Vertiv USB485I Concise Descriptor

Overview

The Vertiv USB485I is a USB to RS-485 adapter designed to facilitate serial communication for devices utilizing Modbus/RTU and BACnet/MSTP protocols. This adapter is specifically relevant for integrating environmental monitoring sensors, such as those used with the RDU101, into a larger building management or industrial control system. It bridges the gap between a standard USB port on a computer or server and the serial interface required by many industrial devices, enabling data acquisition and control.

Compatibility

This adapter is engineered to work with systems that require Modbus/RTU or BACnet/MSTP serial communication. It is directly compatible with Vertiv's RDU101 environmental monitoring system and its associated sensor modules, including the Intellislot Relay Card (RELAYCARD-PG), Two-Door Switch Monitor Sensor Probe (SN-2D), Three Dry Contact Input Monitor Sensor (SN-3C), Single Modular Temperature Probe (SN-T), and Modular Temperature and Humidity Sensor (SN-TH). Ensure your host system supports the necessary drivers for USB-to-serial conversion.

Installation Notes

Installation involves connecting the USB485I adapter to a host system's USB port and then connecting the RS-485 terminals to the serial port of the target device. Proper driver installation on the host system is critical for the adapter to be recognized. For RS-485 communication, ensure correct polarity (+/-) and termination resistance are applied as per the requirements of the connected devices and the overall network design to maintain signal integrity.