Advantech ISA bus data acquisition and control card | digital input and output PCL-724 | 24 / No Power Products PCL-724 is a 24-channel digital input / output card, the card provides a 24-channel parallel digital input / output port . Simulation programmable parallel I / O interface chip mode 0 8255, with a 50-pin connector, pin definition is fully compatible with Opto-22 module. PCL-724 is particularly suitable for SSR I / O mode control. A first port 0 may generate an interrupt IRQ2 ~ 7. Features 1.24 TTL digital I / O interface 2. 0 3. Simulation 8255 PPI mode programmable interrupt handling 4.50 pin definition and Opto-22I / O modules are fully compatible with 1.3 specification 1. Input signal input logic level 1 specifications: 2.0 ~ 5.25V input logic level 0: 0.0V ~ 0.80V High Input Current: 20.0uA Low Input Current: -0.2mA 2, the output signal specifications High Output Current: -15.0mA low output current: 24.0mA output logic levels 1: 2.4V (minimum) output logic level 0: 0.4V (maximum) 3. Transfer rate: 300K bytes / sec (typ); 500K bytes / sec (max) 1.4 General Characteristics 1. Power: + 5V @ 0.5A (typical); + 5V @ 0.8A (maximum) 2. Operating Temperature: 0 ° ~ 60 ° C (32 ° ~ 140 ° F) 3. Storage Temperature: -20 ° ~ 70 ° C (- 4 ° ~ 158 ° F) 4. Operating Humidity: 5% ~ 95% RH, non-condensing 5. Interface: 50-pin ribbon cable connector 6. Dimensions: 125mm (L) * 100mm (H) fttilslli