Editing Terminal node controller (section)

==TNC/Radio data ports==
{{Unreferenced section|date=September 2016}}
Although typically described as data ports, the interface between a radio and a TNC is almost entirely analog audio (plus lines for PTT and [[squelch]]). The connectors used for this purpose vary widely across TNC manufacturers, but modern radios that offer data ports have widely adopted the [[Mini-DIN]] 6-pin connector. 

Also used are full-size DIN connectors, DE-9 ([[D-subminiature|D-sub]]) connectors,<ref>{{Cite web |title=TARPN -- NinoTNC info for Builders |url=https://tarpn.net/t/nino-tnc/nino-tnc.html |access-date=2024-09-01 |website=tarpn.net}}</ref> modular telephone (RJ) connectors, and combinations of mini- and micro-headphone connectors (typically on handheld radios).
* 6-pin Mini-DIN