PART 5. GENERAL USER INFORMATION5.1 RADIO FREQUENCY INTERFERENCEWARNING: This equipment has been tested and found to comply with the limits for a Class A digital device, pur-suant to Part 15 of the FCC rules.These limits are designed to provide reasonable protection against harmful inter-ference when the equipment is operated in a commercial environment. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordance with the instruction manual, it maycause harmful interference to radio communications. Operation of this equipment in a residential area is likely tocause harmful interference in which case the user will be required to correct the interference at his own expense.5.2 FCC REQUIREMENTSThe OfficeServ 7100 electronic telephone system complies with Part 68 of the Federal CommunicationsCommission Rules and Regulations.UNAUTHORIZED MODIFICATIONSAny changes or modifications performed on this equipment that are not expressly approved in writing by SAM-SUNG TELECOMMUNICATIONS AMERICA could cause noncompliance with the FCC rules and void the user’sauthority to operate the equipment.NOTE: Allowing this equipment to be operated in such a manner as to not provide for proper answer supervisionis a violation of Part 68 of the FCC’s rules.TELEPHONE CONNECTION REQUIREMENTSA plug and jack used to connect this equipment to the premises wiring and telephone network must comply withthe applicable FCC Part 68 rules and requirements adopted by the ACTA. A compliant telephone cord and mod-ular plug is provided with this product. It is designed to be connected to a compatible modular jack that is alsocompliant. See installation instructions for details.5.15.3 TELEPHONE COMPANY INTERFACESCIRCUITTYPECARDTYPEFACILITYINTERFACE CODENETWORKJACKLOOP START LINE4TRM8TRKTEPRIa02LS202LS204DU9.DN04DU9.1KN04DU9.1SN04DU9.1SN (PRI)RJ45SRJ45SRJ48CDID LINE TEPRI 04DU9.BN RJ48C