ST 9100 - HARDWARE GUIDE
Parameter GPS GLONASS BeiDou Galileo
Hot Start 1 s 1 s 1 s 1 s
Sensitivity
Tracking -162 dBm -166 dBm -160 dBm -159 dBm
Hot Start -157 dBm -156 dBm -155 dBm -151 dBm
Cold Start -148 dBm -145 dBm -143 dBm -138 dBm
Accuracy
Horizontal Position 2.5 m 4.0 m 3.0 m TBD
Velocity 0.05 m/s
Heading 0.3 degrees
2.9 Internal Backup Battery
The internal backup battery provides autonomous battery charging to the transceiver and operates directly from the
external supply over the 9-32 VDC input range. The internal backup battery contains a protection card to ensure that
the pack does not get damaged due to a short circuit, over discharge or an over-charge condition.
If the battery voltage is below the minimum set voltage, the charger turns off.
Table 5: Internal Backup Battery
Parameter Value
Battery Chemistry Lithium Ion
Back-up Period 48 hours
Rated Capacity 2000 mAh
Charge (capacity) Retention 90% (after 28 days at 25 ±5°C (77 ±9°F)
Battery Cut-off 7 V
Nominal Pack Voltage 7.2 V (2 x cells in series)
Minimum Discharge Voltage 5 V
Charging Voltage 8.4 V
Peak Output Current 6 A
Refer to section 1.0.1 for internal backup battery temperature ranges.
2.10 Memory
Parameter Value
PSRAM 8 MB
Flash 16 MB
T413, Version 0.04 BETA © ORBCOMM
®
Proprietary
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