Installation
14
INS 034-9
2.4.5
Extension Speaker(s)
These are connected to the two terminals on the control panel labelled L/S.
1)
The total load including the built-in speaker must not be less than 4
Ω
(e.g. 2
x 8
Ω
speakers in parallel, 4 x 16
Ω
speakers in parallel, 2 x 2
Ω
speakers in
series, 4 x 1
Ω
speakers in series, etc.)
2)
The polarity of extension speakers is usually unimportant. However the
polarity of the L/S terminals is indicated with + and - markings.
2.4.6
Internal Siren(s)
If required these are connected to two of the external sounder connections, in
addition to the external sounder, as follows:
Terminal
Connect To
A
Siren Positive Supply (+12V)
B
Siren Negative Activate/Negative Supply (0V)
2.4.7
Global System Tamper
This is connected to the terminal pair labelled TAMP on the control panel. All the
individual zone tamper loops should be wired in series.
Figure 6 - Wiring the Global System Tamper
1)
The control panel is supplied with a link fitted across the Global System
Tamper to simulate a closed circuit. This link would usually be removed
during installation.
2)
Most detectors have normally closed contacts which should be wired in
series. Normally open detectors (e.g. pressure mats) can also be used but
should be wired between a zone and the global system tamper.
