The Model ACT-34B 4-Channel Block Coded Key Ring Transmitter is
designed for use with Linear’s access control products. The Model
ACT-34B is a four-channel device supplied with a quick-disconnect key
ring. Also included are lithium batteries with a five-year service life.
A unique 10-second time-out feature prevents the system from being shut
down by a single transmitter transmitting continuously.
The transmitter is MegaCode format, which means each transmitter is
factory preprogrammed with one of over 1,000,000 codes, virtually
eliminating the possibility of code duplication. Because the receiver
”learns” each specific code, no unauthorized person can gain access to
the system by reprogramming a transmitter.
Block coded transmitters are factory programmed to a sequential
series of transmitter ID codes. When used with a Linear access
controller, transmitters can be locally or remotely programmed into
memory by entering the first and last codes of the block into the
system. Facility codes can be selected to further customize the system.