Model TC1200

RS-232 Async Fiber Modem w/Handshaking


Product or Application Questions (click here)

  • Async Data Rates Up to 120 Kbps
  • 3 Independent Channels (or 1 Ch. w/Handshaking)
  • 5 Control Signals (RTS, CTS, DTR, DSR & CD)
  • Multimode or Single Mode (850/1300/1550nm)
  • Multiple Diagnostic LEDs
  • Local & Remote Loopback Functions
  • Sturdy Compact Metal Case
  • High Temperature (-20C to 70C) Version Optional


The TC1200 is a 3-channel asynchronous RS-232 fiber optic modem that provides up to five bi-directional control (or handshake) signals (RTS, CTS, DTR, DSR and CD). It offers the versatility of linking three data communications devices over a single duplex fiber or one device with a bi-directional control. 

Compatible with both single and multimode fiber, it supports data rates up to 120 Kbps. Six Diagnostic indicators indicate power, electrical signal status and optic sync. It is a DCE device only and performs Local & Remote loopbacks (for diagnostics) with the flip of a switch. Because the TC1200 can also function as a 3-channel multiplexer by using the control signal channels as data channels, this benefit makes the TC1200 particularly cost effective.

An extreme temperature version (-20C to 70C), Model TC1200T, is also available.

TC1200 Specifications

Data Rates
  up to 120 Kbps
Transmitter LED/ELED
Receiver PIN
Wavelength 850nm/1300nm multimode
  1300nm singlemode
Fiber Optic connectors ST (FC or SMA optional)
Loss Budget 15dB multimode 850nm/1310nm @62.5um
  20dB single mode
1310nm @9um
Connector DB25 Female
Type RS232 DCE/DTE Switchable
Bit error rate 1 in l09 or better
Power source 12VDC @ 250mA
optional: 115 or 230VAC with external power cube
Operating -100C to 500C
Hi-Temp (optional) -20 to 70C
Storage -400C to 900C
Humidity 95% non-condensing
Stand Alone Unit Height (2.24 cm) 0.88"
  Width (10.16 cm) 4.1"
  Depth (7.87 cm) 3.1"
  Weight (198 gm) 7 oz.

Typical Application (Application Questions)

Typical applications include linking remote terminals or printers to host computers, tail circuits to existing multiplexers and extending data communications links. Fiber Optic Modems are also ideal for connecting data communications devices in harsh manufacturing or outdoor environments where EMI or RFI interference, ground loops and lightning are prevalent.