User`s manual

AC Power (Mains) Connections
DNH Power Supply
Each of the DNH electronic modules has a Power Supply Assembly
located below the DataNET Hub board. Each power supply can accept
inputs from 85-264 VAC, 47-63 Hz without the need for setting switches
or jumpers.
A
C INPUT CONNECTOR
Installation Note
Depending upon the user configuration the power supplies can be
connected in parallel and powered from a single power source or each
supply can be powered from two independent power sources. In either
case disconnects must be provided for each input power source.
Before You Begin
The DNH should be installed in a rack or wall mount; see Wall or Rack
Mounting Installation; page
17. How you route the cable and wire to the
DNH is dependent upon the site requirements. See Site Wiring
Requirements (page
19) to determine the requirements for your site.
All wiring shall conform to the National Electrical Code (NEC) and/or
other national or local code requirements.
Instructions
Step Action
1. Shut off the primary AC Power Supply lines to this location.
2. Open the door of the DNH by loosening the four captive
screws located on each corner; use a 4mm Allen wrench.
26 • Installation 2000585-001