Eaton MTL HMP-HM64 HART Multiplexer Backplane – 64 Channels
The Eaton MTL HMP-HM64 is a HART multiplexer backplane that accommodates two MTL4850 or MTL4854 modules and supports up to 64 instrument channels. With ribbon-cable connections, dual RS-485 ports, and DIN-rail mounting, it is designed for smart-instrument monitoring and configuration in industrial control systems.
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- US$ 416.00
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Description
Eaton MTL HMP-HM64
HART Multiplexer Backplane | 64-Channel Capacity | Dual Multiplexer Slots | RS-485 Communication
Product Detailed Description
The Eaton MTL HMP-HM64 is a HART multiplexer interface backplane designed for industrial instrument-management systems. It accommodates two MTL4850 or MTL4854 HART multiplexer modules, supporting up to 64 HART instrument channels per unit for monitoring and configuration of compatible smart field devices.
The backplane provides four 20-way ribbon-cable connectors for linking HART signals from compatible connection units, two RS-485 communication ports for connection to a maintenance workstation or additional interfaces, and redundant 24 V DC power inputs. Its DIN-rail carrier allows installation in control-room cabinets and supports expansion by daisy-chaining compatible interfaces.
Technical Specifications
| Parameter | Specification |
| Brand | Eaton / MTL Instruments |
| Model | HMP-HM64 |
| Product Type | HART Multiplexer Interface Backplane |
| Compatible Modules | 2 × MTL4850 or MTL4854 |
| Channel Capacity | Up to 64 HART channels |
| HART Connections | 4 × 20-way DIN 41651 ribbon-cable connectors |
| Communication Interface | 2 × RS-485 ports |
| Power Supply | 21–35 V DC |
| Maximum Power Consumption | Approx. 2.9 W with two multiplexer modules installed |
| Mounting | T-section or G-section DIN rail |
| Dimensions | Approx. 156 × 125 mm footprint; height up to 152 mm from the top of the DIN rail with modules installed |
| Weight | Approx. 220 g excluding modules and accessories |
| Operating Temperature | -40°C to +70°C |
| Country of Origin | Not confirmed; verify the unit label |
| Product Status | Listed in Eaton technical documentation; confirm current order availability |
| Replacement Model | No direct replacement confirmed |
This item is listed for catalogue and inquiry purposes. Availability, condition, revision, warranty coverage, and lead time are confirmed with each quotation.
All items are Distributor Ready-stock Genuine Brand-new Supplying, please inform us if the
Important Application Note
The HMP-HM64 backplane does not provide the full HART multiplexing function by itself; compatible MTL4850 or MTL4854 modules and suitable field connection units or backplanes are required. Confirm the installed module count, ribbon-cable connections, power supply, and RS-485 configuration before ordering.
Applications
| Industrial Automation & Control | Machinery & Equipment |
| • HART instrument communication | • Process equipment monitoring |
| • Distributed control systems (DCS) | • Pump and compressor instrumentation |
| • Smart transmitter configuration | • Machine process monitoring |
| • PLC and control-system integration | • Equipment diagnostics |
| • Remote instrument maintenance | • Condition monitoring |
| Power & Electrical Systems | Industrial Applications |
| • Control cabinet communication | • Oil and gas facilities |
| • Instrumentation signal management | • Chemical processing plants |
| • RS-485 network connections | • Water and wastewater treatment |
| • HART-enabled measurement systems | • Power generation facilities |
| • Industrial data acquisition | • General process industries |
Additional information
| Warranty : | 12 Month |
|---|---|
| Lead Time : | Ready Stock |






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