KEYSCAN CA4500NB 4 Reader/Door Control Unit, No Enclosure

The KEYSCAN CA4500NB is a 4 reader and door control unit without a metal enclosure. It includes a CA4500B PC109X ACU main board, an OCB8 relay board (PC110X) connected by a 21-inch ribbon cable, and a DPS-15 power supply.

This unit requires two 16 V AC transformers rated at 37 or 40 VA, plus a 12 V 7Ah battery for backup. It supports up to 32,000 cards, 4 card readers or keypads, 4 auxiliary outputs, and 16 auxiliary inputs.

All inputs on the ACU board can be supervised with end-of-line resistors. For installation details, see the ACU pre-installation reference guide included at the end of the price list.