Zhone EtherXtend 3300 Series, User Manual

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Safety, Regulations, and CertificationsSafety, Regulations, and Certifications
18
EtherXtend User’s Guide
Do not block system air vents; this will deprive the system of the airflow
required for proper cooling. Sufficient clearance must exist on all sides of the
rack to permit equipment access. Connect the system to the power supply
circuit as described in this document. Do not overload the system or power
supply circuit. Ensure that proper system grounding is performed and
maintained.
Important safety instructions
Read and follow all warning notices and instructions
marked on the product or included in the manual.
1 Slots and openings in the product are provided for ventilation. To ensure
reliable operation of the product and to protect it from overheating, these
slots and openings must not be blocked or covered.
2
Do not allow anything to rest on the power cord and do not locate the
product where persons will walk on the power cord.
3
Do not attempt to service this product yourself, as opening or removing
covers may expose you to hazardous voltage or to other risks. Refer all
servicing to qualified service personnel.
4 General purpose cables are used with this product for connection to the
network. Special cables, which may be required by the regulatory
inspection authority for the installation site, are the responsibility of the
customer. Use a UL Listed, CSA certified (or a cable that is certified in
the country in which it is being installed), minimum No. 26 AWG
(.163mm
2
) line cord for connection to the Digital Subscriber Line (DSL)
network.
5 When installed, 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.
6 A rare phenomenon can create a voltage potential between the earth
grounds of two or more buildings. If products installed in separate
buildings are interconnected, the voltage potential may cause a hazardous
condition. Consult a qualified electrical consultant to determine whether
or not this phenomenon exists and, if necessary, implement corrective
action prior to interconnecting the products.
7 When using a certified class II transformer/Input power to this product
must be provided with one of the following: (1) a NRTL certified power
source with a Class 2 output for use in North America, or (2) a certified
power source, with a Safety Extra Low Voltage (SELV) output having a
maximum of 240 VA available, for use in the country of installation.