The ADA-11 receiver module is a new smaller size unit that has a switch selectable address and mounts in a snap-in holder. It is used in applications where secure control of remote loads such as door strikes are required. Up to 16 ADA-11 receivers can be multi-dropped from one card reader. The sender in the card reader encodes the control information into a digital data stream which is decoded by the ADA-11 modules. Each receiver module must recognize its unique address before switching its electrical load. Up to 16 unique addresses are sent to the ADA-11. In most access control systems the wiring between the door strike and the card reader or controller is vulnerable to attack. An intruder need only apply a voltage or ground at this point to control the strike. The ADA-11 prevents operation of the door in this fashion, since an encoded digital signal is required to control the strike. A requirement of UL 294 states that even in the event of a physical attack on the card reader, exposing internal wiring, an intruder cannot control the strike by access to the internal card reader wiring,. The ADA-11 can be mounted in a protected area near the strike with only the digital encoded signal going to the strike location. Thus control of the strike is removed from the reader and protected between the access controller and the strike. The design of the ADA-11 module allows easy retrofit of existing installations. These small units can be mounted in the door frame behind or adjacent to the door strike. The unit address for the receiver is field configurable by use of its DIP switch. The ADA-11 receiver connects directly to the output of most APOLLO card readers.

FEATURES:

SENDER (Built into the card readers):

• Output: continuous digital data stream, current loop
• Distance to receiver: up to 1000 feet (300m)
• Cable: Single twisted pair, 20-22 AWG