Dc Power Supply Considerations - Alcatel-Lucent OmniSwitch 6850-48 Hardware User's Manual

OmniSwitch 6850 Series Chassis and Hardware Components
You can also attach the power supplies to the back of an OmniSwitch 6850 Series chassis directly as well
as using cables at the same time, as shown in the diagram below.

DC Power Supply Considerations

In addition to the installation steps described in
page 2-80 and "Connecting a Power Supply with a Cable" on page 2-81
120W-DC) have the following additional considerations:
Connect to a -48V or -60V 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.
Black
MIN 1 TURN PER 1.5
HALF TURN PER .75
Red
Note. Refer to the wiring diagram for information on connecting the DC power supply to a DC power
source.
OmniSwitch 6850 Series Hardware Users Guide
Redundant 510W-PoE
Twisted pair wire (red and black) for a DC power supply
September 2009
OmniSwitch 6850 Series Power Supplies
1 7 . 6
i n c h e
s
"Connecting a Power Supply Directly to the Chassis" on
DC power supplies (e.g., the PS-
page 2-85