CHAPTER 2 |
Installing the SBX
2
Connecting Alarms (optional)
The
SBX
2
provides two output alarm contacts and one input alarm contacts all of which are accessed through the alarm
RJ45 connector.
Alarm Contact
Is Used To
See Also
Output 1
Trigger an external device (a light or
See
To Wire The Alarm Connector
on
a buzzer) in the event of a system
page 14 for more information.
failure, such as input power loss or
microprocessor failure.
Output 2
Trigger an external device or monitor
See
To Wire The Alarm Connector
on
in the event the power supplies fails.
page 14 for more information.
Input 1
Connect the optional override switch
See the application to
feature. When connected to the
SBX
2
,
program override messages.
the override switch allows regular
programming to be overridden by a
pre-recorded message in case of an
emergency.
To Wire The Alarm Connector
When the system is powered up and running normally, there is a closed circuit between the Common (C) and the
Normally Open (NO) contacts, and an open circuit between the Common (C) and the Normally Closed (NC) contacts. In
an alarm condition, the opposite occurs, with an open circuit between the (C) and the (NO) contacts, and a closed circuit
between the (C) and the (NC) contacts. The Input is not polarity sensitive.
1. Wire the connector pinouts on the alarm RJ-45 connector using the following table.
Pin
Used For
1 Input 1+
5 Alarm 1 Output (NO)
2 Input 1_
6 Alarm 2 Output (C)
3 Alarm 1 Output (C)
7 Alarm 2 Output (NC)
4 Alarm 1 Output (NC)
8 Alarm 2 Output (N0)
2. Connect the wires to the appropriate external device, such as a light or a buzzer.
3. Plug the alarm RJ45 connector into the ALARM port on the
SBX
2
.
Interalia
|
SBX
2
System Manual
Page 14
