Connect Power to the PwrPak7
To connect power to the PwrPak7:
-
Connect the M12 connector of the PwrPak7 Power Cable to the PWR port on the PwrPak7. See PwrPak7 Power Cable for information about this cable.
-
Connect the bare wires of the power cable to a 9 to 36 VDC power supply.
For details about the power supply required, see Power Supply Requirements for the PwrPak7.
When connecting a single battery to the PwrPak7 Power Cable (01019764), it is recommended to connect the (+) Positive side of the battery to +VIN_A and +VIN_B wires, and (-) Negative side of the battery to -VIN_A and -VIN_B.
This configuration reduces voltage drops in the cable and will extend usable battery life somewhat when running on battery only (not charging).
Fuse for the Power Supply
Install a user supplied 2 A slow blow fuse in the positive line of the connection to the power source to protect the power supply wiring and your warranty.
Fuse for PwrPak7 Power Supply
Fuse |
Holder |
---|---|
BK/MDA-2-R Fuse (or equivalent) BK/MDL-2-R Fuse (or equivalent) |
BK/HFA-R Fuse (or equivalent) |
The fuse and holder are made by Cooper/Bussmann; available from Digikey.
Vehicle Installation
If the receiver is installed in a vehicle, it is recommended that a dedicated battery be provided for the receiver that is isolated from the engine starter battery. When a vehicle engine is started, the voltage on the starter battery can dip below the PwrPak7 minimum voltage or cut-out to ancillary equipment causing the receiver to lose lock and calibration settings.
Dedicated Battery for PwrPak7
Seamless Battery Swap
Two batteries can be connected at the same time. If a battery requires charging, it can be removed without experiencing any power interruption (battery A or B).
Seamless Battery Swap
-VIN_A and -VIN_B are connected together inside the PwrPak7 and are also connected to DGND (Digital I/O ground and GNSS Cable shell). Power sources connected to the PwrPak7 must be floating, or have their (-) terminals connected to the same ground reference as any equipment connected to PwrPak7 (including the GNSS antenna).
Power sources with a positive ground MUST NOT be used, or severe damage to the PwrPak7 and/or connected equipment will result.