OfficeServ 7200 Installation Manual© SAMSUNG Electronics Co., Ltd. 6-1CHAPTER 6. Connecting C.O. LinesThis chapter describes how to connect C.O. lines to the OfficeServ 7200 after installation.6.1 Line ConditionsCautions for connecting C.O. lines are as follows: Cables with AWG #24 or AWG #26 should be used as subscriber lines. When wiring cables in high-humidity areas, remove moisture before wiring. Cables should be handled carefully to prevent any changes or damages. Subscriber lines should be kept indoors if possible. High voltage power lines should not be wired near a subscriber line.Leak resistance for C.O. lines connected to the OfficeServ 7200 is as follows:Table 6.1 OfficeServ 7200 Line ConditionsLine Condition Leak ResistanceLeak Resistance Between Lines 20 k or higherLeak Resistance Between Grounds 20 k or higher