Laird CL4790, Quick Start Manual

Page: 5 / 14

https://www.lairdconnect.com/resources/support 5
© Copyright 2021 Laird Connectivity
All Rights Reserved
Americas : +1-800-492-2320
Europe : +44-1628-858-940
Hong Kong : +852 2762 4823
Warning: Operating the CL4790 Unit without the antenna attached can damage the radio and void the warranty!
To connect the CL4790 to your PC, follow these steps:
1.
Attach the Antenna to the CL4790
2.
Connect the CL4790 unit to your PC. Depending which variant of the CL4790 is being used you will need to connect to
your PC using one of the following setups:
▪
CL4790-1000-232 can be directly connected to a DB9 Serial port on PC using the included serial cable.
▪
CL4790-1000-232 can be connected using RS232-to-USB Serial cable to PC ( Figure 7 ).
Figure 7: CL4790 connected to a PC via RS232-to-USB cable
▪
CL4790-1000-485 can be connected using an RS485-to-USB adapter ( Figure 8 ). See page 10 of CL4790
Hardware Integration Guide (Datasheet) for wiring diagram.
Figure 8: RS485-to-USB (ULINX 485USBTB-2W)