Magellan Z-Max Pocket Manual page 5

GPS Receiver Module
The GPS Receiver module, Figure 1, is
essentially a specialized computer for processing
and manipulating GPS measurements. The GPS
receiver module has functionality similar to a
personal computer including keypad, display,
memory card, serial port, USB port, Bluetooth port
and power port.
Figure 1 GPS Receiver Module
2
Z-Max Surveying System Pocket Guide