Newnes Data Communications Pocket Book

Steve Winder9780750652971, 0750652977

Despite the complexity of the subject, this wealth of information is presented succinctly and in such a way, using tables, diagrams and brief explanatory text, as to allow the user to locate information quickly and easily. Thus the book should be invaluable to those involved with the installation, commissioning and maintenance of data communications equipment, as well as the end user.*A practical engineer’s reference that puts the key information at your fingertips*Covers essential data, techniques and working practice*This update covers the latest international regulations

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Table of contents :
Contents……Page 4
Preface……Page 5
Abbreviations commonly used in data communications……Page 6
Glossary of data communications terms……Page 17
Abbreviations used for advisory bodies and other organisations……Page 40
2 Terminals……Page 42
International alphabet no. 2 (IA2)……Page 43
International alphabet no. 5 (IA5)……Page 44
Extended binary coded decimal interchange code ( EBCDIC)……Page 47
Terminal control codes……Page 48
Commonly used control characters (with keyboard entry)……Page 51
Transmission element specifications……Page 53
Data cable types……Page 55
Coaxial cable data……Page 59
Screened and unscreened pair data……Page 61
CAT-3, -4, -5, -6, -7 cable……Page 62
Cable equivalents……Page 63
Optical fibre technology……Page 64
Optical fibre connectors……Page 70
Optical detectors……Page 71
Optical fibre safety……Page 72
Serial data transmission……Page 73
Serial I/O devices……Page 74
RS-232……Page 77
RS-232D signals and functions……Page 79
Subset of the most commonly used RS-232 signals……Page 80
RS-232 waveforms……Page 81
RS-232 electrical characteristics……Page 82
RS-232 logic and voltage levels……Page 83
Simplified arrangement of a microcomputer RS- 232 interface……Page 84
RS-232 data cables……Page 85
RS-232 pin connections……Page 86
V.24/RS-232 interface connections……Page 87
RS-422……Page 89
RS-423……Page 90
RS-449……Page 91
RS-449 pin connections……Page 93
V. 36/ RS- 449 interface connections……Page 94
RS-485……Page 95
RS- 530 interface connections……Page 96
X. 21 interface connections……Page 97
V. 35 interface connections……Page 98
RJ- 11 interface connections……Page 99
RJ- 12 interface connections……Page 100
RJ- 45 interface connections……Page 101
USB……Page 102
IEEE-1394 ‘Firewire’……Page 106
Typical links between computers……Page 108
Typical null-modem arrangements……Page 109
Modems……Page 110
Modem signal frequencies……Page 113
Transmitter carrier and signalling frequency specifications……Page 115
Differential four-phase encoding (V.26A and V. 26B/ Bell 201)……Page 116
Data communications test equipment……Page 117
Fault finding on RS-232 systems……Page 119
Cable modem……Page 121
Data Communications Equipment……Page 122
Parallel I/O devices……Page 135
Centronics printer interface……Page 137
IEEE-488 interface standard……Page 139
IEEE-488 devices……Page 140
IEEE-488 bus signals……Page 141
IEEE-488 commands……Page 143
Multiline commands……Page 144
IEEE-488 bus configuration……Page 145
IEEE-488 software……Page 146
IEEE-488 programming……Page 148
ISO model for open systems interconnection……Page 151
8 Local area networks……Page 154
Typical LAN selection flowchart……Page 158
Popular network standards……Page 159
Summary of popular LAN specifications……Page 162
Twisted-pair Ethernet……Page 163
Ethernet (co-axial cable)……Page 165
Wireless LANs……Page 169
Integrated services digital network……Page 180
High-speed digital subscriber line (HDSL)……Page 181
Asymmetric digital subscriber line (ADSL)……Page 182
Single-pair digital subscriber line (SDSL)……Page 183
Very-high-speed digital subscriber line (VDSL)……Page 184
Single-pair HDSL (G.shdsl– G.991.2)……Page 0
Asynchronous transfer mode……Page 185
XMODEM protocol……Page 187
XMODEM/CRC protocol……Page 190
ITU X.25……Page 191
Frame relay……Page 194
HDLC frame structure……Page 195
LAN security and management……Page 197
Network operating systems……Page 201
Internet protocol (IP)……Page 203
Transport protocols……Page 210
ITU-T recommendations……Page 217
Powers of 2……Page 228
Decimal, binary, hexadecimal and ASCII conversion table……Page 229
Decibels and ratios of power, voltage and current……Page 235
Transmission line power levels and voltages……Page 240
Addresses of advisory bodies, standards institutes, and other organisations……Page 242
Basic logic gates……Page 245
Index……Page 246