be contacted within 1 business day to go over the details of your order. If you require a specific date, let us know!
*Days = Business Days

WarningWarning: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to