Product Details:

INTERFACE PCI-2752C is a PCI bus TTL digital input and output board from Interface Corporation, and this ttl dio board carries 32 channels of 5V TTL Schmidt trigger input and 32 channels of open collector output with pull-up resistors, supporting handshake synchronous transmission and latch capture for automated test fixture and equipment control systems. It integrates onboard timer-counter circuit, which can be used as interval timer for pulse generation and timing trigger. The input channels support software switchable mode, users can select normal through input or latch input, all input signals can be captured simultaneously by external strobe signal. It also supports external reset signal input and reset signal output for interlock coordination with peripheral devices. It is widely used for electronic component functional test, relay matrix switching, packaging machine sequence control, sensor status reading, educational logic experiment and legacy industrial control system renovation. Developers can use the official driver and SDK to configure latch mode, handshake timing and timer parameters, to realize stable synchronous data exchange for interval timer synchronous i/o tasks.

Key specifications and parameters: 32 TTL Schmidt digital input channels, 32 open collector output channels with 4.7kΩ pull-up resistor. Non-isolated 5V TTL logic level. Input response time typical 0.1μs, maximum output sink current per channel 100mA. Built-in timer counter, dedicated strobe, external reset I/O signals. It complies with standard PCI specification, powered by PCI slot +5V supply. External signal interface adopts high-density connector, compatible with matching cables and terminal blocks for tidy wiring. The operating temperature range is 0 ℃ to 55 ℃, storage temperature -20 ℃ to 70 ℃, 10%–90% non-condensing humidity. Status LEDs indicate bus communication and trigger state, helping technicians locate faults quickly during commissioning. The latch function ensures synchronous snapshot of all input channels when the strobe arrives, avoiding asynchronous sampling error.

This open collector output latch board is an end-of-life legacy hardware. We supply fully inspected and tested refurbished units for replacement and maintenance of old digital control and ATE systems. It can be matched with signal conditioning modules, relay terminals and DAQ acquisition cards to build complete stimulus-response test platforms. It is widely adopted in electronics manufacturing test stations, university automation labs, small machinery control cabinets and legacy automated inspection systems. As a compact 32/32 TTL DIO card, it provides reliable parallel signal switching and timing control for long-running industrial automation projects.