- Expandable up to 20 speaker control circuits
- Fire floor interlock mode key can be set from the panel
- Build-in PA zone selector function
- Each speaker zone includes dual-color LED indicator interlock mode and system malfunctions
- 1 blank label on each speaker circuit panel to mark the name or code of speaker circuit
- EEPROM method can be adopted together with the panel, once this unit power supply cut off will able saving memory for more than ten years
- Power requirement: 24V DC, 200mA
- Dimension: 442(W) x 89(H) x 35(D) mm