2-4
Cisco MWR 1941-DC-A Mobile Wireless Edge Router Hardware Installation Guide
OL-7872-04
Chapter 2 Preparing to Install the Router
Before You Begin
Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) can damage equipment and impair electrical circuitry. ESD can occur
when electronic printed circuit cards are improperly handled and can cause complete or intermittent
failures. Always follow ESD prevention procedures when removing and replacing modules:
•
Ensure that the router chassis is electrically connected to earth ground.
•
Wear an ESD-preventive wrist strap, ensuring that it makes good skin contact. Connect the clip to
an unpainted surface of the chassis frame to channel unwanted ESD voltages safely to ground. To
guard against ESD damage and shocks, the wrist strap and cord must operate effectively.
•
If no wrist strap is available, ground yourself by touching a metal part of the chassis.
Caution
For the safety of your equipment, periodically check the resistance value of the antistatic wrist strap. It
should be between 1 and 10 Mohm.
Before You Begin
Before installing the Cisco MWR 1941-DC-A router, it is important to prepare for installation by:
•
Preparing the site (site planning) and reviewing the installation plans or method of procedures
(MOPs)
•
Unpacking and inspecting the Cisco MWR 1941-DC-A router
•
Gathering tools and test equipment required to properly install the Cisco MWR 1941-DC-A router
Site Planning
Typically, you should have prepared the installation site beforehand. As part of your preparation, obtain
a floor plan of the site and the equipment rack where the Cisco MWR 1941-DC-A router will be housed.
Determine the location of any existing routers and their interconnections, including communications and
power. Following the air flow guidelines (see the
“Air Flow Guidelines” section on page 2-5
) ensures
that adequate cooling air is provided to the Cisco MWR 1941-DC-A router.
All personnel involved in the installation of the Cisco MWR 1941-DC-A router including installers,
engineers, and supervisors should participate in the preparation of a MOP for approval by the customer.
Power Supply Considerations
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 (see the
“Power Supply” section on page 1-12
for power
requirements).
Warning
This equipment has been designed for connection to TN and IT power systems.
Statement 16