Single or Multisource Modes
The AB-124 can be used in two different modes: 1) single source mode, 2) multi-source mode. Mode selection is controlled by a jumper setting prior to installation. When using the AB-124 with a single-source CAT5 audio hub, it should be set for the single-source mode. In this mode, the unit provides basic controls: volume up, volume down, and power on/off. When using it with a multi-source CAT5 audio matrix, it should be set for multi-source mode. In this mode, any zone can independently select and listen to any source at any time. Source selection can be done either from the AB-124 amplified keypad or by using the A0501 remote control.
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