10 EXPLANATION OF BLOCK DIAGRAM
10.1. MAIN UNIT (KX-TES824LA/KX-TEM824LA)
10.1.1. Power Supply Circuit
This power supply unit is a switching power supply. Power supply unit supplies DC voltage (+27V,+15V,-15V,3.3V) to main board
and other optional cards. And this unit has an adaptor circuit to back up battery. And this unit amplified the BELL signal (20/25Hz
sign wave outputted from the ASIC) and supply bell signal to the telephone.
10.1.2. COL Interface Circuit
There are the interface circuits linking the CO line (CO1 -CO3) and the cross point circuit section.
In case of KX-TEM824, the system has 6CO line (CO1 - CO6).
10.1.3. Cross Point Circuit
This is a space division switching system for connecting the following:
The eight extension circuits with the eight CO, DTMF generator, DTMF receiver, INT-CALL ID, MODEM, OGM, VB, paging, music
on hold, tone etc.
It is composed of 3 C-MOS IC´s. (8 X 16 matrix: 2pcs and 4 X 8 matrix: 1pce).
*In case of KXTEM824, the system has 6 C-MOS IC´s (8 X 16 matrix: 3pcs and 4 X 8 matrix: 2pce, 8 X 8 matrix: 2pce).
10.1.4. Intercom Circuit
This is the interface circuit of the single line telephone, and it is composed of 8 intercom circuit (ICM1-8) In case of KX-TEM824,
the system has 16 intercom circuits(ICM1-16).
10.1.5. Power Failure Through Call Switching Circuit
KXTES824 have one power failure transfer circuit (CO1-EXT101).
In case of KXTEM824,the system has 2 power failure circuit (CO1-EXT101 CO4 -EXT109).
10.1.6. Data Communication Circuit
The APT i/f module which performs communication with a private telephone machine is built in ASIC.
8ch are controlled per block. Control of 3 blocks (24ch) is possible for ASIC at the maximum.
10.1.7. Control Circuit
A control block consists of only the [ASIC] CPU (compatibility with Intel 8086) (IC700), Flash ROM (8Mbit) (IC705), SRAM (4Mbit)
(IC704), and PIO ASIC (IC6). PIO ASIC mainly performs extension control and PIO built in ASIC CPU mainly performs extension
control. RTC (Real Time Clock) and SRAM inside CPU are backed up by the lithium battery in order to hold time, system data, etc.
10.1.8. Tone Generator Circuit
The rectangle wave generated by the timer of ASIC is changed into sine wave with a low path filter, and various tones are
generated.
10.1.9. DTMF Generator Circuit
A DTMF generator is used for dispatch to outside line, and communication with the voice mail connected to the extension.
10.1.10. DTMF Receiver Circuit
The circuit which receives the Dial Tone Multi Frequency by which extension dispatch is carried out with the DTMF receiver
connected to the crossing point.
10.1.11. Int Call ID Circuit
FSK/Dial Tone Multi Frequency generated by DSP in ASIC are connected even to a crossing point through AMP. The circuit which
sends out a CALLID signal to the telephone connected to an extension by connecting the line of INT-CALL-ID with arbitrary
extensions.
10.1.12. Modem Circuit
The MODEM signal generated by DSP in ASIC is connected even to a crossing point through AMP.
The circuit which connects the line of MODEM with arbitrary outside line, and enables MODEM communication with outside line.
19
KX-TES824LA / KX-TEM824LA /
Содержание KX-A227X
Страница 6: ...1 2 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 6 KX TES824LA KX TEM824LA ...
Страница 12: ...6 NAMES AND LOCATIONS 7 CONNECTION 7 1 SERIAL INTERFACE CONNECTION 12 KX TES824LA KX TEM824LA ...
Страница 28: ...28 KX TES824LA KX TEM824LA ...
Страница 42: ...12 TROUBLESHOOTING GUIDE 12 1 NO OPERATION Check POWER SUPPLY BOARD MAIN BOARD 42 KX TES824LA KX TEM824LA ...
Страница 43: ...12 2 NO DIAL TONE KX TES824LA MAIN BOARD OF KX TEM824LA 43 KX TES824LA KX TEM824LA ...
Страница 44: ...12 3 CANNOT DIAL KX TES824LA MAIN BOARD OF KX TEM824LA 44 KX TES824LA KX TEM824LA ...
Страница 55: ...14 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 55 KX TES824LA KX TEM824LA ...
Страница 57: ...16 FIXTURES AND TOOLS 57 KX TES824LA KX TEM824LA ...
Страница 58: ...17 CABINET AND ELECTRICAL PARTS LOCATION 58 KX TES824LA KX TEM824LA ...
Страница 59: ...18 ACCESSORIES AND PACKING MATERIALS 59 KX TES824LA KX TEM824LA ...
Страница 79: ...79 KX TES824LA KX TEM824LA ...
Страница 111: ...21 7 1 WAVEFORM 111 KX TES824LA KX TEM824LA ...
Страница 112: ...112 KX TES824LA KX TEM824LA ...
Страница 113: ...21 7 2 Memo 113 KX TES824LA KX TEM824LA ...
Страница 119: ...23 KX TE82461X 4 PORT DOORPHONE CARD 119 KX TES824LA KX TEM824LA ...
Страница 120: ...23 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 120 KX TES824LA KX TEM824LA ...
Страница 123: ...123 KX TES824LA KX TEM824LA ...
Страница 127: ...23 7 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 127 KX TES824LA KX TEM824LA ...
Страница 128: ...23 8 ACCESSORIES AND PACKING MATERIALS 128 KX TES824LA KX TEM824LA ...
Страница 135: ...24 KX TE82474X 8 PORT SLT EXTENSION CARD 135 KX TES824LA KX TEM824LA ...
Страница 136: ...24 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 136 KX TES824LA KX TEM824LA ...
Страница 142: ...142 KX TES824LA KX TEM824LA ...
Страница 143: ...143 KX TES824LA KX TEM824LA ...
Страница 147: ...24 5 TROUBLESHOOTING GUIDE 24 5 1 No Dial Tone 24 5 2 Cannot Dial 147 KX TES824LA KX TEM824LA ...
Страница 148: ...24 5 3 Cannot Call Extension 148 KX TES824LA KX TEM824LA ...
Страница 151: ...24 8 CABINET AND ELECTRICAL PARTS 24 9 ACCESSORIES AND PACKING MATERIALS 151 KX TES824LA KX TEM824LA ...
Страница 157: ...24 12 MEMO 157 KX TES824LA KX TEM824LA ...
Страница 166: ...25 KX TE82480X 2 PORT ANALOGUE CO LINE AND 8 PORT SLT EXTENSION CARD 166 KX TES824LA KX TEM824LA ...
Страница 167: ...25 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 167 KX TES824LA KX TEM824LA ...
Страница 178: ...178 KX TES824LA KX TEM824LA ...
Страница 179: ...179 KX TES824LA KX TEM824LA ...
Страница 183: ...25 6 TROUBLESHOOTING GUIDE 25 6 1 No Dial Tone 25 6 2 Cannot Dial 183 KX TES824LA KX TEM824LA ...
Страница 185: ...25 6 6 Cannot Receive Call Dial Tone 25 6 7 Cannot Send A Hold On Music 185 KX TES824LA KX TEM824LA ...
Страница 188: ...25 9 CABINET AND ELECTRICAL PARTS 25 10 ACCESSORIES AND PACKING MATERIALS 188 KX TES824LA KX TEM824LA ...
Страница 206: ...26 KX TE82483X 3 PORT ANALOGUE CO LINE AND 8 PORT HYBRID EXTENSION 206 KX TES824LA KX TEM824LA ...
Страница 207: ...26 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 207 KX TES824LA KX TEM824LA ...
Страница 216: ...216 KX TES824LA KX TEM824LA ...
Страница 217: ...217 KX TES824LA KX TEM824LA ...
Страница 222: ...26 6 TROUBLESHOOTING GUIDE 26 6 1 No Dial Tone 26 6 2 Cannot Dial 222 KX TES824LA KX TEM824LA ...
Страница 224: ...26 6 7 Cannot Receive Call Dial Tone 26 6 8 Cannot Send a Hold On Music 224 KX TES824LA KX TEM824LA ...
Страница 227: ...26 8 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 227 KX TES824LA KX TEM824LA ...
Страница 228: ...26 9 CABINET AND ELECTRICAL PATRS 26 10 ACCESSORIES AND PACKING MATERIALS 228 KX TES824LA KX TEM824LA ...
Страница 248: ...27 KX TE82491X MESSAGE EXTENSION CARD FOR DISA UCD OGMs 248 KX TES824LA KX TEM824LA ...
Страница 249: ...27 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 249 KX TES824LA KX TEM824LA ...
Страница 253: ...27 5 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 27 6 ACCESSORIES AND PACKING MATERIALS 253 KX TES824LA KX TEM824LA ...
Страница 259: ...28 KX TE82492X 2 CHANNEL VOICE MESSAGE CARD 259 KX TES824LA KX TEM824LA ...
Страница 260: ...28 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 260 KX TES824LA KX TEM824LA ...
Страница 264: ...28 5 TROUBLESHOOTING GUIDE 28 5 1 PBX cannot work 264 KX TES824LA KX TEM824LA ...
Страница 265: ...28 5 2 Cannot Erase 28 5 3 Cannot Record Playback 265 KX TES824LA KX TEM824LA ...
Страница 267: ...28 7 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 28 8 ACCESSORIES AND PACKING MATERIALS 267 KX TES824LA KX TEM824LA ...
Страница 273: ...29 KX TE82493X 3 PORT CALLER ID CARD 273 KX TES824LA KX TEM824LA ...
Страница 274: ...29 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 274 KX TES824LA KX TEM824LA ...
Страница 280: ...29 7 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 29 8 ACCESSORIES AND PACKING MATERIALS 280 KX TES824LA KX TEM824LA ...
Страница 287: ...30 KX A227X BACK UP BATTERY CABLE 287 KX TES824LA KX TEM824LA ...
Страница 288: ...30 1 ACCESSORIES AND PACKING MATERIALS 288 KX TES824LA KX TEM824LA ...