Installation guide

NetVanta 1000/1000R Series Hardware Installation Guide Unit Installation

NetVanta 1224STR (DC)

The DC-powered NetVanta 1224STR connects to a centralized DC power source via the four-position

power connector on the rear of the chassis (see Figure 9 on page 24). Power and ground connections

require copper conductors and a ring lug.

Figure 23. Grounding the NetVanta 1224STR (DC)

Instructions for Connecting DC Power Source to the NetVanta 1224STR

Step Action

1 With the power disconnected, connect the primary power source to input A of the power

connector.

2 Connect a ground wire (fitted with a loop terminal end) to the grounding point using the screw

provided. Connect the other end of the ground wire to a protective earth ground. See Figure 23

below.

3 If using a backup power source, connect it to input B of the power connector.

• Power to the NetVanta 1224STR DC System must be from a reliably grounded 24 or

48 VDC.

• Use only copper conductors 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 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 and Gigabit-Ethernet interfaces MUST NOT be metallically connected

to interfaces which connect to the Outside Plant or its wiring. These interfaces are

designed for use as intra-building interfaces 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.