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Diamond Point International

Connect Tech ComSync/104 - Two Port Synchronous PC/104 Serial Card

RS-232, RS-422, RS-449 Support, Up To 4.9Mbps Per Channel


This two-channel, multi-protocol serial adapter for the PC/104 bus offers reliable, synchronous or asynchronous serial communications for your most demanding applications. The ComSync/104 offers the flexibility of choosing from multiple electrical interfaces, protocols and encoding schemes to ensure your hardware/software solution is ideally suited to your situation.

Register Bit Cloning and programmable security options add convenience to the full list of ComSync/104 features. The extended temperature model ensures your communications will continue under less-than-desirable circumstances.

Features and Benefits

  • Flexibility: Choice of seven software programmable electrical interfaces (RS-232, RS-422, RS-449, EIA-530, EIA-530/A, V.35 and X.21).
  • Speed: Achieve rapid data transfer rates up to 4.9 Mbps per channel.
  • Performance: A 20 MHz Zilog 85230 ESCC controls each channel.
  • Adaptability: Supports four software programmable DMA channels, and offers programmable bit rates with different oscillators available for custom bit rates. Also supports a wide range of third party applications and hardware/software tools.
  • Industrial Temperature Range: The extended temperature model can operate between extremes of -40 to 85 degrees Celsius (-40 to 185 degrees Fahrenheit).



InterfacePorts: 2 synchronous/asynchronous serial channels
Electrical Interface: RS-232, RS-422, RS-449, EIA-530, EIA-530/A, V.35, X.21
Protocols: HDLC, SDLC, MonoSync, BiSync, Async
Encoding: FM1, FM0, NRZ, NRZI
High Performance: Support for four software programmable DMA channels
Control Signals: TX ±, RX ±, DCD ±, RTS ±, CTS ±, DSR ±, DTR ±, SYNC ±, TRxC ±, RTxC ±
Serial Clocks: Internal or external
Bit Rates: Programmable bit rate generator, up to 4.9 Mbps (different oscillators available for custom bit rates)
I/O Addresses:
• Eight pre-defined sets of I/O addresses are DIP switch selectable in two modes:
• Basic: requires eight consecutive addresses
• Enhanced: requires 64 consecutive addresses
Interrupts: Software selectable for IRQs 3, 5, 7, 9, 10, 11, 12, 15
OtherCommunication Controller:
• 20 MHz Zilog 85230 ESCC
• 16 MHz Zilog 85230 ESCC extended temperature model
Connector(s)26 pin header connectors (optional ribbon cables with female 26 pin IDC to female DB-25 connectors available)


ExpansionStandard 16 bit PC/104 interface
8-bit and 16-bit bus stack through headers are installed
Electrical+5VDC ±5%
190 to 660 mA (typ)
MechanicalWidth: 96 mm x 90 mm, 3.55" x 3.775"
Conformal CoatingOn request
SoftwareThird party Zilog 85230 compatible applications and development tools
TemperatureTemperature range (operation: CSG001 or CSG001-01): 0°C to +60°C
Temperature range (operation: CSG005 or CSG005-01): -40°C to +85°C
Temperature range (storage): -40°C to +150°C
Humidity95%, non-condensing

Ordering Details

ComSync/104, 2 port synchronous PC/104 multi- protocol, RoHS

ComSync/104, 2 port synchronous PC/104 multi-protocol, 26 pin to DB-25 cable, RoHS

ComSync/104 with -40 to +85 degrees celsius temperature range, RoHS

ComSync/104 with -40 to +85 degrees celsius temperature range, includes cables, RoHS
Order Online Connect Tech ComSync/104 - Order Online