3com V7111 User Manual

 

Installation and service of this unit must only be performed by authorized, qualified service 
personnel. To avoid risk of fire use 26AWG or higher wiring to connect the FXS telecom 
ports. 

The safety status of each port on the gateway is declared and detailed in the table below: 

 

Ethernet (100 Base-TX) 

SELV 

FXS TNV-3 

 

TNV-3: Circuit whose normal operating voltages exceeds the limits for an SELV circuit under 
normal operating conditions and on which over voltages from Telecommunication Networks 
are possible 

SELV:  Safety extra low voltage circuit. 

This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide 
reasonable protection against harmful interference in a residential installation. This 
equipment generates uses and can and can radiate radio frequency energy and, if not 
installed and used in accordance with the instructions, may cause harmful interference to 
radio communications. However there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to radio or television 
reception, which can be determined by turning the equipment off and on, the user is 
encouraged to try to correct the interference by one or more of the following measures: 

ƒ

  Reorient or relocate the receiving antenna. 

ƒ

  Increase the separation between the equipment and receiver. 

ƒ

  Connect the equipment into an outlet on a circuit different from that to which the receiver 

is connected. 

ƒ

  Consult the dealer or an experienced radio/TV technician for help. 

 
 

3Com VCX V7111 Analog Gateway Installation Guide 

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