4/8 Channel RS-232 Fiber Optic Multiplexer

4/8 Channel RS-232 Fiber Optic Multiplexer Related Products:
TC8116, TC8108

  • Multiplexes Async/Sync Channels Simultaneously
  • Data Rates up to 56 Kbps
  • Multimode and Single Mode (850/1300/1550nm)
  • Small Size (3/4" x 41/4" x 13/4")
  • Up to 8 Async Channels
  • Up to 4 Sync Channels (Ext. Clock)
  • Jitter Rate Less Than 8%
  • Extend Up to 8 Telephones with TC1900 RS-232 or Fiber Phone Extenders
Data Sheets: 2 pages (92 Kb)


The TC1880 Micro Multiplexer provides a cost effective method for connecting large numbers of async or sync terminals, printers and status collecting devices. It is often used in harsh environments where EMI/RFI interference and lightning conditions may exist.  The TC1880 can also be used to extend up to eight telephone lines to remote locations with Model TC1900 RS-232 or Fiber Phone Extenders.



Packaged in a remarkably small pocket-sized unit, the TC1880 RS-232 Fiber Optic Multiplexer offers the lowest per-channel cost of any comparable fiber optic multiplexer currently available in today's marketplace. Using a fan-out cable adapter, the TC1880 can be configured for up to 8 Async channels, up to 4 sync channels or combinations of both.

Configurations can be easily changed in the field by replacing the fan-out adapter.  For example, a user could multiplex four channels of asynchronous data and two channels of synchronous data simultaneously over one duplex fiber optic cable.

The TC1880 is compatible with all popular sizes and types of fiber optic cable.  It supports data rates up to 56 Kbps and is available single mode (1300/1550nm) or multimode (850/1300nm).

Fiber optic connectors are ST or FC.  Electrical connectors are DB25 female.  Power is 12VDC or 115/230VAC with an external power cube.  An extreme temperature version (-20C to 70C), Model TC1880T, is also available.

TC1880 Configuration Chart

Configuration Async Channels Sync Channels
(ext. clock)
TC1881 8 0
TC1882 4 2
TC1883 2


TC1884 0 4
TC1885 4 (w/1 control) 0
TC1886 2 (w/1 control) 2


Technical Specifications    

Data Rates (per channel)
Async or Sync with External Clock up to 56 Kbps
Transmitter ELED, ELED
Receiver PIN Diode
Wavelength 850nm, 1300nm Multimode
1300nm, 1550nm Single Mode
Fiber Optic Connectors ST, FC or SC
Loss Budget*
(850nm, 1300nm, 1550nm)
Multimode (62.5/125m): 15dB
Single Mode (9/125m): 15dB
Connector DB25 Female
Interface (DCE) RS-232
Bit Error Rate 1 in 109 or better
Visual Indicators
LED Active (Sync)
Standard 12VDC @ 250mA
Optional 115/230VAC (with external power cube)
Operating -10 to 50C
Hi-Temp (optional) -20 to 70C
Storage -40 to 90C
Humidity 95% non-condensing
Height (2.03 cm) 0.8"
Width (10.41 cm) 4.1"
Depth (4.32 cm) 1.7"
Weight (156 gm) 5 oz.
*Contact  factory for higher requirements
For more information, contact:
Phone: (727) 547-8307
Fax: (727) 547-0687

E-mail: fiberoptics@metrotek.com

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