781-ZB Series Annunciator Systems

FEATURES

Audible sounds when any door opens.

Individual door lamp illuminates on display and bypass panel when any door opens.

Can connect up to three display and bypass panels.

Manual push-button system reset switch.

Door bypass switch for each door.

Door bypass keyswitch for authorized personnel only.

Flashing LED lamp when sensor is bypassed.

7-Ampere hour battery backup.

Accepts either normally open or normally closed door contacts.

The 781-ZB door annunciator system comes completely wired for operation. Installation is a matter of connecting the door sensors and the 770-LT remote display and bypass panel to the processor board. The system comes with power supply and a backup battery. A power transformer is supplied which must be inserted into an 120V 60Hz unswitchable electrical outlet. Either normally open or normally closed door contacts can be used.

The remote display and bypass panel comprises combination lamps and push-button switches, a piezo audible sounder, a bypass inhibit keyswitch and a reset lamp and reset push-button switch, all mounted on a brushed stainless steel plate. Each lamp represents one door and displays the status of that specific door. When a door is open and remains open the lamp for that door illuminates and remains illuminated. When a door closes the lamp for that door extinguishes and remains extinguished as long as the door is closed. Each lamp is also a push-button switch for the bypass function. When a push-button is depressed, the lamp for that door constantly flashes indicating that door is out of service. The keyswitch on the panel is used to inhibit the bypass mode to prohibit unauthorized personnel from bypassing any of the doors. The audible piezo sounds when a door opens and remains sounding until the door is closed. A mode is possible when a door opens and closes again, the lamp remains illuminated and the audible piezo remains sounding until manually reset by attending personnel. When reset, the audible stops sounding and the lamp indicates the true status of the door. A popular application is for nurse stations in care center complexes.

708 CONTACT OUTPUT PER ZONE MODULE

Eight Zone Module
Removable Terminal Strips
SPDT Contact Output per Zone
LED per Output Relay

The 708 provides an SPDT relay contact output per zone. These outputs can be used to trip digital communicators, energize large relays to turn on lights, sound horns, trip CCTV, etc. Two options to trigger the individual output relay contacts are possible. Triggering can occur only when the associated control instrument panel is armed, or on a 24 hour basis on any zone. An LED per output relay illuminates whenever a relay is energized.

All zones are programmed independently for the mode the installer chooses.