Product Description:

The 105-09598-01 motion control card is produced by Pacific Scientific for the 105 Motion Control Cards series. Designed for the Opto 22 Generation 4 rack family, it provides a digital interface that lets the main processor address external sensors, relays, and drive-enable lines through isolated logic points. In an automation system, the board translates controller commands into reliable on-off signals and returns status feedback with tight timing accuracy.

Signals exit the card through a 25-contact male D-Sub connector, and field wiring follows a pin-to-pin convention that simplifies harness construction. An internal RC network imposes a 100 µs filter time constant that screens out switch bounce before the microcontroller latches the input level. Logic receivers register a low when the input falls below 1.0 V, while a high is recognized at 3.5 V or above, which provides a useful noise margin between states. The backplane can accept up to 21 modules, allowing larger installations to expand I/O density without using additional controller slots. Each input channel is tied to a 10 kΩ pull-up resistor referenced to the user rail, and the outputs use open-drain DMOS devices for mixed-voltage sinking duties.

For load control, every output stage can sink up to 100 mA continuously, which is suitable for solenoids or indicator lamps without auxiliary relays. The logic circuitry and pull-up network draw power from a regulated 5 V ±5% source, and total board consumption remains under the 200 mA ceiling stated for user current. Field voltages applied to the connector must not exceed 40 V, because staying within that limit protects the semiconductor junctions from avalanche damage. This operating limit also helps preserve reliable switching performance across every expansion module connected to the 105-series bus.