TELEPHONE CONNECTION REQUIREMENTSThe Federal Communications Commission (FCC) has established rules which permit the DCS to be connecteddirectly to the telephone network using telephone company network access jacks usually referred to as“Registered Jacks.”RINGER EQUIVALENCE (REN)The REN is used to determine the quantity of devices which may be connected to the telephone line. ExcessiveRENs on the telephone line may result in the devices not ringing in response to an incoming call. In most but notall areas, the sum of the RENs should not exceed 5.0.To be certain of the number of devices that may be connect-ed to the line, as determined by the number of RENs, contact the telephone company to determine the maximumREN for the calling area.INCIDENCE OF HARMIf the terminal equipment, the OfficeServ 500, causes harm to the telephone network, the telephone company willnotify you in advance that temporary discontinuance of service may be required. But if advance notice is not prac-tical, the telephone company will notify the customer as soon as possible. Also, you will be advised of your rightto file a complaint with the FCC if you believe it is necessary.CHANGES TO TELEPHONE COMPANY EQUIPMENT OR FACILITIESThe telephone company may make changes in its facilities, equipment, operations or procedures that could affectthe operation of the equipment. If this happens, the telephone company will provide advance notice in order foryou to make the necessary modifications so that you may maintain uninterrupted service.SERVICE CENTERIf trouble is experienced with the OfficeServ 500, please contact your local SAMSUNG TELECOMMUNICATIONSAMERICA for repair or warranty information. If the trouble is causing harm to the telephone network, the tele-phone company may request that you remove the equipment from the network until the problem is resolved.5.3 TELEPHONE COMPANY INTERFACESCIRCUITTYPEOFFICESERV 500CARD TYPEFACILITYINTERFACE CODENETWORKJACKLOOP START LINE TRK-BTRK-B1TRK-C1T1-SFT1-ESFO2LS204DU9-DN04DU9-1KNRJ21XRJ11CRJ14CRJ48COFF PREMISES EXTENSION SLI-4 circuit board only OL13C RJ21XRJ11CRJ14CE911 E911 O2RV2-OISDN-PRI TE/PRI 04DU9-1KN RJ48CISDN-BRI 4BRI 02155 NT15.2