Cisco 3800 Series Manuale di avvio rapido - Pagina 17

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Warning

Hazardous network voltages are present in WAN ports regardless of whether power to the router is OFF or ON. To

avoid electric shock, use caution when working near WAN ports. When detaching cables, detach the end away

from the router first. Statement 1026

Warning

This unit is intended for installation in restricted access areas. A restricted access area can be accessed only

through the use of a special tool, lock and key, or other means of security. Statement 1017

Warning

Do not work on the system or connect or disconnect cables during periods of lightning activity. Statement 1001

Caution

To comply with Telcordia NEBS GR-1089-Core and EN 300386 requirements, you must use foil twisted-pair cable

that is properly grounded at both ends.

Power Connections

This section describes procedures for connecting your router to AC power, DC power, and backup power. See the appropriate

subsection:

• Connecting the Routers to AC Power, page 17

• Connecting the Router to DC Power, page 18

• Connecting the Router to Backup Power, page 23

Warning

Read the installation instructions before connecting the system to the power source. Statement 1004

The installation must comply with all required electrical codes applicable at the installation site.

Note

Connecting the Routers to AC Power

If your router uses AC power, connect it to a 15 A, 120 VAC (240 VAC, 10 A) circuit with overcurrent protection. If backup

power is required, see the "Connecting the Router to Backup Power" section on page 23.

The input voltage tolerance limits for AC power are 85 and 264 VAC.

Note

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

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, 15 A (240 VAC, 10 A). Statement 1005