Model TC2100
"Self-Healing Ring" Multi-Drop  Fiber Optic Modems

       TC2100S Stand Alone/Wall Mount Unit

Features  Product or Application Questions (click here)

  • Async Data Rates to 38.4 Kbps
  • Single Ring or Self-Healing Ring
  • Sophisticated Tx/Rx Upstream, Downstream Fault Detection
  • Multimode & Single Mode (850/1300/1550nm)
  • RS-232, RS-422 or RS-485
  • Local and Remote Loopback Tests
  • Test Signal Generator & Loop Monitor
  • Anti-Streaming (Anti-Jabber)
  • Local Dry Contact Alarm Relay
  • Extend Telephone Lines with TC1900 RS-232/Fiber Phone Extenders
Model Interface Type Speed Optics Distance
TC2100-21 RS-232/RS485/RS422 Async Up to 56.0 Kbps MM 850nm LED 15 dBm Up to 3.5 Klm
TC2100-23 RS-232/RS485/RS422 Async Up to 56.0 Kbps MM 1300nm LED 15 dBm Up to 6 Klm
TC2100-25 RS-232/RS485/RS422 Async Up to 56.0 Kbps SM 1310nm LED 15dBm Up to 30 Klm


The TC2100 Multi-Drop Fiber Optic Modem provides maximum reliability for linking monitoring devices (typically RTUs or PLCs) to a Host Controller or CPU.  It is completely transparent to data or communications protocols.

The TC2100 can be configured in Ring or Self-Healing Ring topologies.  The Self-Healing Ring scheme is sophisticated, i.e. it detects upstream and downstream failures on both Tx and Rx, and automatically re-routes any cable or equipment failure.  Multiple master units for maximum reliability are optional. It supports asynchronous data rates up to 38.4 Kbps.  Electrical interfaces are RS-232, RS-422 or RS-485.  The RS-485 electrical port can be multi-dropped.  A special version, Model TC2100T, is available for extreme temperature
(-40C to 80C) application

TC2100 Specifications
Data Rates
TC2100 DC to 56.0 Kbps (async)
Transmitter LED/ELED/Laser(option)
Receiver PIN
Wavelength 850nm/1300nm multimode
  1300nm single mode
Fiber Optic connectors ST (FC or SMA optional)
Loss Budget 15dB multimode 850nm/1310nm @62.5um
  15dB single mode
1310nm @9um
Connector DB25 Female
Type DCE
Bit error rate 1 in l09 or better
Visual Indicators Tx, RX, Fault, Sync, Power
Power source I2VDC @300ma
24/48 VDC Option
optional: 115 or 230VAC with external power cube
Operating: TC2100
-100C to 550C
-200C to 700C
Storage -400C to 900C
Humidity 95% non-condensing
Micro Size Unit Height (2.80cm) 1.125"
  Width (12.75cm) 5.0"
  Depth (7.50cm) 2.50"
  Weight (275gm) 10.0 oz
Standard Size Unit Height (3.20cm) 1.25"
  Width (15.00cm) 5.93"
  Depth (13.00cm) 6.00"
  Weight (450gm) 16.0 oz


Typical Application (Application Questions)