OfficeServ 7400 Installation Manual© SAMSUNG Electronics Co., Ltd. IINTRODUCTIONPurposeOfficeServ 7400 is a key phone system proper for mid-small sized office using circuit lineswith 500 subscribers or less. OfficeServ 7400 provides not only the voice call function butalso the data transfer function. This manual describes the condition for OfficeServ 7400system installation and how to install, inspect and operate the system.Document Content and OrganizationThis manual consists of eight chapters and abbreviations. Each chapter is summarized as below.CHAPTER 1. Before InstallingThis chapter describes the checklists, such as the installation site and the grounding & thepower conditions, to be inspected before installing the OfficeServ 7400 system.This chapter also describes the items included in the OfficeServ 7400 package and theinstallation procedure.CHAPTER 2. Installing CabinetsThis chapter describes how to install an OfficeServ 7400 cabinet on the ground or inside arack, depending on the installation environment, and how to connect the grounding wire.CHAPTER 3. Mounting and Replacing BoardsThis chapter describes how to mount or replace various boards of the OfficeServ 7400 system.CHAPTER 4. Connecting External Batteries and RectifiersThis chapter describes how to connect an external battery and a rectifier to the OfficeServ7400 system.CHAPTER 5. Connecting the PowerThis chapter describes how to connect the power to the OfficeServ 7400 system.CHAPTER 6. Connecting C.O. linesThis chapter describes how to connect C.O. lines to the OfficeServ 7400 system.