Eaton MTL4854 Multi-modem HART Multiplexer

For applications where communication paths with several field devices

need to be established and maintained in parallel, the Crouse-Hinds

series MTL4854 HART multiplexer is the ideal product to use.

This is a module that has the same 32 channel capacity as the MTL4850

for connection to field devices, but also has four HART modems rather

than just one.

Essentially, this gives 4 x 8 channel multiplexers in one compact housing,

enabling simultaneous communication with several field devices through

one serial link. One particular use for this is during partial stroke testing

of valve positioners, where the ability to maintain access to other

connected devices while the multiplexer would otherwise be locked

enables plant monitoring to continue.

Certifications and compliances

• Zone 2 (mounting)

• Division 2 (mounting)

• ATEX and IECEx

• Operating temperature range: -40°C to +70°C

• Non-operating temperature range: -40°C to +85°C

Design features

• Connection to multiple HART devices simultaneously

• Faster initialization and loop scanning

• Channel-to-channel isolation

• Plug-and-play for serial link communication parameters

• LED indication for fault diagnosis

• Supports HART Rev. 5-7 devices

• Onboard event log