Site Requirements; Ac And Dc Power - Cisco 7000 Hardware Installation And Maintenance

•
When installing an RP, SP (or SSP), or interface processor, use the ejector levers to properly seat
the bus connectors in the backplane, then tighten both top and bottom captive installation screws.
These screws prevent accidental removal, provide proper grounding for the system, and help to
ensure that the bus connectors are seated in the backplane.
•
When removing an RP, SP (or SSP), or interface processor, use the ejectors to release the bus
connectors from the backplane. Grasp the handle and pull the carrier out slowly, using your hand
along the bottom of the carrier to guide it straight out of the slot.
•
Handle carriers by the handles and carrier edges only; avoid touching the board or any connector
pins.
•
When removing an RP, SP (or SSP), interface processor, arbiter board, or LED board, place the
removed component board-side-up on an antistatic surface or in a static shielding bag. If the
component will be returned to the factory, immediately place it in a static shielding bag.
•
Handle bare boards (such as the arbiter board) by the edges only.
•
Avoid contact between the board or interface processor and clothing. The wrist strap only
protects the card from ESD voltages on the body; ESD voltages on clothing can still cause
damage.
Caution
should be within the range of 1 and 10 megohms.

Site Requirements

The environmental monitor in the router protects the system and components from potential damage
from overvoltage and overtemperature conditions. To assure normal operation and avoid
unnecessary maintenance, plan your site configuration and prepare your site before installation.
After installation, make sure the site maintains an ambient temperature of 32°F through 104°F
(0°C through 40°C), and keep the area around the chassis as free from dust as is practical.
The following sections address the site environment requirements for the router chassis.

AC and DC Power

The 700W, AC-input power supply uses a power factor corrector (PFC) that allows it to operate on
input voltage and current within the ranges of 100 through 240 VAC and 47 through 63 Hz. The
700W, DC-input power supply allows the Cisco 7000 to operate between –40 and –72 VDC
(–48 VDC nominal).
A second, identical power supply is also present in chassis configured with the redundant power
option. Redundant power assures that power to the chassis continues uninterrupted in the event that
one power supply fails. It also provides uninterrupted power in the event the input power line fails
only if the power supplies are connected to separate input lines. If only one input line is available,
and you must connect both power supplies to the same source, the redundant power supply will
provide continuous power in the event the first power supply fails. It cannot, however, provide power
backup in the event that the input power fails. Table 1-1 lists system power specifications including
input voltage and operating frequency ranges.
Caution
chassis. Your Cisco 7000 must have either DC-input or AC-input power supplies.
For safety, periodically check the resistance value of the antistatic strap. The measurement
To prevent problems, do not mix DC-input and AC-input power supplies in the same
Site Requirements
Preparing for Installation 2-71