External isolation I/O modules for harsh environments

External Isolation I/O Modules
PCLD-8751external isolation I/O module has 48 isolated digital input channels, and PCLD-8761 has 24 relay channels and 24 isolated digital input channels. Both are designed to make connection with PCI-1751 and PCI-1753 TTL-level digital I/O boards directly and can be used in harsh environments. Both products&rsquo digital input channels have 3,500Vdc isolation protection, wide input range from 5 to 30V, and wet or dry contact setting through DIP switch selection.