Overview

The Eaton MTL 8937-HN is an industrial optical communication module developed to extend the reach of Honeywell Series C control architectures. By utilizing fiber optic technology, the module enables remote I/O deployment and provides improved immunity to noise and grounding problems commonly encountered in large-scale process plants.

The module is widely applied in distributed automation systems where cabinet separation distances exceed the limitations of conventional copper connections. Its optical design ensures secure and stable communication while reducing susceptibility to electromagnetic interference.

Why Are Both Honeywell and MTL Associated with the 8937-HN?

Although the hardware itself belongs to the MTL product family, the 8937-HN was specifically engineered to work with Honeywell control platforms. MTL and Honeywell have maintained a global partnership for many years to provide integrated interface and connectivity solutions. After MTL became part of Eaton, the product branding evolved, resulting in listings such as Honeywell 8937-HN, MTL 8937-HN, or Eaton MTL 8937-HN. In practice, these names generally refer to the same component used in Honeywell Series C systems.

Features

Long-Distance Optical Transmission

Supports communication over extended installation distances.

EMI Immunity

Fiber optics eliminate problems caused by electrical noise.

Redundant Connectivity

Provides enhanced communication reliability.

Seamless System Integration

Optimized for Honeywell C300 and Series C I/O platforms.

Compact Industrial Design

Suitable for installation inside control cabinets.

Specification	Details
Product Name	Eaton MTL 8937-HN
Product Type	Fiber Optic Extender Module
Manufacturer	Eaton MTL
Series	Honeywell Series C Solutions
Function	I/O Link Extension
Power Supply	20–30 VDC
Current Consumption	85 mA Maximum
Communication Medium	Fiber Optic
Data Transmission	High-Speed Optical Communication
Redundancy	Supported
Operating Temperature	-20°C to +70°C
Hazardous Area Rating	Class I Division 2
Mounting Type	DIN Rail
Weight	Approx. 0.6 kg
Country of Origin	United Kingdom
Condition	Brand New & Original
Availability	In Stock
Shipping	Worldwide Delivery
Warranty	12 Months

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6. Experion PKS Fiber Extender
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11.