23 GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
4.3.1 Pinout of a 6-Pin Female Connector
A - external trigger.
B - RS-232-C to mag.
C - RS-232-C from mag.
D - (+) of 12V lead acid battery charger.
E - Ground, (common).
F – external battery + 11V to 15V.
NOTES:
External power applied to pin F does not charge the internal battery.
Voltage in excess of 15 volts in pin F may trigger an internal protection and blow
the internal fuse. Fuses cannot be reset and must be replaced.
4.3.2 Pinout of a 4-Pin Female Connector
A - signal input.
B - Ground.
C - not used.
D - not used.
4.3.3 Pinout on BNC Female Connector (Fast or Walking modes):
Center pin - RF output.
Body - Ground.
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