3Com® VCX V7111 VoIP Gateway User Guide 387CHAPTER 16: SELECTED T ECHNICALSPECIFICATIONSV7111 1x PORT SpecificationsTable 101 V7111 1x PORT Functional SpecificationsChannel CapacityAvailable PortsV7111 12 PORT 2 ports*V7111 14 PORT 4 portsV7111 18 PORT 8 ports* The V7111 12 PORT differs from the V7111 14 PORT and V7111 18 PORT.Its configuration excludes the RS-232 connector, the Lifeline option and outdoorprotection.V7111 1x PORT/FXS FunctionalityShort or Long Haul (Automatic Detection):REN2: Up to 10 km (32,800 feet) using 24 AWG line.REN5: Up to 3.5 km (11,400 feet) using 24 AWG line.The lines were tested under the following conditions: ring voltagegreater than 30 Vrms, offhook loop current greater than 20 mA (alllines ring simultaneously).V7111 1x PORT includes lightning and high voltage protection for outdooroperation.Caller ID generation: Bellcore GR-30-CORE Type 1 using Bell 202 FSKmodulation, ETSI Type 1, NTT, Denmark, India, Brazil, British and DTMF ETSICID (ETS 300-659-1).Programmable Line Characteristics: Battery feed, line current, hook thresholds,AC impedance matching, hybrid balance, Tx & Rx frequency response, Tx & RxGains.For a specific coefficient file contact 3Com.Programmable ringing signal. Up to three cadences and frequency 15 to 200Hz.Over-temperature protection for abnormal situations as shorted lines.FXS CapabilitiesLoop-backs for testing and maintenance.V7111 1x PORT/FXO Functionality
