Interphase Tech iSPAN - Manual (Page 5)

Safety Precautions
The following general safety precautions must be observed during all
phases of operation of this equipment. Failure to comply with these
precautions or with specific warnings elsewhere in this manual violates
safety standards of design, manufacture, and intended use of the
equipment. Interphase Corporation assumes no liability for the user’s
failure to comply with these requirements. As the user of the product,
you must observe all stated warnings and safety precautions in order to
safely operate the equipment in your environment.
Do Not Substitute Parts or Modify Equipment
Because of the danger of introducing additional hazards, do not install
substitute parts or perform any unauthorized modification of the
equipment. Contact your local Interphase representative for service and
repair to ensure that safety features are maintained.
Ground the Instrument
To minimize shock hazard, the equipment chassis and enclosure must be
connected to an electrical ground. The power cable must either be
plugged into an approved three-contact electrical outlet or used with a
three-contact to two-contact adapter, with the grounding wire (green)
firmly connected to an electrical ground (safety ground) at the power
outlet.
Do Not Operate in an Explosive Atmosphere
Do not operate the equipment in the presence of flammable gases or
fumes. Operation of any electrical equipment in such an environment
constitutes a definite safety hazard.
Keep away from Live Circuits
Do not install or replace the component with power cables connected.
Under certain conditions, dangerous voltages may exist even with the
power cable removed. To avoid injuries, always disconnect power and
discharge circuits before touching them.
Telephone Lines Unsafe Voltages
As unsafe voltages (Telecommunication Network Voltages) exist on
ISDN lines, safety precautions must be taken to prevent contact with any
dangerous area of the system.