63 CHC i83 User Manual
Serial and USB IO Port Definitions
Serial IO Port Definition
PIN FUNCTION
1 Ground ( -)
2 Ground ( -)
3 RS232-TX (Output)
4 PPS (Pulse Output)
5 Not Used
6 VIN (9 to 24 VDC)
7 RS232-RX (Input)
Figure 1 7-Pin Serial IO Connection Information
External Power Cable:
External Radio Cable:
USB Port Definition
The receiver has a standard USB Type-C connector.
When connected to a computer with a USB cable, the receiver mounts as a lettered disk drive.
Upgrading Firmware
The i83 has three sets of upgradable firmware:
Main Board
OEM Board (the GNSS Engine)
UHF Radio Board
All three are updated using a similar process via the Wi-Fi interface.
1. Charge the receiver to at least 50%.
2.
First download the desired firmware files from https://igage.com/out/CHC/i83/firmware/index.htm:
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