Cisco ASR 903 Router Hardware Installation Guide
OL-25178-05
Chapter2 Preparing for Installation
Safety Guidelines
Warning
Do not use this product near water; for example, near a bath tub, wash bowl, kitchen sink or laundry
tub, in a wet basement, or near a swimming pool.
Statement 1035
Warning
Never install telephone jacks in wet locations unless the jack is specifically designed for
wetlocations.
Statement 1036
Warning
Before opening the unit, disconnect the telephone-network cables to avoid contact with
telephone-network voltages.
Statement 1041
Warning
This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260.
Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The
telecommunications lines must be disconnected 1) before unplugging the main power connector or 2)
while the housing is open, or both.
Statement 1043
Warning
This product requires short-circuit (overturned) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations.
Statement 1045
Warning
When installing or replacing the unit, the ground connection must always be made first and
disconnected last.
Statement 1046
Warning
Never install an AC power module and a DC power module in the same chassis.
Statement 1050
Warning
Failure to securely tighten the power and relay connector captive screws can result in an electrical
arc if the connector is accidentally removed.
Statement 1058
Warning
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during
normal use.
Warning
If you connect or disconnect the console cable with power applied to the switch or any device on the
network, an electrical arc can occur. This could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is nonhazardous before proceeding. To verify
switch operation, perform POST on the switch in a nonhazardous location before installation.
Statement 1065
Warning
Installation of the equipment must comply with local and national electrical codes.
Statement 1074