Router Environmental Requirements; Power Guidelines And Requirements; Network Cabling Specifications; Preparing For Network Connections - Cisco 1120 Installation Manual

Installation Safety and Site Preparation

Router Environmental Requirements

Router Environmental Requirements
The location of your router and the layout of the substation environment are important considerations for proper router
operation. Equipment placed too close together, inadequate ventilation, and inaccessible panels can cause malfunctions
and shutdowns, and can make maintenance difficult.
Install the router so that you can access both the module-side and the cable-side panels.
When planning your site layout and equipment locations, refer to the
currently experiencing shutdowns or an unusually high number of errors with your existing equipment, these precautions
and recommendations may help you isolate the cause of failure and prevent future problems.

Ensure that the room where your router operates has adequate air circulation. Electrical equipment generates heat.
Without adequate air circulation, ambient air temperature may not cool equipment to acceptable operating
temperatures.

Always follow ESD-prevention procedures described in the
avoid damage to equipment. Damage from static discharge can cause immediate or intermittent equipment failure.

Ensure that the chassis cover and module cable side panels are secure. All empty module slots and power supply
bays must have filler panels installed.

When equipment installed in a rack (particularly in an enclosed rack) fails, try operating the equipment by itself, if
possible. Power off other equipment in the rack (and in adjacent racks) to allow the router under test a maximum of
cooling air and clean power.

Power Guidelines and Requirements

Check the power at your site to ensure that you are receiving "clean" power (free of spikes and noise). Install a power
conditioner if necessary.
The AC power supply includes the autoselect feature for either 110 V or 220 V operation.

Network Cabling Specifications

The following sections describe the cables needed to install the router:

Preparing for Network Connections, page 8

Preparing for Network Connections, page 8

Preparing for Network Connections

When setting up your router, consider distance limitations and potential electromagnetic interference (EMI) as defined by
the applicable local and international regulations.
Network connection considerations are provided for several types of network interfaces and are described in the
following sections:

Ethernet Connections, page 8

Serial Connections, page 9

Ethernet Connections

The IEEE has established Ethernet as standard IEEE 802.3. The router supports the following Ethernet implementations:
General Site Requirements, page
Preventing Electrostatic Discharge Damage, page
8
7. If you are
7, to