Introduction
II
CONTENTS
INTRODUCTION .............................................................................................................. I
OUTLINE OF ERROR CODES ...................................................................................... III
HOW TO USE THIS MANUAL ........................................................................................ IV
DEFINITIONS OF THE TERMS AND EXPRESSIONS .................................................. V
Chapter 1 User Error Codes ........................................................................................ 1-1
Chapter 2 Service Error Codes .................................................................................... 2-1
Appendix
1. ISOLATING A TROUBLE.......................................................................................... A-1
1.1 3-Point Communication ...................................................................................... A-1
2. CONTROL PROCEDURE AND SIGNALS USED FOR G3 ..................................... A-2
2.1 G3 Control Procedure ........................................................................................ A-2
2.2 ECM Control Procedure..................................................................................... A-3
2.3 V.8/V.34 Control Procedure ................................................................................ A-4
2.4 Signals Transmitted by the Transmitter .............................................................. A-5
2.5 Signals Transmitted by the Receiver .................................................................. A-6
2.6 Common Signals Transmitted by Transmitter/Receiver...................................... A-8
2.7 Signals Transmitted by the Transmitter (unique to ECM communication) .......... A-8
2.8 Signals Transmitted by the Receiver (unique to ECM communication) ............. A-9
2.9 Signals Transmitted by the Transmitter (unique to the V.8 procedure) ............. A-10
2.10 Signals Transmitted by the Receiver (unique to the V.8 procedure) .............. A-10
2.11 Signals Transmitted by the Transmitter (unique to the V.34 procedure) ......... A-10
2.12 Signals Transmitted by the Receiver (unique to the V.34 procedure) ............ A-11
2.13 Signals Transmitted by the Transmitter/Receiver
(unique to the V.34 procedure) ..................................................................... A-11
2.14 Expected Signals ........................................................................................... A-12
2.15 FIF .................................................................................................................. A-14
2.16 List of Maker Codes ....................................................................................... A-23
3. HOW TO RECORD THE PROTOCOL .................................................................... A-25
4. CONTROL PROCEDURE AND SIGNALS USED FOR G4 ................................... A-26
4.1 Channel D Control Procedure.......................................................................... A-26
4.2 Channel B Control Procedure .......................................................................... A-27
4.3 Major Signals Used for Channel D Layer 2...................................................... A-28
4.4 Major Signals Used for Channel D Layer 3...................................................... A-28
4.5 Major Signals Used for Channel B Layer 2 ...................................................... A-29
4.6 Major Signals Used for Channel B Layer 3 ...................................................... A-29
4.7 Major Signals Used for Channel B Layer 4 ...................................................... A-29
4.8 Major Signals Used for Channel B Layer 5 ...................................................... A-30
4.9 Major Signals Used for Channel B Layer 6 ...................................................... A-31
5. COMPARISON OF ERROR CODES...................................................................... A-32
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