The SNAP-PAC-RCK16 mounts one SNAP PAC brain or on-the-rack controller and up to 16 analog, digital, and serial SNAP I/O modules. Together, the rack, I/O, and processor form an I/O unit that provides distributed control in a SNAP PAC System. This I/O unit can also be used for PC-based control or as intelligent remote I/O for an Allen-Bradley MicroLogix, ControlLogix, or CompactLogix PLC system. This rack works with all SNAP I/O modules on the Opto 22 website. Modules can be mixed on the rack and placed in any position. Note that some serial modules are limited to a maximum of eight on one rack.
Underwriters Laboratory, IEC 950: 1991-09, 89/336/EEC, 2002/95/EC, Defense Federal Acquisition Regulation Supplement