Compaq Armada 7800 Reference Manual page 250

Only authorized technicians trained by Compaq should attempt to
repair this equipment. All troubleshooting and repair procedures
are detailed to allow only subassembly/module level repair.
Because of the complexity of the individual boards and sub-
assemblies, no one should attempt to make repairs at the
component level or to make modifications to any printed wiring
board. Improper repairs can create a safety hazard.
Safety Precautions for Modems
Always follow these basic safety precautions when using a
modem or telephone that is not cordless.
WARNING:
!
or fire:
U.S. Regulations Governing
the Use of Modems
This equipment complies with Part 68 of the FCC rules. Located
on the bottom of the computer is a label that contains, among
other information, the FCC Registration Number and Ringer
Equivalence Number (REN) for this equipment. Upon request,
you must provide this information to your telephone company.
The REN is useful to determine the quantity of devices you may
connect to your telephone line and still have all of those devices
ring when your telephone number is called. In most areas (but not
all), the sum of the RENs of all devices connected to one line
should not exceed five (5.0). To be certain of the number of
devices you may connect to your telephone line, as determined by
the REN, you should contact your local telephone company to
determine the maximum REN for your calling area.
To reduce the risk of personal injury, electric shock,
Never connect or use a modem or telephone during a lightning
storm. There may be a remote risk of electric shock from
lightning.
Never connect or use a modem or telephone in a wet location.
Never use a modem or telephone to report a gas leak in the
vicinity of the leak.
Always disconnect the modem cable before opening the
equipment enclosure or touching an uninsulated modem cable,
jack, or internal components.
Regulatory Notices B-7