Contact Closure Multiplexor



The XC/RC-1000A system consists of the XC-1000A transmitter and RC-1000A receiver.  The units transmit eight independent multiplexed channels over a single optical fiber.  The XC-1000A is activated by eight dry contact closures or TTL signals (or a combination of both) while the RC-1000A produces eight isolated output contact closures corresponding to the channels activated at the transmitter.  All channels may be used in any combination.  In addition, integral indicating LEDs on both units display the channels in use and an open collector output is provided for loss of signal.


  • Eight Independent Contacts On One Fiber
  • Contact and/or TTL Operation
  • Isolated Output Contact Closures
  • LED Channel In-Use Indicator
  • Multimode or Single Mode Versions


  • Security systems/Access Control
  • Airport and prison monitoring
  • Teleconferencing
  • Industrial Contact Closure
  • TTL Signals

Benefits of Fiber Optics:

  • Immune to electrical and environmental interference
  • Total electrical isolation between ends
  • Safety isolation between ends
  • Safety in hazardous environments
  • Secure communications


  • Equipment included:

  • Transmitter and receiver are sold separately 
    Power supply 
    Users Manual 
  • Transmitter/Receiver Input

  • Contact Closure or TTL 
  • Contact Closure Rating

  • 0.5A, resistive (10VA) 
  • Relay Status:

  • Normally Open 
  • Speed of Response:

  • 2 msec typical 
  • Allowable Transmission Loss:

  • 50u Fiber, 0-8 dB; 62.5u Fiber, 0-10dB 
    100u Fiber, 3-13 dB; 8/10u Fiber, 0-10dB
  • Operating Wavelength

  • 850 nm or 1300 nm 
  • Optical Connectors:

  • ST, multimode; FCPC, single mode 
  • Operating Power (per unit):

  • +10 to +18 VDC, @200 mA or 
    10 to 18 VAC rms @ 200 mA 
  • Operating Temperature

  • 0 to +50 degrees Cr 
  • Physical Size (per unit):

  • 4.2 x 1.8 x 5.6 in max

XC/RC-1000A  is backed by a 3-year warranty on parts and labor, plus a 30-day satisfaction guarantee.

Ordering Information:

XC-1000A-1 Transmitter, multimode, 850 nm
XC-1000A-3 Transmitter, multimode, 1300 nm
RC-1000A-1 Receiver, multimode, 850 nm
RC-1000A-3 Receiver, multimode, 1300 nm
XC-1000A-7 Transmitter, single mode, 1300 nm
RC-1000A-7 Receiver, single mode, 1300 nm

*Product specifications subject to change without notice
For operation from 115 VAC, 50/60 Hz, an XP-1000A plug-in adapter is required for each module.  For operation from 230 VAC, 50/60 Hz, an XP-1001A is required.

View a .pdf version of this spec sheet

For more information, contact:
Phone: (727) 547-8307
Fax: (727) 547-0687


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