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USB Driver

FTDI Virtual COM Port driver for the console port of REDZ devices

USB Driver (FTDI Virtual COM Port)

The console port of REDZ devices (for example the STG Series WMBus Gateways) uses a USB serial chip made by FTDI. If the device does not appear as a COM port on your computer, install the FTDI Virtual COM Port (VCP) driver for your operating system. The files below are FTDI's original driver packages, unchanged.

Windows

Windows 11, Windows 10 (x64 and x86), Windows Server 2022 / 2025 · version 2.12.36.20 · 2025-03-04

Download setup 2.4 MB zip

Recommended: unzip and run CDM2123620_Setup.exe. WHQL certified; installs the VCP and D2XX drivers.

Without the setup program: driver files (zip, 1.6 MB)

Windows on ARM

ARM64 · version 2.12.36.20A · 2025-03-04

Download driver files 1.1 MB zip

WHQL certified. There is no setup program for ARM64: install the driver from the unzipped files.

macOS

macOS 11 and later · version 1.6.0 · 2026-03-06

Download installer 122 KB zip

Delete earlier copies of FTDIUSBSerialVCPDextInstaller from the Applications folder first. Then move the installer to the Applications folder and run it from there.

Linux

No download needed

The FTDI VCP driver is part of the Linux kernel.

After installing: open the COM port of the device with a terminal program at 115200 baud, 8 data bits, no parity, 1 stop bit (STG Series WMBus Gateways).

File details

CDM2123620_Setup.zip
2,356,456 bytes
SHA-256 e412945bb98f96b3296a89a549e6b617129e5481e0be2fe5410247857c507796
CDM-v2.12.36.20-WHQL-Certified.zip
1,628,167 bytes
SHA-256 e8ebf401d06994183694d78e5855ed5ab026bdfa8c3d4e4ccde09ec238a0eaf1
CDM-v2.12.36.20-for-ARM64-WHQL-Certified.zip
1,107,188 bytes
SHA-256 a1db1476615326e9d03033f918f4a0762913e2eba4c1fbeec466d99112fb0c79
FTDIUSBSerialVCPDextInstaller_1.6.0_NOTARIZED.zip
121,893 bytes
SHA-256 30144cc5384bf32d8545c980cf41c88b4a848f1a43bf928f190411fc1980a853
CDM-2-12-36.20-Release-Info.zip
25,879 bytes
SHA-256 12c37a07a13d3e19177b2c1bd04737921f471229433c209ac33edf638060c229

Release notes: Windows driver 2.12.36.20. Installation guides and drivers for older systems: FTDI VCP Drivers and FTDI Installation Guides.

The drivers are made by Future Technology Devices International Ltd (FTDI) and are provided here unmodified under the FTDI driver licence. FTDI drivers may be used only with products based on FTDI parts.

LKM Series Electricity Meter Protocol to Modbus Protocol Gateways with MQTT (and LoRaWAN)
LKM Series Electricity Meter Protocol to Modbus Protocol Gateways with MQTT (and LoRaWAN)
STG Series WMBus (Wireless MBus) - Modbus Protocol Gateway with MQTT
STG Series WMBus (Wireless MBus) - Modbus Protocol Gateway with MQTT
TLM Series LoRa Modems and LoRaWAN EndNode Modems
TLM Series LoRa Modems and LoRaWAN EndNode Modems
CKL Series Modbus TCP and RTU Gateways and Serial to Ethernet Gateways
CKL Series Modbus TCP and RTU Gateways and Serial to Ethernet Gateways
BSB Series Industrial Unmanaged Ethernet Switch (with Broadband Power Line)
BSB Series Industrial Unmanaged Ethernet Switch (with Broadband Power Line)
KMK Series Optical Probes for Energy Meters
HUR Series Modbus TCP and RTU Remote I/O Devices with MQTT (and LoRaWAN)
BKV Series Industrial Converters and USB Tools
BKV Series Industrial Converters and USB Tools
BKV Series Industrial Converters and USB Tools
MBC Series IEC62056-21 Protocol Auto Baud Changer
KMK Series Optical Probes for Energy Meters
REDZ Software Solutions
LoRaWAN
LoRaWAN
In today's rapidly digitizing world, IoT (Internet of Things) devices and applications are becoming increasingly prevalent. In this context, long-range wireless communication technologies play a significant role. One such technology that stands out is LoRa, which offers an innovative solution for low-power, long-range wireless communication.
MQTT
MQTT
As the Internet of Things (IoT) continues to grow, the demand for efficient, lightweight, and reliable communication protocols becomes essential. One of the most popular protocols meeting these demands is MQTT (Message Queuing Telemetry Transport).
Broadband Power Line (BPL)
Broadband Power Line (BPL)
Broadband Powerline Technology (BPL), also known as Powerline Communication (PLC), represents a revolutionary approach to data transmission, leveraging the existing electrical power infrastructure to deliver broadband internet connectivity.
Wireless MBus (WMBus)
Wireless MBus (WMBus)
In an era defined by connectivity and data-driven decision-making, the need for efficient and reliable metering solutions has never been greater. Enter Wireless M-Bus (Meter-Bus) technology, a versatile and robust platform designed to revolutionize remote meter reading and data communication in utility management systems.
IEC62056-21 (for Electricity Meters)
IEC62056-21 (for Electricity Meters)
IEC 62056-21 is an international standard for communication with electricity meters. Developed by the International Electrotechnical Commission (IEC), this protocol standardizes the way data is exchanged between meters and various devices or systems, ensuring interoperability and efficient data management.
DLMS/COSEM (for Electricity Meters)
DLMS/COSEM (for Electricity Meters)
DLMS/COSEM (Device Language Message Specification / Companion Specification for Energy Metering) is the global standard for smart energy metering. It provides a highly secure, interoperable framework for reading and managing energy data across diverse utility networks.
P1 Companion Standard (for Electricity Meters)
P1 Companion Standard (for Electricity Meters)
Smart energy meters have become essential in monitoring and controlling energy usage. To facilitate better integration, communication, and functionality of these smart meters, standards are crucial. One such standard, particularly relevant in Europe, is the P1 Companion Standard.
Modbus RTU
Modbus RTU
Modbus RTU is a widely recognized and utilized communication protocol in the field of industrial automation. Developed by Modicon (now Schneider Electric) in 1979, it was designed to facilitate communication between various electronic devices, primarily programmable logic controllers (PLCs).
Modbus TCP
Modbus TCP
Modbus TCP, also known as Modbus TCP/IP, is a widely adopted communication protocol in the industrial automation sector. It was developed to enable Modbus communication over Ethernet networks, combining the reliability and simplicity of the Modbus protocol with the versatility of Ethernet.
LoRa RF Communication
LoRa RF Communication
LoRa stands for Long Range and is a proprietary wireless modulation technique developed by Semtech. Essentially, LoRa is the physical layer, or the hardware, that allows long-range communication between devices.
MBus
MBus
M-Bus (Meter-Bus) is a robust European standard specifically designed for the remote reading of utility meters, such as electricity, gas, water, and heat. It utilizes a simple, polarity-independent two-wire system that transmits both data and power over long distances, making it highly cost-effective and immune to industrial noise.