Cisco Systems 3700 Series manual Wiring the DC-Input Power Supply in Cisco 3745 Routers, 3-17

Models: 3700 Series

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Wiring the DC-Input Power Supply in Cisco 3745 Routers

Chapter 3 Installing the Router

Power Connections

Figure 3-20 Connecting Source A and Source B with Common Positive Terminals

 

Va voltage = Vb voltage (greater than 0.25 V)

Va voltage = Vb voltage (within 0.25 V)

A-

A-

Va

Va

+

+

A+

A+

B+

B+

 

+

+

 

Vb

Vb

 

B-

B-

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Caution In Figure 3-21, source A and source B are wired with opposite polarity grounds. Do not use this DC input configuration.

Figure 3-21 Source A and Source B Wired with Opposite-Polarity Grounds

Va

+

+

Vb

3-17 A-

A+

B+

B-

127041

Wiring the DC-Input Power Supply in Cisco 3745 Routers

If your Cisco 3745 router has a DC-input power supply, follow the directions in this section for proper wiring.

Cisco 3700 Series Routers Hardware Installation Guide

 

OL-2180-08

3-17

 

 

 

Page 63
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Cisco Systems 3700 Series manual Wiring the DC-Input Power Supply in Cisco 3745 Routers, 3-17