CHC i80 - Lower Housing; Receiver Ports

2. Getting started with i80
i80 GNSS Receiver User Guide  Page 8
continuously to reset the mainboard.
For more information about the front panel and relevant operations, see 3.
Front panel operation.
2.2.2. LOWER HOUSING
The lower housing contains one SIM card slot, two battery compartments,
one TNC radio antenna connector, two communication and power ports, one
5/8-11 threaded insert, and two nameplates.
2.2.3. RECEIVER PORTS
Port
Name
Description
IO port
 This port is a 7-pin Lemo connector that supports RS-232
communications and external power input.
 Users can use GPS to PC Data Cable supplied with the
system to realize RS-232 communications between the
receiver and computer or controller. Also, users can use a
7-pin cable to transmit differential data to an external radio.
TNC radio antenna
connector
SIM card slot
USB communication and
power in port
IO serial communication
and power in port
Battery compartment
5/8-11 threaded insert