Alcatel OS6855-24 User Guide - Page 66

DC Power Supply Considerations, Connecting a DC Power Source

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DC Power Supply Considerations OmniSwitch 6855 Series Chassis and Hardware Components DC Power Supply Considerations In addition to the installation steps described in "Connecting a Power Supply Directly to the Chassis" on page 3-6 and "Rack Mounting the Power Supply Tray" on page 3-7 DC power supplies have the following additional considerations: • Connect to a -48V reliably grounded DC SELV source if using either a PS-120I80DC48 or PSI40DC2448(E) power supply. • Connect to a 24V reliably grounded DC SELV source if using a PS-100I80DC24 or PS-I40DC2448(E) power supply. • 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 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 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 a DC Power Source The DC power supply on your switch contains a power connector with three (3) square slots for connecting the positive, negative, and ground wires from a DC power source. DC Power Connectors page 2-44 + - Side Screws for Connector Removal OmniSwitch DC Power Supply Connector OmniSwitch 6855 Series Hardware Users Guide September 2011

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DC Power Supply Considerations
OmniSwitch 6855 Series Chassis and Hardware Components
page 2-44
OmniSwitch 6855 Series Hardware Users Guide
September 2011
DC Power Supply Considerations
In addition to the installation steps described in
“Connecting a Power Supply Directly to the Chassis” on
page 3-6
and
“Rack Mounting the Power Supply Tray” on page 3-7
DC power supplies have the follow-
ing additional considerations:
•
Connect to a -48V reliably grounded DC SELV source if using either a PS-120I80DC48 or PS-
I40DC2448(E) power supply.
•
Connect to a 24V reliably grounded DC SELV source if using a PS-100I80DC24 or PS-I40DC2448(E)
power supply.
•
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 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 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
+ -