10 3Com VCX V7111 VoIP SIP Gateways User ManualTelecommunication SafetyThe safety status of each port on the device is declared and detailed in the following table:Table 1 Safety Status IndicatorsPorts Safety StatusEthernet (100 Base-T) SELVFXS TNV-3 TNV-3 — Circuit whose normal operating voltages exceeds the limits for an SELV circuitunder normal operating conditions and on which over voltages from TelecommunicationNetworks are possible. SELV — Safety extra low voltage circuit.How to Use This GuideThis book covers these topics: Chapter1: VCX V7111/SIP Overview Chapter 2: 2, 4, or 8 Channel VCX V7111 Hardware Installation Chapter 3: VCX V7111 24FXS Hardware Installation Chapter 4: Software Installation Chapter 5: Profiling and Operation Chapter 6: Provisioning Chapter 7: Device Management Chapter 8: Diagnostics Chapter 9: Specifications Appendix A: BootP/TFTP Configuration Utility Appendix B: RTP/RTCP Payload Types Appendix C: DTMF, Fax, and Modem Modes Appendix D: DHCP Server Configuration Appendix E: Obtaining Support for Your 3Com Products
