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OpenTNC Cable

OpenTNC Cable

By NA6D

Regular price $20.00 USD
Regular price Sale price $20.00 USD
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This high-quality, standalone radio interface cable connects your TNC to your transceiver. Featuring a standard DB9 connector on the TNC side, these cables are wired to match the classic Kantronics pinout. They serve as a direct replacement or expansion cable for the OpenTNC, as well as a cost-effective, high-reliability alternative for Kantronics and other compatible TNCs.

Available Variants

  • Mini-DIN 6: Connects to the data port of most modern mobile transceivers.
  • Kenwood K1: Connects to standard handheld transceivers (HTs) utilizing the common 2-pin K1 configuration.

Technical Specifications

  • Length: 60 cm
  • Jacket Material: Flexible, durable Thermoplastic Elastomer (TPE)
  • Shielding: Dual-shielded (foil and braided shield) explicitly engineered to mitigate RF ingress and prevent common mode noise from degrading data packet transmission.
  • TNC Interface: DB9 male (OpenTNC pinout, Kantronics-compatible)

Ensure your specific TNC equipment shares the Kantronics DB9 wiring standard before using this cable with non-NA6D hardware.

Pinout Reference

 DE9 Pin (TNC) Signal Mini-DIN6 Pin (Radio Data Port)
Pin 1 TX Audio Pin 1 (Audio in to Radio)
Pin 2 Squelch Open Pin 6
Pin 3 PTT Pin 3
Pin 5 RX Audio Pin 5 (De-emphasized 1200 Baud Audio)
Pin 6 Ground Pin 2
Pin 4, 7-9 Unconnected Pin 4

 

 DE9 Pin (TNC) Signal K1 HT Plug
Pin 1 TX Audio 3.5mm Ring
Pin 3 PTT 3.5mm Sleeve
Pin 5 RX Audio 2.5mm Tip
Pin 6 Ground 2.5mm Sleeve
Pin 2, 4, 7-9 Unconnected 3.5mm Tip, 2.5mm Ring
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