Simulation panel, word tester, and miniature direct wired testbox, used with TOSBAC (Toshiba Scientific and Business Computer) computer system, metal / plastic / electronic components, made by Toshiba Corporation, Tokyo, Japan, 1983, used by Transgrid NSW, Australia, 1985-2003
The simulation panel has a metal case, five rows of toggle switches (ninety switches in all), three rows of which have LED lights above them (red above, green below), and twenty four dials set toward the front of the unit. The rear of the unit has four large serial port connections.
The word tester unit has a black metal casing with a silver metal plate on the top face. There are eight rebates cut into the metal plate in which sit eight toggle switches with an LED light above them all with unique testing functions. There is a data transfer cable leading into the top right corner that connects to a computer. There is also a power cable at the rear of the unit. This piece of equipment was used to test the programs of the TOSBAC computer.
The testbox is a one-off that was built to test the functionality of the Miniature Direct Wired (MDW) controls which interface between the DAC system and the HV switchgear. The MDW has relay based logic with the operator interface provided on a mosaic panel, originally located in the control room. M.O.I. - motor operated isolator. It was used by Transgrid engineer Colin Handel.
Simulation panel: SIMULATION PANEL; Control & return; Single indication; Pulse accumulator; Analogue
Message word tester: MESSAGE WORD TESTER for TCM and TCR; Functions; Mode code; Group add; Section A; Word add; Section B