• Designed to mount directly to a range of general purpose HART®

connection units and IS backplanes

• Provides a simple interface to smart devices in the field

• Connect up to 7936 HART® devices on a single RS485 network

• LED indication for fault diagnosis

• Auto baud rate detection

• Connectivity to HART® configuration and Instrument Management

software (IMS)

The MTL4851 and MTL4852 HART connection system provides a simple

interface between smart devices in the field, control systems and HART

instrument management software run on a pc.

The system is based on 16-channel modularity to provide a compact,

easily configurable and expandable system. Using a standard RS485 serial

link up to 7936 HART devices can be connected on a single network.

For the optimum solution, choose from a range of general purpose

and IS termination boards. For maximum flexibility the HMM64 HART

backplane locates an MTL4851 master communications module and

up to three MTL4852 secondary interface modules, with each module

connecting to 16 field devices. General purpose HART connection units

and IS backplanes are available fitted with an cable interface connection

to the HMM64. This system can be extended with further HMS64 HART

backplanes linked to the master, each carrying up to four MTL4852

secondary interface modules.