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Linear MegaCode MDR/U Universal Receiver
The Model MDR/U 1-Channel Plug-in Receiver is a versatile (universal) receiver that makes it very easy to equip nearly any garage door operator for use with Linear’s popular MegaCode format transmitters. MegaCode uses a frequency of 318 MHz and features over one million radio codes to all but eliminate any possibility of code duplication. It offers simplified programming via the receiver’s learn mode. Previously, when installers wanted to add MegaCode capability to a garage door operator that did not come already outfitted with a MegaCode receiver, they had to use Linear’s MDR receiver in combination with a power transformer. The MDR/U replaces the MDR and plugs directly into any electrical outlet. All that is required is running a single two-conductor wire from the MDR/U to the operator’s push-button input. The MDR/U has one normally open contact output. It can be used to send a remote control signal from up to 10 MegaCode transmitters. A learn mode dramatically simplifies programming to just a button press.
| Standard Features | • Makes any garage door operator compatible with MegaCode transmitters • Simple plug-in design • Easy to install - one connection using two-conductor wire • Learn Mode with 10-Transmitter Capacity • Normally open contact activates for 0.5 seconds |
| Power | 110 VAC 60 Hz |
| Buttons | One Button |
| Frequency | 318MHz |
| Channel | One |
| Codes | 1 Million Plus |
| Dimensions | 2.52"W x 2.5"H x 1.61"D |
| Warranty | 1-Year |
| Brochures | prod_brochures/linear/mdr-u.pdf |
Radio Remotes
Radio remotes come in standard size or key fob style. Both types offer single or multiple buttons that can open more than one gate or door. When ordering your wireless transmitter and receiver you have an opportunity to use one device to operate your gate and garage door. You may want to order a receiver and transmitter made by the same manufacturer as your garage door opener to consolidate the number of remotes you own.
Coded radio remotes are remotes that contain a unique code (similar to a card reader code). This type of remote offers a higher level of security. Individual transmitters can be added or deleted from the system. If a transmitter is lost, it can quickly be deleted to help maintain security.
