® 48-Line Opto-Isolated Output Electronic Data Sheet WinSystems STD Bus Boards MCM-OUT48 * Supports 48 digital outputs * Each line has an open collector transistor with: - Diode clamp for inductive spikes from relays - 100mA sink current with Darlington array - 30V high-level interface voltage - Optical isolation for each output * Each line has output with readback * Dual 50-pin header connectors * STD Bus and CMOS STD Bus interface * +5 volt only operation * Optional extended temperature operation: -40° to +85°C FUNCTIONAL CAPABILITY SPECIFICATIONS WinSystems’ MCM-OUT48 is a 48-line, Electrical WS16C148 OUT48 I/O controller ASIC. relay driver card for the STD Bus. Its Input isolation voltage = 1500 volts The 48 lines are addressed as 6 contiguous medium voltage and current output capa- LPM-OUT48 Vcc = +5v @ 12mA typ. ports. bility combined with diode clamping, MCM-OUT48 Vcc = +5v @ 120mA typ. makes it well suited for driving relays, Opto Isolation - Each output line is opti- lamps, or medium current loads. The on- Mechanical cally isolated from the bus interface circuits. board resets all the output lines to deener- Dimensions: 4.5” x 6.5” A separate isolated ground and supply volt- gize relays upon either power-up or PBRE- age path is provided. The isolation voltage SET to initialize the board to a known sta- Connectors rating between the input and output of the tus. Digital I/O: Two 50-pin dual 0.100” grid photocoupler device exceeds 1500V. STD Bus: 56-pin dual 0.125 inch center Bus Interface - Available in both STD Each output has a NPN Darlington transis- Bus and CMOS STD Bus interfaces, the Environmental tor pair with an integral diode clamp capa- units are designated with the MCM or LPM CMOS STD Bus: -40º to +85º C ble of sinking 100mA of current required prefix respectively. CMOS logic offers a STD Bus: 0º to +65º C by most relays. This allows direct control different bus interface, with lower power of up to 48 relays with a signal MCM- requirements and extended operational OUT48 card for high-density I/O support. temperature range. I/O Connectors - The output lines are Contact WinSystems for a Digital Output Circuit - Each digital wired to two, 50-pin connectors. Each COMPLETE data sheet and output line on the LPM/MCM-OUT48 is connector has 24 data lines alternated with wired in series from the WinSystems’ ordering information. 24 ground lines. The connector pin-out is 16C148 I/O controller ASIC to a photo- compatible with the standard 4- to 24-posi- coupler and then to a NPN Darlington tion I/O module mounting racks from pair. Opto-22, etc. WinSystems is a registered trademark of WinSystems, Inc. Product names of other companies may be trademarks of their respective com- panies. All information is subject to change without notice. ASIC - These units support 48 latched output lines with WinSystems’ WinSystems, Inc. / 715 Stadium Drive / Arlington, Texas 76011 / (817)274-7553 / E-mail: info@winsystems.com