HHTraff works with any traffic signal controller exposing a text-based RS-232 serial maintenance port.
Developed and field-tested on ATSC4-generation (TSC/4 specification) hardware: Aldridge ATSC4, Tyco Eclipse and QTC — the controllers behind most signalised intersections in New Zealand and Australia, including SCATS-coordinated networks. SWARCO ITC-3 is also supported.
Controllers with a serial maintenance port that we have not yet verified: TOPAS 2500B, TR 2500 and MCE 0141 in the UK; NEMA TS2, Peek ATC-1000, McCain and Econolite in the US and Canada. These may work — we simply have not confirmed them.
See also: Cable setup, Terminal commands, and about HHTraff.