Samsung IPX-S300B System Description page 6

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Every wire for communication should be larger than 26 AWG.
Double pole/neutral fusing.
Underwriters Laboratories
The IPX-S300B has been tested to comply with Safety Standards in the United States and
Canada. This system is listed with Underwriters Laboratories. The cUL Mark is separately
shown on the label.
Installation Safety Guidelines and Warnings
Safety Recommendations
The Safety Warnings that appear in this document (such as the one below) indicate a
procedure that can harm you if not done correctly.
Electric hazard exists. Verify the power is turned off. Do not work on energized
equipment. Working on energized equipment can result in serious electrical
shock.
To avoid electric shock, do not connect Safety Extra-Low Voltage (SELV) circuits
(found in LAN ports) to Telephone-Network Voltage (TNV) circuits (found in WAN
ports).
This equipment must be installed and maintained by properly trained service
personnel. Make sure the proper electrical service is available before plugging the
unit and turning it on. Disconnect the telecommunication lines before unplugging
the main power connector.
Cover Panels
Do not operate the IPX-S300B with missing blank faceplates and cover panels.
These covers prevent exposure to hazardous voltages and currents inside the chassis.
They are important to maintaining proper air flow through the chassis. They also prevent
electromagnetic interference (EMI) that might disrupt other equipment.
Laser radiation and EMI are present when the router cover panel is open.
© SAMSUNG Electronics Co., Ltd.
page 6 of 162