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4929 DSLAM Installation and User’s Guide 5
transponders have been installed. Do not install laser products whose class rating is greater
than 1. Refer to all important safety instructions that accompanied the transceiver prior to
installation. Only laser Class 1 devices certified for use in the country of installation by the
cognizant agency are to be utilized in this product. Also, laser warnings are to be provided
in accordance with IEC 60825-1 and its Amendments 1 and 2, as well as 21 CFR 1010 and
1040.10(g).
10. General purpose cables are described for use with this product. Special cables, which may
be required by the regulatory inspection authority for the installation site, are the
responsibility of the customer. To reduce the risk of fire, use a UL Listed or CSA
Certified, minimum No. 26 AWG (0.128 mm
2
) telecommunication cable, or comparable
cables certified for use in the country of installation.
11. The equipment is intended for installation in a maximum 149° F (65° C) ambient
temperature, in an environment that is free of dust and dirt.
12. Do not physically stack more than eight (8) units high. Physical stability has not been
evaluated for stacking higher than eight units, and any configuration greater than eight
may result in an unstable (tip-over) condition. Ensure that the four (4) rubber feet supplied
with the product have been installed on the bottom of each unit prior to stacking any 4929
units on top of one another.
13. In addition, if the equipment is to be used with telecommunications circuits, take the
following precautions:
— Never install telephone wiring during a lightning storm.
— Never install telephone jacks in wet locations unless the jack is specifically designed
for wet locations.
— Never touch uninsulated telephone wires or terminals unless the telephone line has
been disconnected at the network interface.
— Use caution when installing or modifying telephone lines.
— Avoid using a telephone (other than a cordless type) during an electrical storm. There
may be a remote risk of electric shock from lightning.
— Do not use the telephone to report a gas leak in the vicinity of the leak.
14. When installed in the final configuration, the product must comply with the applicable
Safety Standards and regulatory requirements of the country in which it is installed. If
necessary, consult with the appropriate regulatory agencies and inspection authorities to
ensure compliance.
EMI Notices
UNITED STATES – EMI NOTICE:
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment is
operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his
own expense.
The authority to operate this equipment is conditioned by the requirements that no
modifications will be made to the equipment unless the changes or modifications are
expressly approved by the manufacturer.
If the equipment includes a ferrite choke or chokes, they must be installed per the
installation instructions.
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