The Linear ACT-31B MegaCode Single-Channel Block Coded Key Chain Remote (part no. ACP00879) is a one-button transmitter designed for operating compatible gate operators, garage door openers, and access control receivers that use Linear’s MegaCode 318 MHz radio format. As a “block coded” remote, it is factory-programmed with a facility code and unique transmitter ID, making it ideal for managed residential communities and commercial sites where credentials are issued and tracked by the property or security administrator. It transmits on 318 MHz using Linear’s MegaCode technology (each transmitter has a unique, factory-set code), and it is learned directly into the receiver or enrolled into an access control system by ID, depending on the site’s programming method.
This single-channel keychain remote is commonly used as a replacement or upgrade for systems built around Linear MegaCode receivers and controllers, including popular gate and garage receivers such as the MDR/MGR series and access platforms like the AP-5 and AE series that support block-coded enrollment. Typical programming is completed by placing the receiver into learn mode and pressing the button on the remote; for enterprise-style deployments, the transmitter’s printed ID is entered into the access control software/database. For best results, use only with 318 MHz Linear MegaCode equipment; it is not compatible with Delta-3, Multi-Code 300 MHz, Security+ or other formats. Always enroll remotes to authorized receivers and follow site security policies to prevent unauthorized access.