User ManualTable of ContentsIMPORTANT SAFETY INSTRUCTIONS1Safety requirements1PRECAUTION2THE STRUCTURE OF MANUAL3SECTION 1. INTRODUCTION41.1 The IP LDK-20 System highlights41.2 System Connection Diagram41.3 System Components51.4 Specifications61.4.1 General specifications61.4.2 System Capacity7SECTION 2. KSU INSTALLATION82.1 Pre-Installation82.1.1 Safety installation instructions82.1.2 Installation precautions82.1.3 Wiring precautions82.2 KSU Installation92.2.1 Unpacking92.2.2 KSU exterior and dimension102.2.3 KSU with expansion module exterior and dimension112.2.4 Opening and closing the front cover122.2.5 Frame ground connection142.2.6 Power Supply Unit (PSU) installation152.2.7 External backup batteries installation162.2.8 KSU mounting17SECTION 3. BOARD INSTALLATION203.1 Installation of the Boards203.2 MBUB (Main Board Unit)213.2.1 Modular Jack(MJ1~MJ3) Pin Assignment233.3 Installation of the CO Line Board293.3.1 LCOB (CID Loop Start CO line Interface Board)293.3.2 STIB (Basic Rate Interface Board: Selectable S/T interface)323.3.3 CBIB (CID Loop Start CO line + Basic Rate Interface Board)363.4 Installation of the Extension Board39DTIB4 (Digital Terminal Interface Board)39DTIB8 (Digital Terminal Interface Board)40SLIB4 (Single Line Interface Board)41SLIB8 (Single Line Interface Board)423.5 Other Board Installations43VMIBE (Voice Mail Interface Board Enhanced)43AAFBE(Auto Attendant Function Board Enhanced)44LANU (LAN interface Unit)45MODU (MODEM function Unit)46SECTION 4. EXPANSION MODULE INSTALLATION474.1 Unpacking474.2 Opening and closing the front cover484.2.1 Opening the front cover484.2.2 Closing the front cover494.3 Opening and closing the front cover504.3.1 Connecting Expansion Module to KSU504.3.2 Wall mounting514.3.3 Rack Mounting524.4 External backup batteries connection544.5 VOIM (Voice over Internet Protocol Interface Module) installation55Various switches and connectors functions564.5.1 Pin assignment574.5.2 VOIU(Voice over Internet Protocol Interface Unit)584.6 SLIM(SLT Interface Module) Installation594.6.1 Pin assignment594.7 DTIM(DKT Interface Module)604.7.1 Pin assignment60SECTION 5. TERMINAL CONNECTION615.1 Terminal Models615.2 Terminal Cabling Distance625.3 Keyset Connection635.3.1 Digital Keyset635.3.2 SLT635.4 Connecting Additional Terminals64External Music Source wiring64Relay Contacts64External Paging wiring64Alarm Detection wiring64SECTION 6. STARTING THE IPLDK-20 SYSTEM656.1 Before Starting the IP LDK-20 System656.2 Basic Preprogramming656.2.1 DKTU (Station 10) programming656.2.2 Entering programming mode676.2.3 Pre-programming68SECTION 7. TROUBLESHOOTING76Size: 4.8 MBPages: 80Language: EnglishOpen manual