RM31A is a 19” 2U rack mount digital audio repeater system designed for general purpose applications. Up to 12 sound cards can be installed into the chasis and operated independently. The sound card (model DM31A) is similar to the one used in EM31AR, with minor physical differences. Please refer to EM31AR’s page for more information on the technical specifications.

Sync-a-Gang TechnologyTM The system runs all cards inside with a master clock and keeps them in perfect synchronization with each other for however long the file playback lasts - a crucial requirement in many applications.

Other than the master clock, the cards operate totally independently with each other. Each card has its own input and output. For your convenience, the chasis also provides a common connector for the RS-485 interface.

RM31A has a built-in 110/220 VAC auto switching power supply with a detachable power cord. The two mounting brackets can be removed if the system is not to be rack mounted. Physical dimensions are 17.3” (L) x 7” (W) x 3.5” (H) without the mounting brackets.

*  19” 2U rack mount digital audio repeater
*  Up to 12 sound cards per system
*  Each board operates independently
*  Master clock keeps all cards in perfect sync
*  Stereo CD quality MP3/WAV playback
*  1 trigger input & 1 relay output per card
*  Supports CF cards up to 2 GB per card
*  110/220 VAC auto switching
*  RS-485 interface