TC XXMSERIALControl systems for audio-visual and industrial applications use RS-232 which is a 2-way standard which allows the control system to send commands and receive feedback. RS-232 (and RS-485) uses serial cable which has 9-pin d-sub connectors which look like a VGA connector but instead of three rows of pins they only have two.

- 9-pin D-sub (female) to 9-pin D-sub (female)
- Colour: White
- Nickel-plated connectors
- Sheath: PVC, outer diameter: 5 mm (0.20″)
- Conductor thickness: 28 AWG
- Pins wired straight through (i.e. 1 to 1, 2 to 1, etc)
- Drain wire laid between aluminum mylar and braid
- Al-Mg alloy wire overall
- Shield: > 65% coverage braided shield
- Impedance: at 10 MHz, 75Ω (coaxial cable)
- Resistance 20℃(Ω/1000 m) 237.25