User's Manual

Page 7
3E3140 Gallagher T20 Terminal Installaon Note | Edion 16 | March 2016
Copyright © Gallagher Group Limited
3 Distance between proximity readers
The distance separang any two proximity readers must not be less than 200 mm (8 in) in all direcons.
200 mm
When mounng a proximity reader on an internal wall, check that any reader xed to the other side of
the wall is not less than 200 mm (8 in) away.
200 mm
4 Installaon
ATTENTION: This equipment contains components that can be damaged by
electrostac discharge. Ensure both you and the equipment are earthed before
beginning any servicing.
The Gallagher T20 Terminal can be mounted on:
• a vercal, rectangular 50 mm x 75 mm (2 in x 3 in) ush box
• a BS 4662 Brish Standard square ush box
• a Gallagher Mounng Block (C300930 or C300931)
• any solid at surface
The recommended mounng height for the terminal is 1.1 m (3.6 ) from the oor level to the centre
of the terminal. However this may vary in some countries and you should check local regulaons for
variaons to this height.
Notes:
• Installaon on metal surfaces, parcularly those with a large surface area will reduce read range.
The extent to which the range is reduced will depend upon the type of metal surface. A spacer
(C300306 or C300307) can be used to help migate this issue.
• A black dress plate (C300323) can be used to cover previously installed terminals ensuring a clean
nish for sites handling an upgrade.
• When mounng on a ush box, the corner screws must be used as well as the ush box screws.
Without corner screws the top of the product is vulnerable to separaon from the wall.