Honeywell 621-9930 High-Speed Parallel I/O Module for Automation
Description
TheHoneywell 621-9930is a versatileParallel I/O Module (PIOM)designed forIPC 620control systems. It provides a critical link between theprocessor rackand otherI/O racksin parallel configurations. This module decodesI/O address datafrom theCentral Processor Module (CPM)and generatescard selectsfor I/O modules.