Baxall ZMX/BD/10, Operating Instructions Manual

Page: 52 / 111

HBZMXSIB/10/16SD-PR-1 Page 51
Timed out alarms can be cleared by the operator at any time by pressing the ALARM
key
. Like latched alarms, if the operator cancels the alarm, it will be cleared
whether the alarm input is still active or not. Alarms that are cleared by the operator
before their inputs have ceased, will not be reactivated until the alarm input ceases
and restarts.
Alarms are active only while the alarm input is active. As soon as the alarm input
ceases, the alarm will be automatically cleared. A Transparent alarm cannot be
cleared by the operator, it will remain active as long as the corresponding alarm input
is active.
Application Note
If it is necessary for the operator to be able to clear active alarms, and
Transparent mode is preferred, then select timed-out alarms instead of
transparent alarms in the Alarm Latching sub-menu, and set the time-out period to
one second.
Alarms that have been acknowledged by the operator will not be reactivated unless
the alarm input has ceased and then restarts.
Alarm Outputs
Two outputs are provided to enable you to program automatic external actions such
as a speed change on the VCR, or alarm lights or sirens. The relay outputs are rated
at 30v 500 mA. Alarms always activate Relay 1.
They are provided in both the normally open (NO) and normally closed (NC)
configuration on the rear panel of the unit.
The alarm outputs can be activated by motion detection, by active alarms, by
videoloss, or by Macro functions.
The multiplexer also allows you to read the status of the alarm inputs for each
camera via the RS-232 remote control port.
Alarm History
An alarm history is kept in a cyclic buffer. History data, including the camera number,
time and date are kept in memory for up to 100 events. The most recent 100 alarm
events can be viewed on-screen in the menu system, by selecting the Alarms menu
and then selecting Alarm History.
A table will appear, allowing you to browse forward and backwards among the last
100 alarmed events.
The RS-232 remote control capability allows an operator to upload the alarm history
to a PC or a similar controlling device.
Main Alarms Alarm History