1.6SAFETY WHEN WORKING WITH ELECTRICITY
•This device contains no user serviceable parts. This device can only be repaired by qualified service per- sonnel.
•Do not open the device when the power cord is con- nected. For systems without a power switch and without an external power adapter, line voltages are present within the device when the power cord is connected.
•For devices with an external power adapter, the power adapter shall be a listed Limited Power Source. The mains outlet that is utilized to power the device shall be within 10 feet (3 meters) of the device, shall be easily accessible, and protected by a circuit breaker in com- pliance with local regulatory requirements.
•For AC powered devices, ensure that the power cable used meets all applicable standards for the country in which it is to be installed.
•For AC powered devices which have 3 conductor
| power plugs (L1, L2 & GND or Hot, Neutral & | |
WARNING | Safety/Protective Ground), the wall outlet (or socket) | |
must have an earth ground. | ||
|
•For DC powered devices, ensure that the interconnect- ing cables are rated for proper voltage, current, antici- pated temperature, flammability, and mechanical serviceability.
•WAN, LAN & PSTN ports (connections) may have haz- ardous voltages present regardless of whether the device is powered ON or OFF. PSTN relates to inter- faces such as telephone lines, FXS, FXO, DSL, xDSL, T1, E1, ISDN, Voice, etc. These are known as “hazard- ous network voltages” and to avoid electric shock use caution when working near these ports. When discon- necting cables for these ports, detach the far end con- nection first.
•Do not work on the device or connect or disconnect cables during periods of lightning activity.
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