GR30/GM30/GR50, Description of the System
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2.7 Power Supply
General Use the Leica Geosystems power supplies, batteries, chargers and accessories or
accessories recommended by Leica Geosystems to ensure the correct functionality of
the instrument.
Power options Power for the instrument can be supplied either by power supply or batteries. Up to
two external power supplies can be connected using a Y-cable.
When using the GR30/GM30 for permanent operations use Uninterruptible Power
Supply units as a back-up in case of a main power failure.
Example: Use the external battery GEB371 together with the GEV277 Y-cable. Refer to
"Using GEB371/GEV277 as UPS for GR30/GM30/GR50".
The GR50 has a built-in battery and charger that can act as a short term Uninterrupt-
ible Power Supply. For long-term protection against power failure, an external Unin-
terruptible Power Supply can also be used.
Internal power supply: For the GR50 only, GEB242 (793975) battery for internal
power supply. Battery can be charged from an external
power source.
External power supply: GEV242 (774437), 110 V/240 V AC to 24 V DC power
supply unit, supplied by Leica Geosystems.
OR
GEV270 (807696) 90-264 V AC to 13.2 V DC 40 W power
supply unit with GEV97 cable, supplied by Leica Geosys-
tems.
OR
GEB171 (439038) battery connected via a cable.
OR
Car battery connected via a converter cable supplied by
Leica Geosystems.
OR
For GR50 only, Power over Ethernet via a category 5
Ethernet cable or higher to supply 13 W of power over
Ethernet.
Y-cable: GEV243 (774438), dual power Y-cable can be used with
one GEV242 24 V power supply and one other external
power supply, such as an external battery GEB171 or a
GEV270 13.2 V power supply with GEV97 cable. The black
Lemo connector on this cable only supports the use of the
GEV242 power supply.
OR
GEV172 (733298), Y-cable can be used with any combina-
tion of 90-264 V AC to 13.2 VDC 40 W power supply
GEV270 (807696) or a GEB171 battery.
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