User's Manual

Trimble R7/R8 GPS Receiver User Guide 49
General Operation 4
Trimble R7 GPS Receiver Operation
Figure 4.3 Charging receiver and TSCe batteries
47.3 Power output
If the receiver is being supplied with power from an external source,
power is automatically output on Port 1. The output voltage is
approximately 0.5 V less than the input voltage. Port 1 outputs a
maximum voltage of 20 V, even if the input voltage is higher.
You can use GPS Configurator or Trimble Survey Controller software to
enable power output on Port 3. Port 3 can be enabled for power output
regardless of whether power is supplied internally or externally.
2
3
To AC
Power/serial data cables
power supply