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Multi-Interface Fiber Optic Data Multiplexer (8/16 ch)

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The TC8116 Serial Data Fiber Optic Multiplexer is an inexpensive method to connect asynchronous & synchronous terminals, printers, & status collecting devices.

The TC8116 fiber optic multiplexer multiplexes RS-232, RS-422, RS-485 (2 or 4 wire), TTL & Dry Contact Closure interfaces. It is available in 8 or 16 channel versions, each with or without Control/Handshaking.

  • Mix or Match Field-Interchangeable Interfaces: RS-232, RS-422, RS-485, TTL, & Dry Contact Relays
  • Data Rates up to 38.4 Kbps*
  • Built-In Power Redundancy
  • Optional Optical Redundancy
  • Local Dry Contact Relay Alarm
  • Built-In Test Signal Generator
  • Local & Remote Loopback
  • Multimode or Single Mode (850/1300/1550nm)
  • Hardened Temperature Version (optional)


The TC8116 Fiber Optic Multiplexer provides a flexible, inexpensive method for connecting async/sync terminals, printers, and status collecting devices. It is also used in harsh environments where EMI/RFI interference, ground loops and lightning conditions may exist.
TC8116 - 8/16 Channel Fiber Optic Data Multiplexer
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Data Rates
  1. Per ChannelUp to 38.4 Kbps
Channel Capacity
  1. Async8 or 16
  2. Sync (RS-232 only)8 or 16
  1. TransmitterLED/ELED
  2. ReceiverPIN Diode
  3. Wavelength850/1300nm MM, 1300/1550nm SM
  4. Fiber Optic ConnectorsST, Optional FC
  5. Loss Budget * - 850/1300/1550nm
  6. Multimode @ 62.5/125µm15dB
  7. Single Mode @ 9/125µm20dB
Visual Indicators
  1. Channel Status (each ch.)Tx, Rx
  2. SystemPWR A, PWR B, VccA, VccB, ALM
  3. OpticSYNC, RxA, RxB, USE RxA, Use RxB, OPTIC TxB, OPTIC RxB
  4. Enable Anti-Streaming (TC2801)Yes (TC2801)
  1. Bit Error Rate1 in 109 or better
  1. ConnectorRJ11 Female
  2. Interface (standard)RS-232
  3. Interface (optional)TTL, 2 or 4-wire RS-485, RS-422 and Dry Contact Relay, or any combination*
  1. Dry ContactNormal OPEN
  1. Standard12VDC @400mA
  2. Optional24VDC, -48VDC, or 115/230VAC w/ ext power cube
  1. Operating-10°C to 50°C
  2. Hi-Temp (optional)-20°C to 70°C
  3. Storage-40°C to 90°C
  4. Humidity95% non-condensing
Physical (Standalone Unit)
  1. Height(6.71 cm) 2.64"
  2. Width(18.13 cm) 7.14"
  3. Depth(24.89 cm) 9.80"
  4. Weight(1.36 kg) 3 lbs
* Contact factory for higher requirements


For more information

Product version may differ from current manual. For assistance or proper manual version please contact Technical Support.