
Power Connections
Connecting Routers to AC Power
If your router uses AC power, connect it to a 15 A, 120 VAC (or 10 A, 240 VAC) circuit with overcurrent protection. If backup power is required, see the “Connecting Routers to Backup Power” section on page 27.
Note The input voltage tolerance limits for AC power are 85 and 264 VAC.
Warning AC connected units must have a permanent ground connection in addition to the power cable ground wire.
Warning This product requires
The following warning applies to both AC power supplies and AC power supplies with IP phone power in the Cisco 3825 router:
Warning This product relies on the building’s installation for
120 VAC, 45 A (240 VAC, 30 A). Statement 1005
The following warning applies to both AC power supplies and AC power supplies with IP phone power in the Cisco 3845 router:
Warning This product relies on the building’s installation for
120 VAC, 30 A (240 VAC, 20 A). Statement 1005
Connecting Routers to DC Power
If your router has a
DC Wiring Requirements for Cisco 3800 Series Routers
Warning Use copper conductors only. Statement 1025
Warning This product requires
Connecting Cables to Cisco 3800 Series Routers
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