Connecting Chassis to Power Source
Mounting OS6400 Switches
page 3-20
OmniSwitch 6400 Series Hardware Users Guide
April 2011
DC Power Supply Connections
In addition to the installation steps described in
“Connecting a Power Supply to the Chassis” on page 3-13
and
“Rack Mounting Power Supplies” on page 3-15
DC power supplies have the following additional
considerations:
•
Connect to a -48V reliably grounded DC SELV source.
•
Use common DC return connections for the DC power supplies. The DC return terminal conductor
should be connected to the equipment frame.
•
The Branch Circuit Overcurrent Protection must be rated a Maximum of 15A.
•
Use 12AWG solid conductors only.
•
A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
Twisted pair wire (red and black) for a DC power supply
Note.
Refer to the wiring diagram for information on connecting the DC power supply to a DC power
source.
Connecting to a DC Power Source
The DC power supply on your switch contains a power connector with three (3) square slots for connect-
ing the positive, negative, and ground wires from a DC power source.
OmniSwitch DC Power Supply Connector
MIN 1 TURN PER 1.5
HALF TURN PER .75
Black
Red
Side Screws for Connector Removal
DC Power Connectors
+ -