Chapter 6 - Alarm Operations; Operations; Alarm Mechanical Alarms - American Dynamics Intellex Intellex LT Installation And Operating Instructions Manual

Installation and Operating Instructions
Chapter 6 — Alarm Operations
ALARM

OPERATIONS

Mechanical Alarms
Alarm Operations
The Intellex unit detects and responds to four types of alarm events:
• Mechanical Alarms
• Live Filter Events
• Video Loss Alarms
• Generated Alarms
NOTE: The unit only processes alarm events for cameras that
are being recorded when the alarm occurs.
A mechanical alarm occurs when there is a contact closure or
polarity change at any alarm input.
The alarm connector provides one alarm input and one alarm
output for each camera. The inputs can be connected to any device
equipped with either a contact closure or TTL/CMOS standard
output. The outputs can be connected to any device, and can
operate as a contact closure or TTL/CMOS standard device.
Alarm input polarity can be set to either Active-Low or Active-
High (see Alarms Setup
automatically set to a low (inactive) state when starting up the
system.
When the unit detects a mechanical alarm:
1. The unit energizes the alarm output associated with the
camera.
2. The unit records images from the alarm camera at the alarm
record rate and quality setting (see
3. The unit adds the alarm camera to the alarm group and
records its images more often than nonalarm cameras (see
Alarm Groups on page 147).
4. The unit lights the Alarms indicator as soon as the alarm is
cleared.
5. The unit flags the video segment in the image database with
the name of the alarm input.
on page 141
on page 143
on page 144
on page 145
on page 78). All alarm outputs are
Alarms Setup
141
on page 78).