NetVanta 3000 Series Hardware Installation Guide Unit Installation
61200860L1-34L Copyright © 2006 ADTRAN, Inc. 67
NetVanta 3205 (DC)
The DC-powered NetVanta 3205 connects to a centralized DC power source via the three-position terminal
block on the rear of the chassis (see Figure 9 on page 29). Power and ground connections require copper
conductors and ring lugs.
Instructions for Connecting DC Power Source to the NetVanta 3205
Step Action
For +24 VDC operation:
1 Connect the negative terminal to ground.
2 Connect the positive terminal to the +24 VDC power source.
For -48 VDC operation:
1 Connect the positive terminal to ground.
2 Connect the negative terminal to the -48 VDC power source.
• Power to the NetVanta 3205 DC System must be from a reliably grounded +24 or
-48 VDC source which is electrically isolated from the AC source.
• Use only copper conductors when making power connections.
• Install unit in accordance with Article 400 and 364.8 of NEC NFPA 70.
• The branch circuit overcurrent protection shall be a fuse or circuit breaker rated
minimum 60 VDC, maximum 10 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.
The 10/100BaseT Ethernet interface MUST NOT be metallically connected to interfaces
which connect to the Outside Plant or its wiring. This interface is designed for use as an
intra-building interface only. The addition of primary protectors is not sufficient
protection in order to connect this interface metallically to OSP wiring.
To comply with GR-1089-CORE, Issue 3, this equipment MUST only be installed in a
DC-C (common) bonding and grounding environment. It may not be utilized in a DC-I
(isolated) bonding and grounding environment.
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