All personnel involved in the installation of the router including installers, engineers, and supervisors should
participate in the preparation of a Method of Procedure (MOP) for approval by the customer.
Site Environment
Every network application is a unique installation. Before installing the Cisco ASR 901S Series Aggregation
Services Router, you should perform a site survey to determine the optimum use of networking components
and to maximize range, coverage, and network performance.
Consider the following operating and environmental conditions when performing a site survey:
•
Data rates
—
Sensitivity and range are inversely proportional to data bit rates. The maximum radio range
is achieved at the lowest workable data rate. A decrease in receiver sensitivity occurs as the radio data
increases.
•
Antenna type and placement
—
Proper antenna configuration is a critical factor in maximizing radio
range. As a general rule, range increases in proportion to antenna height. However, do not place the
antenna higher than necessary, because the extra height also increases potential interference from other
unlicensed radio systems and decreases the wireless coverage from the ground.
•
Physical environment
—
Clear or open areas provide better radio range than closed or filled areas.
Always follow ESD-prevention procedures described in
Preventing Electrostatic Discharge Damage,
on page 3
to avoid damage to equipment. Damage from static discharge can cause immediate or
intermittent equipment failure.
•
Obstructions
—
Physical obstructions such as buildings, trees, or hills can hinder performance of wireless
devices. Avoid locating the devices in a location where there is an obstruction between the sending and
receiving antennas.
Method of Procedure
Part of site preparation includes reviewing installation plans or method of procedures (MOPs). An example
of a MOP that includes pre-installation checklist of tasks, considerations to address and agree upon before
proceeding with the installation, is as follows:
•
Read this hardware installation guide.
•
Assign personnel.
•
Determine protection requirements for personnel, equipment, and tools.
•
Evaluate potential hazards that may affect service.
•
Schedule time for installation.
•
Determine space requirements.
•
Determine power requirements.
•
Identify required procedures or tests.
•
Make a preliminary plan that locates each Cisco ASR 901S Series Aggregation Services Router that
you plan to install.
•
Verify the list of replaceable parts for installation (screws, bolts, washers, and so on).
Cisco ASR 901S Series Aggregation Services Router Hardware Installation Guide
OL-29732-02
5
Preparing to Install the Router
Site Environment
