Nortel Networks NN43001-301 Manual de usuario Pagina 162
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162 Clock Controller description and installation
While it is beyond the scope of this discussion to provide detailed Network
Synchronization, the following examples illustrate some of the basic
concepts to achieve stable clocking.
Figure 60
Example 1, Isolated Private Network
In this example, there is no digital connection to the Central Office.
Figure 61
Example 2, Isolated Private Network with Secondary Reference Clock
In this example, there is no digital connection to the Central Office. For tie
lines between PBXs facilitated by a central office, clocking is derived from
the PBX, not the CO. When a second Digital loop is available, it can be used
as a Secondary Clock source in case the Primary Source fails.
Nortel Communication Server 1000
ISDN Primary Rate Interface Installation and Commissioning
NN43001-301 02.03 Standard
Release 5.5 7 December 2007
Copyright © 2003-2007, Nortel Networks
.
- ISDN Primary Rate Interface 1
- 2.0 Mb DTI implementation 237 6
- 2.0 Mb PRI implementation 257 6
- 2.0 Mb ISL implementation 283 6
- Nonstandard cables 295 6
- Procedures 7
- New in this release 9
- NN43001-301 02.03 Standard 10
- Release 5.5 7 December 2007 10
- How to get help 11
- 12 How to get help 12
- Intended audience 14
- Related information 14
- Figure 1 18
- D-Channel Handler description 20
- NT6D11 DCH 20
- QPC757 DCH 21
- QPC757 faceplate 22
- NT6D80 MSDL 23
- MSDL/PRI interface 24
- MSDL faceplate 24
- Standard PRI cards 25
- NT8D72 PRI2 25
- Carrier interface 27
- Echo canceller interface 28
- QMT21 High Speed Data Module 28
- Free run (non-tracking) mode 29
- Reference clock errors 29
- QPC720 PRI 30
- QPC720 faceplate 31
- QPC720 Cable requirements 32
- Echo Canceller interface 32
- 64 T-link version 2 protocol 33
- Disk drive hardware 34
- NT5D97 faceplate 35
- Enable/Disable Switch 37
- ENET LEDs 37
- CPU capacity 40
- Power requirements 40
- Testability and diagnostics 40
- E1 carrier cables 41
- NTCK45AA cable 42
- NTCK78AA cable 44
- Reference clock cables 45
- MSDL/DCH cables 46
- Cable diagrams 47
- Figure 16 48
- Clock for the NT5D97 49
- Clock operation 49
- Figure 18 50
- Automatic clock recovery 51
- Automatic clock switching 51
- Clock configurations 52
- Figure 20 55
- Clock Controller - Option 2 55
- Figure 21 56
- Clock Controller - Option 3 56
- NT5D12 Dual-port DTI/PRI 57
- D-Channel and MSDL interface 58
- NT5D12 faceplate 59
- Figure 23 60
- Port Out of Service LEDs 62
- NT5D12 Dual-port DTI/PRI 63 63
- NT5D12 Cable requirements 65
- Trunk Tip/Ring cables 66
- NT5D16AA 66
- NT5D16AA cable 67
- MSDL/DCHI cables 68
- External DCHI cable 68
- External MSDL cable 69
- NT5D12 Dual-port DTI/PRI 75 75
- Figure 31 75
- Clock Controller - Option 1 75
- Figure 32 76
- NT5D12 Dual-port DTI/PRI 77 77
- Figure 33 77
- Figure 34 78
- Clock Controller - Option 4 78
- DCH installation 79
- DIP switch settings 80
- Protocol selection 80
- Valid switch combinations 81
- Jumper settings 82
- Port addressing modes 83
- Port 0 Mode selection 83
- Port 1 mode selection 83
- Port address switch settings 84
- 86 DCH installation 86
- Procedure 2 86
- Install the QPC757 DCH 87
- 88 DCH installation 88
- Figure 38 88
- Remove the QPC757 DCHI 90
- Install the MSDL 95
- Replace the MSDL 98
- Replace the MSDL 99 99
- NT8D72 and QPC720 PRI card 101
- Cable requirements 102
- Cable requirements 103 103
- Figure 41 103
- Figure 42 104
- Figure 43 105
- Cable requirements 105 105
- Figure 44 106
- Cable requirements 107 107
- Figure 45 107
- Figure 46 108
- Cable requirements 109 109
- Figure 47 109
- Figure 48 110
- Cable requirements 111 111
- Figure 49 111
- Figure 50 112
- Cable requirements 113 113
- Figure 51 113
- Switch settings 120
- Switch settings 121 121
- Figure 53 121
- Procedure 12 124
- Procedure 13 125
- Contents 127
- Introduction 127
- NT5D97 circuit card locations 127
- Port definitions 128
- Figure 55 130
- DIP switches for NT5D97AA/AB 130
- Impedance level and unit mode 131
- Transmission mode 131
- Line build out 131
- Receiver impedance 132
- NT5D97AA/AB 132
- NT5D97AD DIP switch settings 134
- Figure 56 135
- Trunk 0 switches 136
- Trunk 1 switches for NT5D97AD 137
- NT5D97AD 137
- MSDL external card 138
- Install the NT5D97 DDP2 139
- Remove the NT5D97 DDP2 140
- Configure the NT5D97 DDP2 141
- NT5D12 Dual-port DTI/PRI card 143
- NT5D12 switch settings 145
- Line Build Out 146
- Receiver Impedance 146
- Ring ground switches 146
- NT5D12 switch settings 149 149
- Figure 57 149
- Install the NT5D12 DDP 150
- Remove the NT5D12 DDP 152
- Configure the NT5D12 DDP 153
- Description 156
- Supported Clock Controllers 157
- NTRB53 Clock Controller 157
- Synchronization methods 158
- Plesiosynchronous operation 158
- Mesosynchronous operation 158
- Hierarchical synchronization 159
- Stratum levels 160
- Frame slip 160
- Guidelines 161
- Figure 60 162
- Figure 61 162
- Primary Source fails 163
- Figure 63 164
- Description 165 165
- Figure 64 165
- Figure 65 166
- Modes of operation 167
- Tracking mode 167
- Installation procedures 168
- Set switches 169
- Start the Clock Controller 171
- Clock Controller commands 171
- TRCK PCK (for primary) 174
- SCLK (for secondary) 174
- FRUN (for free-run) 174
- Group System 175
- ISL installation 179
- DCHI switch settings 180
- MSDL switch settings 181
- Shared mode 182
- Figure 70 183
- ISL in shared mode 183
- Figure 71 183
- 184 ISL installation 184
- Figure 72 184
- QMT11 switch settings 187
- QMT8 switch settings 188
- QMT21C switch settings 188
- 190 ISL installation 190
- Echo canceller installation 191
- Electromagnetic Interference 192
- Figure 75 193
- PRI to echo canceller cabling 193
- 1.5 Mb PRI implementation 195
- Hardware description 196
- NTRB21 TMDI card 197
- Shelf slot assignments 197
- NTAK09 DTI/PRI circuit card 198
- ATTENTION 199
- Clocking modes 200
- Shelf slot assignment 201
- Clock controller LED states 201
- Install PRI hardware 203
- 204 1.5 Mb PRI implementation 204
- Figure 78 204
- Install PRI hardware 207 207
- Procedure 28 207
- Installing the NTAK09 209
- 218 1.5 Mb PRI implementation 218
- 1.5 Mb DTI implementation 219
- Install DTI hardware 220
- Connect the cables 221
- 1.5 Mb ISL implementation 227
- Dedicated mode 228
- Using dialup modems 228
- Basic ISL implementation 232
- Implement shared mode 236
- 2.0 Mb DTI implementation 237
- NTAK10 2.0 Mb DTI card 238
- Set the switches 239
- Switch S3 - Mode of operation 240
- Insert the NTAK10 240
- DTI software implementation 241
- Task summary list 242
- 2.0 Mb PRI implementation 257
- Install the NTAK79 PRI card 261
- 262 2.0 Mb PRI implementation 262
- Figure 83 262
- NTAK79 with switch locations 262
- Insert the NTAK79 264
- NTBK05DA pinouts 265
- NTBK05CA pinouts 265
- Install the NTBK50 PRI card 266
- Figure 85 267
- NTBK50 with switch locations 267
- 270 2.0 Mb PRI implementation 270
- Figure 86 270
- Daughterboard installation 270
- Insert the NTBK50 271
- PRI software implementation 272
- 282 2.0 Mb PRI implementation 282
- 2.0 Mb ISL implementation 283
- ISL hardware requirements 285 285
- Figure 89 285
- ISL hardware installation 286
- ISL software implementation 288
- 294 2.0 Mb ISL implementation 294
- Nonstandard cables 295
- NT5K40AA, NT5K41AA, NT5K86AA 296
- NT8D7206, NT8D7207 296
- NT8D7205 299
- NT8D83 PRI/DTI to I/O cable 301
- NT8D85 Network to IPE cable 302
- NT8D86 Network to I/O cable 302
- NTND26 PRI to MSDL cables 303
- 304 Nonstandard cables 304
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