User's Manual

6
To be used only for the purpose for which it is submitted. All rights reserved to AMDS LLC. Reproduction without written
consent is prohibited.
1.5. Block Diagram
1.5.1. Power System
!!! Danger !!!
Hazardous AC voltages capable of producing severe electrical shock
are present at various locations in the TGB. Exercise caution when
working inside the enclosure, to assure that contact is not made with
and electrical termination.
!!! Warning !!!
The batteries are a source of energy and can be hazardous if
shorted. Exercise caution.
1.5.1.1. AC Power – Indoor
AC Power is supplied to the rectifier through a rack mounted power
strip with integral ON/OFF switch and surge protection.
1.5.1.2. AC Power – Outdoor
AC Power enters the outdoor enclosure through the bottom of the
cabinet. The rectifier plugs into the surge protected, GFI outlet located
in the bottom of the cabinet.
1.5.1.3. DC Power
The rectifier converts commercial power (120/220VAC) to
24VDC power to the equipment chassis, heat exchanger, fans,
intrusion alarm, and batteries. In the event of commercial power
failure, the rectifier provides uninterrupted DC power by switching over
to battery backup.
1.5.1.3.1. Fuses and Breakers
The TGB contains one 10A circuit breakers/disconnects—one to
protect/control power to the electronics chassis.
1.5.1.4. Grounding
The ground bus bar MUST be connected to the site’s HALO ground
using an insulated conductor of sufficient size. All transient voltage
protectors (antenna, commercial power, TELCO lines) are grounded to
this bus bar. Failure to properly ground the TGB equipment presents
a risk to not only the TGB electronics, but other customers’ equipment
at the site as well.
A qualified electrician should perform connection. Consult a local
electrician, or site engineer, for size requirements.