Model 7000 clock-single zone bell ringer 7000 Single 24 VDC circuit directly powers up to 15 bells, BCD signal for 50 system clocks (200+ w/booster), RJ-45 connection, 3 button set-up Model 7024 DC clock-multi zone bell ringer 7024 (4) 24 VDC (supplied) bell circuits-powers up to 15 bells total; serial computer connector, “Y” connector, 50’ cable, software and 7000 master clock Model 7110 AC clock-multi zone bell ringer 7110 (4) 0-220 VAC relays, 10 amps per circuit, up to 50 bells per zone, serial
