This controller comprises a microprocessor board based on a 16F84 microcontroller chip. Forty-eight volts DC from the power supply was fed to a simple 24 volt stabilising circuit. The 24 volts were used for the coin acceptor and was further regulated to 5 volts in the IC1. The 48 volt power source was also used to run the solenoid in the turnstile as well as the relay RE1 and fed the card reader.
The manual comprises four A4 pages stapled together and is entitled "Manual Turnstile Controller Board".