---
lang: "en"
title: "I-7590CR: RS-232/RS-422 RS-485 to M-Bus Converter"
sku: "I-7590CR"
canonical_url: "https://shop.marcomweb.it/en/meterbus/i-7590cr-rs-232rs-422-rs-485-to-m-bus-converter"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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I-7590CR: RS-232/RS-422 RS-485 to M-Bus Converter

The I-7590 is specifically designed for M-Bus slave devices. It is a serial bus to M-Bus converter. Firstly, for serial buses, it offers RS-232, RS-422, and RS-485 (three types of communication paths). Secondly, the I-7590 has two rotary switches, one for the serial port baud rate and the other for the M-Bus port baud rate. Thirdly, the I-7590 uses transparent transmission between serial bus and M-Bus communication. Through these three features, it is easy to communicate with any standard M-Bus slave.

## Features

- Serial baud and M-Bus baud can be configured separately
- Provides 10 types of default baud rates, 6 types of user-defined baud rates
- Supports up to 100 M-Bus slaves
- Provides transparent communication
- Internal watchdog
- RS-422 and RS-485 bias resistors are adjustable with a switch
- Allows firmware update via the RS-232 port
- Overcurrent and short-circuit protection on the M-Bus port
- 3750 Vrms photocoupler isolation on the M-Bus port
- ±4 kV ESD contact protection
- Reverse polarity protection on the power supply
- Provides 3 LED indicators: PWR LED, MTX LED, and MRX LED
- Dimensions: 72mm x 122mm x 33mm (L x W x H)

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Source: https://shop.marcomweb.it/en/meterbus/i-7590cr-rs-232rs-422-rs-485-to-m-bus-converter

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.