Emerson Rosemount 3490 Series Reference Manual page 26

Installation
January 2021
Refer to the Rosemount 3490 Series
can be drilled for fitting cable glands.
Related information
RS232 connections
3.4.2 Making electrical connections on panel-mount units
Field wiring connections are made to the back of the panel-mount control unit using the
two-part (plug/socket) terminal connectors provided.
Note
The plug/socket terminal connectors on the panel mount unit are polarized (keyed) to
prevent inter-changeability and incorrect connection.
Figure 3-6: Connection Terminals Layout (Mains-powered Panel-mount Unit)
The dc powered control unit has a slightly different layout – terminals 31 and 32 replace
terminals 28 and 29.
26
Quick Start Guide for information about where holes
Figure 3-6
Reference Manual
00809-0100-4841
shows the rear panel.
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