Route the cables so that they do not put a strain on the connectors or mounting hardware.

Do not operate the system unless all cards, faceplates, front covers, and rear covers are in place.

To avoid electric shock, use caution when working near WAN ports.

When detaching cables, detach the end away from the unit first.

Never defeat the ground conductor or operate the equipment in the absence of a suitably installed ground conductor.

Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.

A restricted access area can be accessed only through the use of a special tool, lock and key, or other means of security.

Skilled personQualified personnel is someone who has training or experience in the equipment technology and understand potential hazards when working with equipment.

A terminal emulation program is required to establish communication between the router and a PC.

The new slots accommodate new modules and interface cards; SM-Xs, NIMs, ISCs, PVDM4s, and the Cisco E-Series Server modules.

See the Slots, Subslots (Bay), Ports, and Interfaces in Cisco 4000 Series ISRs section for slot and port numbering.

See the Licensing section of the Software Configuration Guide for the Cisco 4400 and Cisco 4300 Series ISRs.

If the final installation site is not ready as yet, keep the chassis in its shipping container to prevent accidental damage.

When you unpack the containers, check the packing list to ensure that you received all of the items on the list.

Ideally, you install modules when you have the best access to the back panel of the router.

Internal modules and FRUs, such as SMs, NIMs or Packet Voice Digital Signal Processor Module (PVDM4s), Compact Flash Cards, and fan trays should be installed before rack-mounting.

Excessive distributed weight of more than 10 pounds, or pound point load of.

For placing the router on a desktop, keep at least 1 inch (2.54 cm) of clear space beside the cooling inlet and exhaust vents.

For the chassis ground connection procedures, see the Chassis Grounding section.

You cannot wall mount the Cisco 4461, 4451, and 4351 ISR as these routers do not support wall mounting.

The recommended torque is 15 to 18 inch-lb (1.7 to 2.0 N-m).

The screws must be long enough to penetrate at least 1.5 inches (38.1 mm) into the supporting wood or metal wall stud.

Cisco Usb Console Cable Driver