INS154-4 3
1. Installation
1.1 Mounting the Unit
Select a suitable position to mount the unit, which satisfies the following criteria:
• Highly prominent for maximum deterrence
• Additional shelter (e.g. under the eaves) is an advantage
• High enough to be out of normal reach to deter tampering
• Safe ladder access
• Good cable access
In addition to the corner screw fixing points, the unit also has a central keyhole to
simplify mounting and aid levelling.
Four screws and wall plugs are required for mounting the backplate to an even
surface. An additional screw may be required to provide wall tamper by fitting
through the screw hole next to the dual tamper microswitch. In doing so, care must
be taken to leave the screw head slightly proud to ensure that the microswitch
remains level and closes correctly when the outer cover is fitted.
For safety reasons the unit must be mounted securely on a suitable wall.
For maximum weatherproofing the unit should be flat to the wall.
For brick walls, BS 4737 specifies a minimum of three No. 10 steel screws
penetrating the brick (not the mortar or facing) by at least 40mm into suitable wall
plugs.
1.2 Patented Engineer Hold-Off Mode
For safety reasons, each Texecom sounder and strobe unit incorporates a unique
patented engineer Hold-Off mode. This mode prevents the unit from self-activating
during installation and maintenance, thereby allowing only bona fide engineers
access to the unit without any loss of tamper protection.
1.3 Installing the Unit
Connect the unit to the control panel as follows:
A (12V ) Permanent Positive Supply
B (BELL) Negative Applied Output to Activate Siren
C (TAMP) Negative Removed on Tamper Input
D (0V) Permanent Negative Supply
S (STRB) Negative Applied Output to Activate Strobe
Although the unit has been designed to be compatible with a wide range of control
panels, for optimum performance, it is highly recommended that the unit should be used
with Texecom's ran
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