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Veritas 8, 8C & R8 Installation Manual
Wiring the External Sounder
Always consult the manufacturer's connection instructions.
The external sounder and strobe are connected to the five
terminals labelled SAB on the control panel as follows:
Terminal
A
Permanent Positive Supply (+12V)
B
Switched Negative to Activate Sounder
C
D
Permanent Negative Supply (0V)
S
Switched Negative to Activate Strobe
Figure 4 - Typical SAB Connections
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An external sounder is often referred to as a 'bell' or
'bell-box' even when it is actually an electronic siren.
The control panel is supplied with a link fitted across
the Bell Tamper to simulate a closed circuit. This link
would usually be removed during installation.
If the strobe is a separate unit take the strobe positive
supply from 'A' as well.
A self-activating bell/sounder (SAB) has a built-in
battery. After connecting this battery the sounder may
sometimes sound until its cover is fitted and it is
supplied with power from the control panel.
Terminal B may be programmed as switched negative
removed rather than switched negative applied to
activate sounder (see page 21). This is useful for
SCBs where B would then be used to provide the
permanent negative supply.
INS034
Description
Negative Tamper Return
Popular SAB Wiring Diagrams
The following diagrams illustrate how to connect the control
panel to the most popular makes of SAB:
Figure 5 - Common SAB Connections
Figure 5a - Texecom Azura 360/Tempest/Odyssey.
Figure 5b - MAS Modular 3.
Figure 5c - Citadel Defender.
Installation
13
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