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Chapter 3 Installing the Router
Power Connections
Wiring the DC-Input Power Supply in Cisco 3631 Routers
If your router has a
DC Wiring Requirements
ACisco 3631 router with a
You can connect a single DC power source to either the A input or the B input. If there are dual power sources, connect one source to the A input and one source to the B input; both sources must be the same polarity and voltage.
Table
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| DC Input | Safety Ground |
| Overcurrent |
Installed Power Supply | DC Input | Wire Size | Wire Size | Wire Terminal (Lug) | Protection | ||||||||||||
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Nominal 24/48 VDC1 | 24 - 36 V, 8 A, | AWG 14 | AWG 14 | AMP part number | 15 A | ||||||||||||
Identified by a printed | positive or negative, | (2.0 mm2) | (2.0 mm2) | or equivalent | maximum | ||||||||||||
single or dual sources |
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label near the DC wire |
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terminals: |
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| 36 - 60 V, 4 A, | AWG 18 | AWG 14 | Source DC: Molex part | 15 A | |
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| positive or negative, | (1.0 mm2) | (2.0 mm2)) | number | maximum |
INPUT +/- | single or dual sources |
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| 8 A |
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| Ground: AMP part number |
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| 4 A |
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Nominal 48 VDC2 | 48 - 60 V, 4 A, | AWG 18 | AWG 14 | Source DC: Molex part | 15 A | ||||||||||||
Identification stamped | positive or negative, | (1.0 mm2) | (2.0 mm2) | number | maximum | ||||||||||||
single or dual sources |
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near the DC wire |
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terminals: |
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| Ground: AMP part number |
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| 34119, or equivalent |
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INPUT |
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| 4 A |
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1.The input voltage tolerance limits for nominal
2.The input voltage tolerance limits for nominal
Wiring Procedure for DC Input
To connect the router to a DC power source, perform the following steps:
Step 1 Remove power from the DC circuit. To ensure that power is removed from the DC circuit, locate the circuit breaker for the DC circuit, switch the circuit breaker to the OFF position, and tape the
Tip Secure all power cabling when installing this unit to avoid disturbing
Step 2 Strip the wires to the appropriate length for the terminals. The strip length is 1/8 to 3/16 inch (3 to 5 mm) for Molex number
Step 3 Crimp the terminals to the DC power input wires.
Cisco 3600 Series Routers Hardware Installation Guide
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