Task 4 - Connect Input/Output Cabling (Some Models Only) - Eaton RM3-400-0330 Installation And Operation Manual

Step 4 - Check Output Reference to Ground
The grounding arrangement of your communications equipment determines how the
dc common of the dc power system is referenced to ground.
The dc output of the RM3-400/410/420 is "floating" (not bonded to ground).
If the grounding policy at the site requires that the dc supply must be bonded to
ground, then this connection must be made external to the RM3-400/410/420.
Procedure complete

Task 4 - Connect Input/Output Cabling (some models only)

This task only applies to RM3-410 and RM3-420 models (see Model Numbers on page 2) in the
following circumstances:
The RM3-410 or RM3-420 is to be connected to an RM3-400 extension power shelf (see
•
details on page
The RM3-410 or RM3-420 is fitted with an input/output (I/O) board (see Input/Output
•
Board on page 67) and connection to external sensors/devices is necessary.
Step 1 - Remove top cover
See the diagram on page 3.
Step 2 - Connect RJ45 patch cable (if required)
If the RM3-410 or RM3-420 is to be connected to an RM3-400 extension power shelf:
1
2
Protective earthing conductor to protective earth wire in building.
23 ), or
Connect an RJ45 patch cable to a spare RJ45 socket (S1, S2 or S3) on the voltage
feed module. See the diagram on page 3.
Feed the patch cable through the I/O cable entry hole ready to be connected to
the extension power shelf (see details on page 23).
Copyright © 2007-2010 Eaton Corporation. All Rights Reserved.
IPN 997-00012-62E June 2010
Installation
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