6-3
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 6 Install and Upgrade Internal Modules and FRUs
Safety Warnings
Warning
Before working on equipment that is connected to power lines, remove jewelry (including rings,
necklaces, and watches). Metal objects will heat up when connected to power and ground and can
cause serious burns or weld the metal object to the terminals.
Statement 43
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 wet
locations.
Statement 1036
Warning
Never touch uninsulated telephone wires or terminals unless the telephone line has been
disconnected at the network interface.
Statement 1037
Warning
Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a
remote risk of electric shock from lightning.
Statement 1038
Warning
To report a gas leak, do not use a telephone in the vicinity of the leak.
Statement 1039
Warning
There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only
with the same or equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instructions.
Statement 1015
Warning
Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference
(EMI) that might disrupt other equipment; and they direct the flow of cooling air through the
chassis. Do not operate the system unless all cards, faceplates, front covers, and rear covers are
in place.
Statement 1029
Warning
For connections outside the building where the equipment is installed, the following ports must
be connected through an approved network termination unit with integral circuit protection.
T1 SFP
Statement 1044
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