HHTraff Cable Setup — FTDI, USB OTG

HHTraff Cable & Adapter Setup GuideCable selection and setup for connecting an Android device to traffic signal controllers, by region. Always look for the FTDI FT232R chipset — avoid cheap CH340 clones and "FTDI-compatible" parts. USB-A cables also need a USB-C OTG adapter that supports data, not just charging.Quick reference

New Zealand and Australia (ATSC4, ATC, Tyco, Eclipse, QTC, SWARCO): 9600-8N1, DB9 male, no flow control. USB-to-DB9 RS-232 (FTDI), null modem / cross-wired.

UK and Europe (TOPAS 2500B, UTC, SCOOT): 9600-7E1, DB25 female, no flow control. USB-to-DB25 RS-232 (FTDI).

North America (NEMA TS2, Peek ATC-1000): 9600-8N1, DB9 female, no flow control. USB-to-DB9 RS-232 (FTDI).

See also: Quick start, Troubleshooting, and about HHTraff.