LG ipLDK-60 - Table of Contents

ipLDK-60 SERVICE MANUAL
DIGITAL KEY TELEPHONE SYSTEM
I
Table of Contents
SECTION 1. GENERAL DESCRIPTION..........................................................................................................1
1.1 SYSTEM CONNECTION DIAGRAM ............................................................................................................. 2
1.2 SPECIAL ATTENTION OF NOTICE ............................................................................................................... 3
1.3 SYSTEM FEATURES................................................................................................................................. 3
1.4 SYSTEM SPECIFICATIONS........................................................................................................................ 4
1.4.1 General specifications................................................................................................................. 4
1.4.2 Environment Specification........................................................................................................... 5
1.4.3 System Capacity ......................................................................................................................... 5
1.5 SYSTEM CONFIGURATION........................................................................................................................ 6
1.5.1 System Configuration.................................................................................................................. 6
1.5.2 System Components................................................................................................................... 7
SECTION 2. SYSTEM OPERATION THEORY................................................................................................9
2.1 SYSTEM ARCHITECTURE ......................................................................................................................... 9
2.1.1 General Description .................................................................................................................... 9
2.1.2 Instrument Types......................................................................................................................... 9
2.1.3 Capacity Limitations .................................................................................................................. 10
2.2 SWITCHING............................................................................................................................................11
2.2.1 Back plane Architecture .............................................................................................................11
2.2.2 Signaling Channels ....................................................................................................................11
2.3 ADMINISTRATION................................................................................................................................... 12
2.3.1 General Description .................................................................................................................. 12
2.3.2 System Generic Memory........................................................................................................... 12
2.3.3 Operating Memory .................................................................................................................... 12
2.3.4 Customer Database Memory .................................................................................................... 12
2.3.5 System Resources .................................................................................................................... 12
2.4 CALL PROCESSING ............................................................................................................................... 14
2.4.1 Internal Call Types..................................................................................................................... 14
2.4.2 Outside Call Types .................................................................................................................... 14
2.4.3 Conferencing............................................................................................................................. 15
SECTION 3. CIRCUIT DESCRIPTION...........................................................................................................16
3.1 MAIN BOARD UNIT WITH CO.................................................................................................................. 16
3.1.1 General ..................................................................................................................................... 16
3.1.2 Block Diagram & Circuit Description ......................................................................................... 17
3.1.3 Meaning of Connectors, Switches and LEDs............................................................................ 33
3.2 EMBU (EXPANSION MAIN BOARD UNIT) ................................................................................................ 39
3.2.1 General ..................................................................................................................................... 39
3.2.2 Block Diagram........................................................................................................................... 39
3.2.3 Circuit description...................................................................................................................... 40
3.2.4 Meaning of Connectors and LEDs ............................................................................................40
3.3 CHB308 AND CSB316 ......................................................................................................................... 43
3.3.1 General ..................................................................................................................................... 43