In some larger installations, the MDS-6A can be installed with more than one pair of speakers per room. For maximum output power, each pair of speakers is wired to an individual speaker zone output on the MDS-6A. In these types of installations, it is desirable to control multiple MDS-6A speaker zones from a single keypad. From two to six speaker zones can be controlled from a single keypad. In addition, instead of a single keypad, two keypads can be used in parallel to control the multiple speaker zones.
Linear’s OpenHouse® Model H628 Cat-5 Data Hub can be used to bridge the MDS-6A keypad zone inputs to allow the control of multiple speaker zones from a single keypad. The H628 is an RJ-45 to Cat-5 patch panel that can be mounted in a structured wiring grid cabinet or used independently.
Refer to the figure below for wiring details.
* NOTE: Zone 1 is used as an example, any zone can be used for the shared keypad’s zone.