Frame Grounding Connection; Ncu Controller Ethernet Connection (If Required) - Vertiv NetSure-48 VDC Installation And User Manual

Vertiv™ NetSure™ -48 VDC Bulk Output Rectifier System Installation and User Manual

7.3 Frame Grounding Connection

For grounding requirements, refer to the current edition of the American National Standards Institute (ANSI) approved National Fire
Protection Association's (NFPA) National Electrical Code (NEC), applicable local codes, and your specific site requirements.
NOTE!
The DC return connection to this system can remain isolated from system frame and chassis (DC-I).
NOTE!
This system is suitable for installation as part of the Common Bonding Network (CBN).
Procedure
1. The frame grounding connection to the shelf is made by using grounding washers with the mounting hardware used to
secure the shelf to the relay rack or cabinet. Refer to "Securing the System to a Relay Rack or a Cabinet Equipment Rack (if
required)" on page 10. Ensure that the relay rack or cabinet is properly grounded.
NOTE!
An 8-32 frame ground stud is located on the rear of the system. Provide a grounding lead to this connection point, if
Figure 7.1
required. Refer to
Figure 7.1 Bulk Output Rectifier System Frame Grounding Connection Points

7.4 NCU Controller Ethernet Connection (if required)

The NCU Controller provides a Web Interface via an Ethernet connection to a TCP/IP network. This interface can be accessed locally
on a computer or remotely through a network. An RJ-45 10BaseT jack is provided on the front of the NCU for connection into a
customer's network. This jack has a standard Ethernet pin configuration scheme, twisted pair. Refer to Figure 7.2 for location and
Table 7.1 for pin outs. Use shielded Ethernet cable (grounded at both ends). Note that the NCU RJ-45 jack is connected to chassis
ground. Refer to the NCU Instructions (UM1M830BNA) for operational details.
NOTE!
You can access the Web pages of the power system locally by using a "crossover" or "straight" cable connected
directly between your PC and the NCU.
12
for location.
8-32 Shelf Frame
Ground Studs
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