Manual

WI-I/O 9-x Wireless Module User Manual v2.16
WI-I/O-EX-1-S-x Serial Module
Page 4
Important Notice
Weidmuller, Inc. products are designed to be used in industrial environments, by experienced
industrial engineering personnel with adequate knowledge of safety design considerations.
Weidmuller, Inc. radio products are used on unprotected license-free radio bands with radio noise and
interference. The products are designed to operate in the presence of noise and interference, however
in an extreme case, radio noise and interference could cause product operation delays or operation
failure. Like all industrial electronic products, Weidmuller, Inc. products can fail in a variety of
modes due to misuse, age, or malfunction. We recommend that users and designers design systems
using design techniques intended to prevent personal injury or damage during product operation, and
provide failure tolerant systems to prevent personal injury or damage in the event of product failure.
Designers must warn users of the equipment or systems if adequate protection against failure has not
been included in the system design. Designers must include this Important Notice in operating
procedures and system manuals.
These products should not be used in non-industrial applications, or life-support systems, without
consulting Weidmuller, Inc. first.
1. For WI-I/O 9-x modules, a radio licence is not required in many countries, provided the module
is installed using the antenna and equipment configuration complying with the country’s
regulations.. Check with your local distributor for further information on regulations.
2. For WI-I/O 9-x modules, operation is authorised by the radio frequency regulatory authority in
your country on a non-protection basis. Although all care is taken in the design of these units,
there is no responsibility taken for sources of external interference. The WI-I/O 9-x intelligent
communications protocol aims to correct communication errors due to interference and to
retransmit the required output conditions regularly. However some delay in the operation of
outputs may occur during periods of interference. Systems should be designed to be tolerant of
these delays.
3. To avoid the risk of electrocution, the antenna, antenna cable, serial cables and all terminals of
the WI-I/O 9-x_WI-I/O-EX-1-S-x module should be electrically protected. To provide
maximum surge and lightning protection, the module should be connected to a suitable earth
and the antenna, antenna cable, serial cables and the module should be installed as
recommended in the Installation Guide.
4. To avoid accidents during maintenance or adjustment of remotely controlled equipment, all
equipment should be first disconnected from the WI-I/O 9-x_WI-I/O-EX-1-S-x module during
these adjustments. Equipment should carry clear markings to indicate remote or automatic
operation. E.g. "This equipment is remotely controlled and may start without warning. Isolate
at the switchboard before attempting adjustments."
5. The WI-I/O 9-x_WI-I/O-EX-1-S-x module is not suitable for use in explosive environments
without additional protection. These modules are approved for use in Class 1 Division 2 areas
in North America.