☆ GST-DP is the Distributed Panels in the system. All GST-DP are connected to a master panel via RS485 line and provide the supervised 25V or 70V speaker circuit and fire phone circuits on the fields.
    ☆ Each GST-DP is powered individually and with backup battery.
    ☆ GST provides 4 basic models:
            GST-DPS50, single channel, 50W
            GST-DP50, dual channel, 50W
            GST-DPS100, single channel, 100W
            GST-DP100, dual channel, 100W
    ☆ All these models have 4 class B circuits, and do not have the fire phone option.
    ☆ All these models can be expanded for 4 to 16 fire phone circuits. 4 class A or 8 class B speaker circuit.

Technical Specifications

    ☆ Communications: RS-485 Standard, 1M Baud rate
    ☆ Primary Supply: 220VAC
    ☆ Backup Battery: 7AH/24VDC(GST-MP), 17AH/24VDC(GST-DP)
    ☆ Electrical Ratings: All Circuits @ 24VDC
    ☆ End of Line Resister: 10kΩ
    ☆ Maximum Cable Length: 4,000 feet, #16 AWG, between panels, 50,000 feet in the overall system.
    ☆ Recommended Cable: 16 or 18 AWG, (Low Capacitance) UTP Unshielded-Twisted pair.

Configuration

System Diagram