INSTRUCTIONS
FOR INSTALLATION
AND OPERATION
MODEL
ALARM INTERFACE
WITH RELAY FOLLOW
INTRODUCTION
The VI 300X-IAF Alarm Interface with Relay
Follow allows external alarm devices to be
connected to a Vicon
digital control
CPU and provides one dry contact output
relay per alarm input. Each
accepts 32 alarm inputs and provides 32
relay outputs mated to the inputs. Refer to
Table 1 for a list of available models.
Units may be cascaded to accommodate
whatever maximum number of alarm inputs
can be supported by the Nova CPU. Cas-
caded units are interconnected over a par-
allel data interface using cables that are
supplied with each unit. Each
in a cascaded system is programmed with
its own unique address, which defines the
alarm input range and the relay output
range assigned to the unit.
When the
senses a change in
status of one of its alarm inputs, it transmits
the information to the CPU, which an-
nounces the alarm to the operator and may
TABLE 1
MODELS AND PRODUCT CODES
Model Number Product Code Description
VI 300X-IAF
I
4759-00
120 VAC
4759-01
230 VAC input
also execute a preprogrammed response to
the alarm. Such responses include dis-
playing the video from the camera associ-
ated with the alarm on selected alarm
monitors, causing a camera station to carry
out a preset-position program, and dis-
playing a special alarm message on the
alarm monitors. A green LED on the front
panel of the
glows steadily
during an alarm, and the unit generates a
warning tone. The tone may be disabled.
If the
is used with a
or
344 CPU, the alarm inputs function
in the normally closed (NC) mode. If the
IAF is used with a VPS1444, VPS1466, or
CPU, the alarm input mode may
be programmed either normally closed (NC)
or normally open (NO). The output follower
relays always function in the normally open
(NO) mode.
Acknowledging individual alarm inputs is
performed from the Nova operator control
panel. Enabling and disabling individual
alarm inputs is done by software in the
system CPU.
is compati-
ble with the following
300
344
466
(in the future).
Vicon part number
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