Related Manuals for LG ipLDK-60
Summary of Contents for LG ipLDK-60
- Page 1 SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM DIGITAL KEY TELEPHONE SYSTEM SERVICE MANUAL MODEL : ipLDK-60...
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Page 2: Table Of Contents
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM Table of Contents SECTION 1. GENERAL DESCRIPTION......................1 1.1 S ......................2 YSTEM ONNECTION IAGRAM 1.2 S ....................... 3 PECIAL ATTENTION OF NOTICE 1.3 S ..........................3 YSTEM EATURES 1.4 S ........................4 YSTEM PECIFICATIONS 1.4.1 General specifications......................... - Page 3 SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 3.3.2 Block Diagram........................... 43 3.3.3 Circuit description........................44 3.3.4 Meaning of Connectors ......................49 3.4 SLIB8 (S ) ................... 53 INGLE NTERFACE OARD 3.4.1 General ............................. 53 3.4.2 Block Diagram........................... 53 3.4.3 Circuit description........................53 3.4.4 Meaning of Connectors ......................
- Page 4 SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 4.10 CMU12/50PR..........................199 4.11 PSU..............................200 SECTION 5. PART LIST ..........................202 5.1 BKSU ..............................202 5.2 EKSU ..............................211 5.3 CHB308 ............................218 5.4 CSB316............................. 221 5.5 SLIB8 ..............................227 5.6 E1HB..............................231 5.7 RPHB8 .............................. 238 5.8 VOIB ..............................
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Page 5: Section 1. General Description
The ipLDK-60 system achieves a high level flexibility by 1) employing three kinds of option boards, and 2) providing expansion system. The KSU of ipLDK-60 is a wall-mounted cabinet that houses the MBU (Main Board Unit) and several connectors for the CO line/Digital KTU/SLT/Voice mail/LAN interface boards, and other useful boards. -
Page 6: System Connection Diagram
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 1.1 System Connection Diagram ipLDK-60 system can be connected to several externals and internal line for call processing as following Figure1.1.1 System connection diagram. ipLDK-60 Figure 1.1.1 System Connection (... -
Page 7: Special Attention Of Notice
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 1.2 Special attention of notice Make sure that the power is off and start disassembling the system and board. When dealing with PCB, check the discharge of human body and deal it with the edge of PCB. -
Page 8: System Specifications
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 1.4 System Specifications 1.4.1 General specifications ITEM DESCRIPTION SPECIFICATION ARM9 TDMI core(32bit, 50MHz) Switching Device Custom Mixed-Signal ASIC Device Memory Back-up Duration 10years AC Voltage Input 100~230 +/- 10% Volt AC @47-63Hz AC Power consumption... -
Page 9: Environment Specification
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 1.4.2 Environment Specification ITEM DEGREES (℃) DEGREES (℉) Operation Temperature 0~40 32~104 Optimum Operation Temperature 20~26 68~78 Storage Temperature 10~70 32~158 Relative Humidity 0~80% non-condensed 1.4.3 System Capacity DESCRIPTION CAPACITY/BOARD TOTAL Time Slots... -
Page 10: System Configuration
1.5 System Configuration 1.5.1 System Configuration The following Figure 1.2.1 System connection diagram shows the ipLDK-60 system configuration for all kinds of board in this system that includes the existing boards for the ipLDK-60 system and the developed new boards. -
Page 11: System Components
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM 1.5.2 System Components BASIC KSU ITEM OPTION BOARD DESCRIPTION Key Service Unit Power Supply Unit Main Board Main Board Unit (3CO, 1DKT and 7 Hybrid) CO and CO Line and DKT/SLT interface boards (CHB308, CSB316,... - Page 12 SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM EXPANSION KSU ITEM OPTION BOARD DESCRIPTION Key Service Unit Power Supply Unit Main Board EMBU Expansion Main Board Unit (3 CO and 8 Hybrid) CO and Extension CO Line and DKT/SLT interface Boards...
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Page 13: Section 2. System Operation Theory
KSU and expansion KSU supports wall mounting and rack mounting. It allows any mix of station boards with CO ports. The system back plane communications channel is distributed to the expansion KSU as a logical extension of the basic KSU using a 50-pin connector with flat cable. -
Page 14: Capacity Limitations
B. Analog Instruments Analog instruments can be used in ipLDK-60 system. Analog voice communication is sent over the single pair of wires from the single line interface boards to the station. CODEC on the SLT interface circuits is used to convert digital voice signals to analog voice signals before being sent to the analog instrument and to converts analog voice from the phone to digital PCM signals before routing them through the system. -
Page 15: Switching
2.2 Switching 2.2.1 Back plane Architecture ipLDK-60 system has PCM highway called MPX bus to interface voice CODECs on the MBU and Option boards to main switching device ACT2. For extension boards and expansion KSU on which additional PCM highway is needed, system back plane architecture called ISC highway provides interfacing custom blocks such as DBID and GSL12 in ACT2 on the MBU. -
Page 16: Administration
2.3 Administration 2.3.1 General Description ipLDK-60 Hybrid Key Telephone System utilizes stored program control technology. It means that system time slot switching, hardware control, and all feature implementations are controlled by software code residing on memory in the system. There are 3 types of memories used by the system, System Generic memory, Scratched memory, and Customer Database memory. - Page 17 1) RS-232C Communication ipLDK-60 system provides a port of serial communication standard, RS-232C that is implemented by the first UART of CPU. It provides asynchronous serial communications up to 19200 baud rates. A log-on procedure is used to enter the system terminal programming mode and ASCII characters and control codes are used to modify the customer database.
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Page 18: Call Processing
SERVICE MANUAL DIGITAL KEY TELEPHONE SYSTEM requesting station is assigned a transmit “B” channel and the VMIU is assigned a corresponding receive “B” channel. The VMIU connects one of its 4 ports to the receive channel and starts monitoring for sound. If no sound is detected, the recording is stopped and the connection is broken down. -
Page 19: Conferencing
DIGITAL KEY TELEPHONE SYSTEM 2.4.3 Conferencing Conferencing is accomplished on the ipLDK-60 system by using switching block of a special custom integrated circuit called the ACT2. This device uses a technique that involves the real time digital summation of two ports (conferee’s) PCM data. -
Page 20: Section 3. Circuit Description
1 DKT port and 7 Hybrid ports. The capacity of IPLDK-60 system can be extended to maximum 12/48 that means the twelve CO interface ports and the forty-eight extension ports by adding EKSU, CHB308 and CSB316 board.