Introduction
GMS-2 Operator’s Manual
1-8
Rechargeable and Backup Batteries
The GMS-2 comes equipped with a rechargeable battery (Figure 1-2)
for powering the unit. The battery can be charged in the unit or in an
optional battery charger. A backup battery is also located in the
battery pocket and the unit’s serial number is located under the
battery.
The battery provides seven hours of operation, depending on the
mode of the receiver. Under normal conditions, the backup battery
provides eight to ten years of power backup for data and system
integrity.
Figure 1-2. GMS-2 Battery
GMS-2 Front
The front of the GMS-2 (Figure 1-3 on page 1-9) is the primary
interface with its components and installed software.
•The internal GPS antenna detects signals from GPS+ satellites
and sends them to the GPS receiver board for processing.
•The display screen and touch panel provides a graphical and
tactile user interface for the unit.
•The power button turns the receiver on and off.
Backup
Battery
Battery
Serial
Number
GMS-2_OM_Book.book Page 8 Friday, December 28, 2007 1:47 PM
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