Laipac Technology Inc.
20 Mural Street, Unit 5, Richmond Hill Ontario L4B 1G5 Canada
Tel: 905-762-1228 | Fax: 905-763-1737 | E-mail:
|
http://www.laipac.com
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7. Installation guidance
(1) There exist 2 wires on the output cable of SF-Aire to be use for connecting
external DC power supply (9 to 36V). However, for automotive application, only
12V car battery is accepted since very high spike voltage could be generated when
vehicle’s engine is being started.
a.
Red wire: connect to “+” polar of DC power supply
b.
Black wire: connect to “-” polar of DC power supply
(2) Picture below shows the position of built-in GPS and GSM antennas inside of SF-Aire.
Try to keep, at least 50 cm or more clearance away GPS antenna and at least 20 cm or
more clearance away GSM antenna.
The idea working environment for GPS antenna is shown below. It will allow device
to be very easy to receive strong GPS signal from Satellites in sky in order to locate
the device’s position accurately.
a.
When device is installed horizontally, it is better to have 180º and 360º open view
to the sky , as shown in the drawings below
180º open view
360 º open view
GPS
Ant.
GSM Ant.