Unit Installation NetVanta 5305 Hardware Installation Guide
30 Copyright © 2010 ADTRAN, Inc. 61200990L1-34N
NetVanta 5305 (DC)
The DC-powered NetVanta 5305 connects to a centralized DC power source via the four-position power
connector on the rear of the chassis. The nominal input of the NetVanta 5305 is -48 VDC. Power and ground
connections require copper conductors and a ring lug.
Instructions for Connecting DC Power Source to the NetVanta 5305
Step Action
1 With the power disconnected, connect the primary power source to input A of the power
connector.
2 Connect a ground wire (minimum 12 AWG) to the grounding point using the screw provided.
Connect the other end of the ground wire to a protective earth ground.
3 If using a backup power source, connect it to input B of the power connector.
The ground wire shall be fitted with a number 8 ring terminal and should be fastened to the
grounding lug on the back panel of the unit. The ring terminal shall be installed using
AMP P/N 59250 T-EAD crimping tool or equivalent.
• Power to the NetVanta 5305 DC system must be from a reliably grounded 48 VDC
SELV source.
• Use only copper conductors (minimum 14 AWG) when making power connections.
• Install unit in accordance with the requirements of NEC NFPA 70.
• The branch circuit overcurrent protection shall be a fuse or circuit breaker rated
minimum 48 VDC, maximum 15 A.
• A readily accessible disconnect device, that is suitably approved and rated, shall be
incorporated in the field wiring.
• Maximum recommended ambient operating temperature is 50
°C.
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