Designed Security, Inc. (DSI).The ES621 is an 8 Zone Annunciator that can be used to monitor the status of a N/C dry contact input. The unit fits in a 2-gange standard electrical box. If an Input Zone is violated, the corresponding Zone LED will flash, and the (N/O) Global Alarm Output will change state. The Audible alarm will sound until acknowledged by pressing the ACK button.
Shunt Switches are provided to bypass each zone. LED goes Green when in Shunt/Bypass mode. Supervised Input circuits are provided to monitor for tampering of the input connection and to annunciate a Tamper condition with an Audible Alarm and Amber LED. Multi-Zone Annunciators provide an efficient means of displaying the condition of security devices throughout a monitored facility. Features of this products are Zone Shunt. Enables the user to shunt (or bypass) any selected zone. The bi-color zone LED illuminates green when shunted. All un-shunted zones operate normally