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General| Brand | Nortel |
|---|---|
| Model | DMS-500 |
| Category | Security System |
| Language | English |
Details the main hardware components and alarm indication devices for OAS Version 1.
Details the main hardware components and alarm indication devices for OAS Version 2.
Describes the Office Alarm Unit (OAU) in OAS Version 2, including its shelf type.
Details the Alarm Control and Display (ACD) panel, its functions, and lamps.
Explains the dead system and OAU alarms specific to OAS Version 2.
Lists the enhancements and additional functions provided by the Enhanced Alarm System (EAS).
Details the main hardware components and alarm indication devices for the EAS.
Covers the activation and types of audible alarms and their panels in the EAS.
Describes visual alarm devices and manual controls provided by the OAS hardware in EAS.
Details the functions of the ACD panel with a common audible alarm in the EAS.
Lists the key features and improvements of the Low Power Alarm (LPA) system.
Introduces the hardware components of the LPA system.
Covers various types of alarms within the Office Alarm System.
Details the Enhanced Dead System Alarm, including detection of processing loss.
Explains dead system alarms occurring in a CCIS network.
Describes the hardware link between DSA and network management for overload control.
Explains how dead system alarms can be indicated remotely.
Details alarms originating from Power Distribution Centers (PDC), including ABS and PDC failures.
Describes circuits that detect low voltage and power loss conditions.
Details the circuit that detects loss of A or B power feeds from the PDC.
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