G.M. International Multiplexer D2030M units can be installed in the field, close to input sensors, for data acquisition of signal from Hazardous Area/Hazardous Locations Zone 0-1-2 or Class I, Class II, Class III, Division 1-2. The units are primarily intended for Hazardous Area/Hazardous Locations acquisition of voltage free contact or EN60947-5-6 proximity detectors. D2030M scans all channels and stores all data in a memory buffer, where they can be rapidly accessed by the Modbus Gateway D2050M unit. Each D2030M unit accepts directly up to 32 input channels. Four D2030M units achieve 128 inputs with a single Modbus Gateway D2050M unit. Redundant communication is obtained by dual data/supply interface line. Safety parameters mantain compatibility with Gas Group IIC or Gas Group A and B, even in redundant mode. All parameters are software configurable by serial commands via D2050M Gateway unit. Functions and serial commands for RS-232 and RS-485 protocols are provided in the instruction manual.
G.M. International(GMI) offers a comprehensive range of intrinsic safety (IS) barriers designed to protect field devices located in hazardous areas. These barriers ensure safe signal transmission between the field and the control system by limiting voltage, current, and power levels. GMI products focus on cost-effective protection, robust performance, and compatibility with standard industrial instrumentation.

Advantages of GMI Safety Barriers
* High cost-performance ratio: Ideal for users seeking reliable explosion protection at an economical price.
* Stable and robust design: Ensures consistent signal integrity even in harsh industrial environments.
* Simple installation and wiring: Suitable for general-purpose applications and fast project deployment.
* Compatible with most field transmitters and sensors: Supports standard analog signals such as 4–20 mA and contact signals.

Why Choose Wuhan Xieyuan as Your Partner？
Wuhan Xieyuan is a reliable supplier of GMI intrinsic safety barriers, offering genuine products, professional technical support, and fast response for industrial automation projects.
* We supply 100% original GMI barriers with full ATEX / IECEx compliance.
* Our team has solid experience in intrinsic safety applications, helping customers select the right GMI models for hazardous areas.
* Common GMI models are readily available, reducing lead time and project delays.
* Competitive pricing and flexible recommendations help optimize project costs without compromising safety.
* Fast quotation, clear communication, and reliable after-sales service ensure smooth cooperation.