External Connections; External Antenna Option; Battery; Figure 5 - St100 External Connections - Globalstar ST100 User Manual

8545-0194-01 v1.0

2.10. EXTERNAL CONNECTIONS

The picture (below) depicts the PCB external interfaces.

2.10.1. EXTERNAL ANTENNA OPTION

The ST100 has provisions where an external antenna can be used on either the Bluetooth and/or the GPS/Satellite antennas. If
an external antenna is used, care should be taken when connecting the external antenna to the u.FL connector - Hirose part #
U.FL-R-SMT(10) on the ST100 PCB. If this option is desired, Globalstar needs to know before boards are ordered.

2.10.2. BATTERY

The ST100 has terminals on the PCB where a battery can be soldered to. The user / installer should carefully note the location
of the positive and negative terminals marked on the PCB and solder the battery accordingly. It will be up to the user / installer
to verify the power requirements (see Table 7 - Operating Conditions). NOTE: RoHS-compliant and lead-free solder must be
used in order to maintain the RoHS-compliance of the ST100.
The ST100 can be powered in the following configurations:
1. Line powering with a 3.4V to 5.5VDC source to the battery terminals. The source must meet the requirements specified
(see Table 7 - Operating Conditions).
2. Connecting a battery to the battery terminals and connecting a 0.75V to 5VDC source to the solar terminals. The source on
the solar terminals must meet the requirements specified (see Table 7 - Operating Conditions).
ST100 User Manual v1
GPS/SATELLITE U.FL CONNECTOR
14 PIN CONNECTOR

FIGURE 5 - ST100 EXTERNAL CONNECTIONS

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SOLAR ( + ) TERMINAL
SOLAR (-) TERMINAL
BATTERY ( + ) TERMINAL
BATTERY (-) TERMINAL
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