The Allstar 107476 9 Door OCS Stationary Transmitter (model 639T) is a fixed, multi-door radio control console designed for commercial and industrial overhead door and gate applications. OCS stands for Open/Close/Stop, and this transmitter provides dedicated pushbuttons for each function on up to nine separate doors, making it ideal for guard shacks, security desks, shipping/receiving areas, and attended stations where multiple operators must be managed from a single location. As a stationary transmitter, it communicates wirelessly to compatible Allstar OCS radio receivers installed at each operator, providing reliable remote control without running long control wires across a facility.
Used as a replacement part or upgrade for Allstar/Allister commercial systems, the 639T is typically paired at the receiver for each door, with each O/C/S set enrolled as required by the receiver’s learn or code-setting method. It is intended for indoor, attended use and should be installed and programmed according to the operator and receiver documentation to comply with UL 325 and local safety requirements; ensure proper entrapment protection devices are in place and maintain line-of-sight supervision when operating doors. For system compatibility, match this transmitter to the corresponding Allstar OCS radio system specified for your operators and receivers. Common search terms include Allstar 639T, Allstar 107476, OCS stationary transmitter, 9 door transmitter, commercial garage door control, and replacement OCS console.