UNC/WN5/FN5/DN5
40838301TH Rev.1
A3 - 33
A3.4
UNC, WN5, FN5 and DN5 Circuit Diagram
The NCU board is selected from UNC, WN5, FN5 and DN5 because it differs depending on country’s
specifications. Therefore, the NCU circuit diagram is destined for the following countries.
Note: The relationship between NCU and optional boards (NTIF, TEL, HOOK, etc.) are shown in
A3.10 OKIFAX 5400 facsimile transceiver.
•
UNC circuit diagram
US and Canada.
•
WN5 circuit diagram
Sweden, Finland, The Netherlands, Ireland, Portugal, New Zealand, Australia, Belgium, Spain,
Greece, Norway, Denmark, Italy, and other countries.
•
FN5 circuit diagram
France and UK
•
DN5 circuit diagram
Germany, Switzerland and Austria.
1.
Block diagram
•
Figure A3.4.1 shows a block diagram of UNC circuit.
•
Figure A3.4.2 shows a block diagram of WN5 circuit.
•
Figure A3.4.3 shows a block diagram of FN5 circuit
•
Figure A3.4.4 shows a block diagram of DN5 circuit.
2.
General functions of this circuit are as follows:
1)
Generates and detects signals to be exchanged with a telephone exchange or network
in Phases A and E defined by ITU T.30.
•
Loop formation for call origination
•
Line current detection (see note 1) before call origination
•
Dial tone detection (see note 1)
•
Generation of dial pulses (see note 2)
•
Busy tone detection (see note 1)
•
Ringing signal detection
2)
Sends various data and signals from the E17 board to the telephone line after
amplification.
•
Picture data/Protocol/Tonal signals/PB tone, etc.
3)
Sends the following signals received from the line to the E17 board as data after
amplification.
•
Picture data/Protocol/Tonal signals, etc.
Note 1: This procedure may be omitted depending on the dial parameters.
Note 2: MF (Multi-frequency) tone is generated by the modem and transferred to the
telephone line via the NCU board.
Содержание OKIFAX 5400
Страница 7: ...40838301TH Rev 1 CHAPTER 1 GENERAL INFORMATION...
Страница 46: ...40838301TH Rev 1 CHAPTER 2 INSTALLATION PROCEDURE...
Страница 130: ...40838301TH Rev 1 CHAPTER 3 BRIEF TECHNICAL DESCRIPTION...
Страница 138: ...40838301TH Rev 1 CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY...
Страница 157: ...40838301TH Rev 1 CHAPTER 5 ADJUSTMENTS...
Страница 162: ...40838301TH Rev 1 CHAPTER 6 CLEANING AND MAINTENANCE...
Страница 189: ...40838301TH Rev 1 CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5400...
Страница 240: ...40838301TH Rev 1 CHAPTER 8 DIPSWITCHS SETTING TABLES...
Страница 353: ...40838301TH Rev 1 Appendix B Descriptions of Print Operation First Edition August 1999 Oki Data Corporation...
Страница 375: ...40838301TH Rev 1 Appendix C Circuit Diagram and Parts List OK IFAX 5400 First Edition August 1999 Oki Data Corporation...
Страница 380: ...40838301TH Rev 1 D 2 SECTION 1 CABINET ASSEMBLY 5...
Страница 382: ...40838301TH Rev 1 D 4 SECTION 2 CONTROL PANEL ASSEMBLY...
Страница 384: ...40838301TH Rev 1 D 6 SECTION 3 PRINTER ASSEMBLY 51...
Страница 387: ...40838301TH Rev 1 D 9 SECTION 4 BASE ASSEMBLY 30 37 36 39 40 5...
Страница 390: ...40838301TH Rev 1 D 12 SECTION 5 SCAN UNIT...
Страница 392: ...40838301TH Rev 1 D 14 SECTION 6 PAPER GUIDE U ASSEMBLY...
Страница 394: ...40838301TH Rev 1 D 16 SECTION 7 CABLES 10 11 19 12 20 21...
Страница 396: ...40838301TH Rev 1 D 18 SECTION 8 OPTION TELEPHONE US...
Страница 399: ...40838301TH Rev 1 D 21 SECTION 8 OPTION TELEPHONE UK ITA NOR DEN BEL...
Страница 402: ...40838301TH Rev 1 D 24 SECTION 8 OPTION TELEPHONE HOL GER FRA SWITZ AUT INT L...
Страница 405: ...40838301TH Rev 1 Appendix E Board Layout OKIFAX 5400 First Edition August 1999 Oki Data Corporation...
Страница 424: ...40838301TH Rev 1 F 15 5 2 PCB Layout TQSB 2PCB PU FG CONTROLLER MOTOR DRIVER SEN2 MOTOR OSC SEN1...
Страница 425: ...40838301TH Rev 1 F 16 Figure 6 1 6 PARTS LIST SECTION1 CABINET CASSETTE ASSEMBLY F 16 1 4 P 6 5 8 7 3 O 1 2...
Страница 426: ...40838301TH Rev 1 F 17 SECTION2 MECHANICAL ASSEMBLY Figure 6 2 F 16 2 9 A 0 C M L D N E F G H U V T S Q R J I B K A A B B...
Страница 428: ...40838301TH Rev 1 Appendix G RMCS SYSTEM MANUAL For Model 20 First Edition August 1999 Oki Data Corporation...