Rail traffic in the Strathfield area has been controlled from Strathfield signal box, which is actually situated at Homebush, since 1983. Signalling at Strathfield is controlled by an entrance-exit (NX) route control panel with an early automatic route setting (ARS) system, which was manufactured by Westinghouse in the United Kingdom. This system is connected to double light colour light signals and electro-pneumatic switch machines on the ground. The 1926-vintage power box, which had a Westinghouse miniature lever frame, still stands to the west end of platform 8.