Installation 2-7To Terminal Board or Modular Jacksfrom the Central OfficeT RT: TipR: RingView of TEL Jack (Outside (CO) Line)Connection1. Insert the modular plugs of the telephone line cords (2-conductor wiring) into themodular jacks (CO 1 through 3) on the system.2. Connect the line cords to the terminal board or the modular jacks from the Central Office.2.7 Outside (CO) Line ConnectionInstalling Lightning ProtectorsA lightning protector is a device to be installed on an outside (CO) line to prevent adangerous surge from entering the building and damaging the equipment.A dangerous surge can occur if a telephone line comes in contact with a power line.Problems due to lightning surges has been steadily increasing with the development ofelectronic equipment.In many countries, there are regulations requiring the installation of a lightning protector. Alightning strike to a telephone cable which is 10 m above ground can be as high as 200,000volts.This system should be installed with lightning protectors. In addition, grounding(connection to earth ground) is very important to protect the system (+ 2.5, Frame GroundConnection).Recommended lightning protectors• TELESPIKE BLOK MODEL TSB (TRIPPE MFG. CO.)• SPIKE BLOK MODEL SK6-0 (TRIPPE MFG. CO.)• Super MAX™ (PANAMAX)• MP1 (ITW LINK)* The illustration on this page is a KX-TA308.
