It’s a wall remote control device to control the ARM-911A’s first 4 audio sources in a remote location by synchronizing with the ARM-911A. It connects to the RM contact port of ARM-911A, and uses the RS-422 communication method. By pushing any of the 4 different buttons on the front panel, users can control the first 4 audio sources remotely.
• Connect up to 4 x LM-911A or 4 Paging MIC RM-911A on your ARM-911A
• Dimensions (W×H×D) : 114×70×50 mm
• Poids : 123 g