ISOLATED-RS-EK Silicon Labs

Isolated RS232 and RS485 Expansion Board User Guide The Silicon Labs Isolated RS232 and RS485 Evaluation Board KEY FEATURES OR KEY POINTS is a hardware plugin card for EFM8 and EFM32 Starter Kits (STKs). The Isolated RS232 and RS485 EXP is intended to 20-pin headers for connection to EFM8 and EFM32 starter kits help demonstrate and evaluate applications for Silicon Labs iso- Software demos available in Simplicity lation and MCU products. Silicon Labs isolation products create Studio a CMOS barrier to protect components while still allowing for com- Power and communication over isolation barrier munication and power transfer. Silicon Labs MCU products offer Jumpers for easy manual control of input broad solutions for low power, industrial, consumer electronics signals and more. Software demos are available for connecting the MCU Isolated RS232 and RS485 EXP and can be downloaded and run through Simplicity Studio. The demos send signals across the isolation barrier and the message is seen by the user on a terminal or on the screen of the MCU STK. They also showcase Silicon Labs ISOVolt technology as the MCU powers components across the isolation barrier. Note: For full use and evaluation of the Isolated RS232 and RS485 EXP a MCU STK is needed. For full demonstration, two MCU STKs and two Isolated RS232 and RS485 EXPs are needed to communicate between one another. Software examples are provi- ded for two MCU STKs, the EFM32 Wonder Gecko Starter Kit EFM32WG-STK3800 and the EFM8 Universal Bee 1 Starter Kit SLSTK2000A. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 1 Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 26, 2021 1Isolated RS232 and RS485 Expansion Board User Guide Kit Contents 1. Kit Contents The Isolated RS232 and RS485 Evaluation Kit contains the Expansion Board, null modem DB9 cable, and a QR code card for quick access to information. Other features of the kit include the following items: 20-pin header to connect to the MCU STK DB9 port for RS232 Screw terminals for RS485 Power of the EXP board through the 20-pin header or screw terminals Breakout points for precise evaluation of specific systems Isolation barrier to separate the STK MCU from the EXP Easy use through Simplicity Studio Figure 1.1. Annotated Isolated RS232 and RS485 EXP Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 Rev. 0.1 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice July 26, 2021 2