WIRING
Connect the sounder to the sounder circuit from the control panel; wiring terminal connections are as illustrated in picture 10 and described in
table 1; an example of a typical circuit wiring arrangement is shown in picture 11.
STERLING SAFETY SYSTEMS
- Unit B12a, Holly Farm Business Park, Honiley, Warwickshire,
CV81NP
www.sterlingsafety.co.uk
P
o
s
T
o
n
e
A
lt
Picture 10
Table 1
Terminal block number
Terminal block designation
Notes
Usage
1
Pos
Terminal blocks for the line’s positive terminals
(+). These block are shorted: either one can be
used.
Connect to the positive terminals of the
control panel’s sounder circuit.
2
3
Tone
Terminal blocks for the line’s negative terminals
(-). These block are shorted: either one can be
used.
Connect to the negative terminals of
the control panel’s sounder circuit.
Wiring to these terminal blocks acti-
vates the main tone set.
4
5
Alt
Terminal blocks for the line’s negative terminals
(-). These block are shorted: either one can be
used.
Connect to the negative terminals of
the control panel’s sounder circuit.
Wiring to these terminal blocks acti-
vates the alternate tone set.
6
Sounder line (+)
Sounder line (-)
Picture 11
Use of the Tone or Alt terminals enable, respectively, the main tone set or the alternate one; refer to the MAIN TONE SET
and the ALTERNATE TONE SET paragraphs.
The sounder line must
be capable of providing
a surge/power-up cur-
rent of at least 2 times
the sum of the indicated current
of all the AV devices on the line
itself.
The sounder line must be capable
of providing a steady state cur-
rent of at least 1.5 times the sum
of the alarm currents of all the AV
devices on the line itself.