HMi Series Instruction LeafletSerial Port PinoutFor 4” (HMI04BU/HMI04CU)COM1 and COM3 are RS-232 only COM2DB 9 Pinout for COM1 and COM3 RS-232COM3 Not Used COM3 UsedPIN COM1 COM3 COM1 COM312 RX RX3 TX TX45 GND GND GND67 RTS TX8 CTS RX9Not UsedNote: Blank=No connection.COM2 Pinout forRS-422 & RS-485PIN RS-422 RS-485G GND GNDT+ TX+ TX+T- TX- TX-R+ RX+ RX+R- RX- RX-Note: Blank=No connection.Note: For RS-485 Connect TX+ to RX+ andTX- to RX-.EATON CORPORATION www.eaton.com 11

Preface

General Description

Accessories (sold Separately)

Hardware Features

Dimensions and Cut-Outs

Serial Port Pinout

Accessing the Setup Screens

Specifications

Eaton HMi Series Instruction Leaflet

Operator Interface Products

Graphics Panels

Software and Accessories

Dimensions

product description

Operator Interface

Product Family Overview

technical data

Stand-Alone Touchscreen Displays

Power Pro LT 1100, 1700, 3000 and 5000

PC Pro Runtime Hardware Key

Software

Connectivity: Utilities, Interfaces & Cables

Accessories

Legacy Products Spare Parts

HMI04BU

HMI06BE

HMI06GE

HMi Series

HMI04CU