Cisco CISCO3825-AC-IP Hardware Guide - Page 50
Connecting Routers to AC Power, DC Wiring Requirements for Cisco3800 Series Routers
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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. NEBS-compliant grounding satisfies this requirement. Statement 284 Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045 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 short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 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 short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 120 VAC, 30 A (240 VAC, 20 A). Statement 1005 Connecting Routers to DC Power If your router has a DC-input power supply, follow the directions in this section for proper wiring. If backup power is required, see the "Connecting Routers to Backup Power" section on page 27. DC Wiring Requirements for Cisco 3800 Series Routers Warning Use copper conductors only. Statement 1025 Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building installation. Install only in accordance with national and local wiring regulations. Statement 1045 Connecting Cables to Cisco 3800 Series Routers 20 OL-5970-02