494 V6100 and V7122 User GuideThe Telephone Company may make changes in the facilities, equipment, operations orprocedures that could affect the operation of the equipment. If this happens the telephonecompany will provide advance notice in order for you to make necessary modifications tomaintain uninterrupted service. Should you experience trouble with this telephoneequipment, contact: 3Com Inc, San Jose, CA USA. Tel: 1 408 411 1175. Do not attempt torepair this equipment!Facility Interface Code: 04DU9.BN, 04DU9.DN, 04DU9.1KN, 4DU9.ISNService Order Code: 6.0NUSOC Jack Type: RJ21X or RJ48CIt this gateway causes harm to the telephone network, the telephone company will notify youin advance that temporary discontinuance of service may be required. But if advance noticeisn’t practical, the telephone company will notify the customer as soon as possible. Also youwill be advised of your right to file complaint with the FCC if you believe it is necessary.Network Information and Intent of UseThe products are for access to ISDN at 2048 kb/s and for access to G.703 Leased lines at2048 kb/s.Network CompatibilityThe products support the Telecom networks in EU that comply with TBR4 and TBR13.Telecommunication SafetyThe safety status of each port is declared and detailed in the table below:Ports Safety StatusE1 or T1 TNV-1Ethernet (100 Base-TX) SELVTNV-1: Telecommunication network voltage circuits whose normal operating voltages do notexceed the limits for SELV under normal operating conditions and on which over voltagesfrom telecommunication networks are possible.SELV: Safety extra low voltage circuit.