69902 ZP3AB-OP24 Output Auxiliary BoardThe ZP3AB OP24 is one of a series of additional, auxiliary boards designed to extend the ZP3 panel standard range of input output facilities. Boards are modular in design, and are mounted inside teh ZP3 panel enclosure, by means of a ZP3 AC1 auxiliary chassis. Up to three boards can be fitted into a ZP3 panel. They may be all of a single type, or any combination from the I O module range. The addition of auxiliary boards can increase the panel outputs