CHAPTER 2. OfficeServ 7400 Hardware2-46 © Samsung Business Communications2.6 Additional DevicesThis section describes the types and features of optional devices that can be connectedwhen the OfficeServ 7400 is installed.2.6.1 On Hold/Background Sound SourceExternal sound sources (for example, cassette recorders, radios, CD players) can be con-nected to provide addition sources of sound to the basic tones provided by the system forbackground music, music on hold or announcements.2.6.2 External SpeakersThe OfficeServ 7400 can be connected with external units such as amplifiers or speakers inaddition to the phones’ internal speakers. The external units are connected via the MISC1port of the MIS module, an optional module that can be mounted on the LP40 controlmodule.2.6.3 Loud BellThe Loud Bell allows users to hear ring signals from outside lines using amplifiers or ex-ternal speakers. The Loud Bell is connected via the MISC1 port of the MIS module, an op-tional module that can be mounted on the LP40 control module. When the secondary calldevice is connected, a call signal rings from the phone assigned as the ring pair in MMC205 (Assign Loud Bell). Refer to the OfficeServ 7400 Programming Guide for details.2.6.4 Common BellThe Common Bell is a ring that can be specified when a station group is set. Once a stationin a group rings, other stations in the group ring. The Common Bell is connected via theMISC1 port of the MIS module, an optional module that can be mounted on the LP40 con-trol module.2.6.5 OfficeServ Manager (OSM)The OfficeServ Manager (OSM) is software for maintaining the OfficeServ 7400. The functionsfor controlling the system database are implemented in the form of menus in the OSM; thus, theOSM is convenient for checking and changing system data. Also, users can understand and usethe system operational commands easily because the commands for maintenance are uni-fied.