Comtech-ef-data CDM-625A Bedienungsanleitung Seite 663
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CDM-625A Advanced Satellite Modem MN-CDM625A
Appendix K Revision 3
K–15
K.7 Advanced Network Timing
K.7.1 Overview
The Advanced Network Timing (ANT) feature provides IP-based protocols to synchronize the
modem's internal time-of-day clock to an external device such as a time server, Base Station
Controller (BSC), or Radio Network Controller (RNC).
K.7.2 SNTP (Simple Network Time Protocol)
The Simple Network Time Protocol (SNTP), defined in RFC-1361, provides millisecond-
resolution time synchronization with a time server. When the modem synchronizes its time, it also
synchronizes the time of all connected EDMAC devices, such as slave LPODs or CSATs. When all
devices are synchronized, administrators can better correlate logged events between devices.
SNTP is a UDP protocol that works on port 123. If the modem is not updating its time, verify that
there are no network devices between the modem and time server that might block UDP packets
on that port.
K.7.3 PTP (Precision Time Protocol)
1) At present, PTP is not supported in modems in which the optional IP Packet
Processor is installed and enabled
.
2) For better PTP clock accuracy, ingress and egress port sync interval should be
at least 2 seconds.
Figure K-13. Configuration Example – Point-to-Point Network with PTP
- CDM-625 1
- Revision 3 3
- VersaFEC-2 LONG BLOCK: 6
- TABLE OF CONTENTS 11
- xviii 26
- xxiii 31
- FIGURES 32
- xxvii 35
- BLANK PAGE 36
- PREFACE 37
- Safety and Compliance 38
- Grounding 38
- Electrical Installation 39
- Battery 39
- Operating Environment 40
- (2004/108/EC) 40
- (91/263/EEC) 41
- CE Mark 42
- Product Support 42
- Comtech EF Data Headquarters 42
- Warranty Policy 42
- Limitations of Warranty 43
- Exclusive Remedies 43
- Preface Revision 3 44
- Chapter 1. INTRODUCTION 45
- Introduction Revision 3 46
- 1.2 Functional Description 47
- 1.3 Features 48
- 1.3.1 Physical Description 48
- 1.3.2 Modem Compatibility 48
- 1.3.3 Verification 48
- 1.3.9 Physical Features 54
- 1.3.9.3 Rear Panel Features 56
- 1.4.1 Modulator 57
- 1.4.2 Demodulator 60
- 65
- 1.4.3 Data Interfaces 66
- 1.4.5 DoubleTalk 67
- Carrier- in-Carrier 67
- 1.4.6 Framing Summary 68
- 1.4.7 Data Rate Ranges 69
- 1.4.8.1 VersaFEC ACM 74
- 1.4.8.2 VersaFEC-2 ACM 75
- 1.4.9 Miscellaneous 78
- 1.4.10 Approvals 78
- Chapter 2. INSTALLATION 79
- Installation Revision 3 80
- 2.3 Configure the Modem 83
- 2.4 Verify Modem Operation 83
- Chapter 3. REAR PANEL 85
- CONNECTORS 85
- PINOUTS 85
- 3.1.1.1 Type ‘BNC’ 86
- 3.1.1.2 Type ‘TNC’ 86
- 3.1.1.3 Type ‘N’ 86
- 3.1.1.4 Type ‘F’ 86
- 3.2.1 IF Connection Group 89
- 3.2.1.1 Rx IF Connectors 89
- 3.2.1.2 Tx IF Connectors 89
- 3.2.2.2 G.703 Connectors 93
- 3.2.2.2.2 Aux G.703 (DB-9F) 93
- Connectors 94
- Cable Kits 96
- 3.2.2.5 ESC (DB-9F) 98
- 3.2.3.2 Alarms (DB-15M) 99
- 3.2.3.4 1:1 Control (DB-9F) 100
- 3.2.3.5 Ext Ref In/Out 100
- Chapter 4. UPDATING FIRMWARE 107
- Ethernet IP Address/Range: 110
- 192.168.001.002/24 () 110
- 200 Port command okay 116
- 150 Opening data connection 116
- Chapter 5. FAST ACTIVATION 121
- PROCEDURE 121
- Chapter 6. FRONT PANEL 127
- OPERATION 127
- 6.1.1 LED Indicators 128
- 6.1.2 Keypad 129
- 6.1.3.1 Screen Saver 130
- 6.1.3.2 Opening Screen 130
- 6.2 SELECT: (Main) Menu 132
- 6.2.1.1 CONFIG: All 135
- 6.2.1.2 CONFIG: Mode 136
- 6.2.1.3 CONFIG: Tx 138
- () 139
- V2-ACM Mode) 142
- 6.2.1.3.4 CONFIG: Tx FEC 143
- 6.2.1.3.6 CONFIG: Tx Data 146
- 6.2.1.4 CONFIG: Rx 149
- 6.2.1.4.3 CONFIG: Rx FEC 151
- 6.2.1.4.5 CONFIG: Rx Data 153
- Rx Sub-Mux = Off (Off, On) 154
- 6.2.1.4.9 CONFIG: Rx EbNo 156
- 6.2.1.5 CONFIG: Clocks 157
- Drp-Ch: 1 162
- TS: 01 162
- Ins-Ch: 1 162
- E1 Clock Sync/Asynch Mode: 164
- V2-ACM Modes Only) 165
- 6.2.1.8 CONFIG: CnC 167
- CnC PMSI Mode: Idle 169
- 6.2.1.9 CONFIG: EDMAC 170
- 6.2.1.10 CONFIG: Misc 171
- 6.2.1.11 CONFIG: Mask 176
- Remote Control=Local 180
- ◄ ► arrow keys to select 180
- 6.2.1.13 CONFIG: IP 181
- CONFIG: IP Addresses MAC 181
- CONFIG: IP SNMP Traps 183
- Per-Port-Config: 185
- MAC learning: 188
- User Service) 189
- ◄ ►arrow keys to select the 191
- ◄ ►arrow keys 191
- OF SERVICE (QoS) 194
- L3 QoS=Off 195
- PTP Feature = Enabled 198
- Figure 6-3. Loopback Modes 201
- 6.2.3.3 Monitor: ACM 206
- 6.2.3.4 Monitor: Statistics 207
- SNR = Eb/No + 10 209
- (spectral efficiency) 209
- 6.2.3.6 Monitor: RemoteEbNo 210
- 6.2.4.1 Info: All 212
- 6.2.4.2 Info: ID 212
- 6.2.4.3 Info: Mode 212
- 6.2.4.4 Info: Tx 213
- 6.2.4.5 Info: Rx 213
- 6.2.4.6 Info: Clocks 214
- 6.2.4.7 Info: EDMAC 214
- 6.2.4.8 Info: Drop 214
- 6.2.4.9 Info: Insert 214
- 6.2.4.10 Info: Remote 215
- 6.2.4.11 Info: Alarm-Mask 215
- 6.2.4.12 Info: Misc 215
- AVAILABLE 216
- 14:06:37 26/10/14 216
- 6.2.6.1 Utilities: Set-RTC 217
- 6.2.6.3 Utilities: CarrID 218
- 6.2.6.4 Utilities: LED 219
- 6.2.6.7 Utilities: Firmware 222
- Image#X 223
- 6.2.8.1 FAST: Options 225
- 6.2.8.2 FAST: Demo-Mode 228
- 6.2.8.3 FAST: CnC 229
- Chapter 7. ETHERNET-BASED 231
- REMOTE PRODUCT 231
- MANAGEMENT 231
- 7.3 SNMP Interface 232
- 7.3.3 SNMP Traps 233
- 7.4 Telnet Interface 235
- Operation 237
- 7.5.1 User Login 238
- 7.5.2.1 Navigation 239
- 7.5.2.2 Page Sections 239
- 7.5.2.3 Action Buttons 239
- 7.5.2.4 Drop-down Lists 240
- 7.5.2.5 Text or Data Entry 240
- 7.5.4.1 Home Page 243
- 7.5.4.2 Admin Pages 244
- 7.5.4.2.1 Admin 244
- Host Access List 245
- RADIUS Log 246
- 7.5.4.2.2 Admin 247
- Image 1 / Image 2 248
- Next Reboot, will use 249
- Firmware 249
- 7.5.4.2.4 Admin 250
- 7.5.4.2.5 Admin 251
- 7.5.4.2.6 Admin 252
- 7.5.4.3 Configuration Pages 253
- Network Configuration 255
- Per Port Configuration 257
- VLAN Mode 258
- VLAN Table 258
- ARP Table (Edit) 259
- Add Static ARP 260
- Delete Static ARP 260
- Flush Dynamic ARPs 260
- Route Table (Edit) 261
- Add New Route 262
- Delete Route 262
- IGMP Multicast Router 263
- IGMP Joined Groups 264
- Multicast Routes 264
- DHCP Relay 265
- DNS Caching 266
- DNS Cache Flush 266
- Managed Switch Configuration 267
- QoS Rules Table 271
- Add New QoS Rule 271
- Delete Rule 273
- Differentiated Services 274
- Click [Submit] to save 275
- Compression Availability 276
- Header Compression 276
- Payload Compression 276
- Encryption Status Section 277
- Encryption / Decryption Keys 278
- Redundancy 281
- Re-Center Buffer 281
- Circuit ID 282
- Date and Time 282
- BERT Config 282
- BERT Monitor 282
- MetaCarrier Info 283
- AND DROP AND 285
- Antenna Handover 291
- 7.5.4.4 Status Pages 292
- Events Log 293
- Statistics Log 294
- Alarm Mask 294
- Event Logging 295
- Clear Event Log 295
- Event Logging Table 295
- Clear Statistics 298
- Clear Compression Counters 301
- Clear QoS Counters 302
- PTP Status 303
- PTP Statistics 303
- MAC Table 305
- Clear All Counters 306
- CPU Usage 307
- 7.5.4.6 Redundancy Page 310
- Redundancy Monitor 311
- 8.3 EIA-232 314
- 8.4 Basic Protocol 314
- 8.4.1 Packet Structure 315
- 8.4.1.1 Start of Packet 316
- 8.4.1.2 Target Address 316
- 8.4.1.3 Address Delimiter 316
- 8.4.1.4 Instruction Code 316
- 8.4.1.7 End Of Packet 318
- 8.5.1 Table Indexes 319
- Sect. 8.5.4 Unit Parameters 320
- 8.5.2 Tx Parameters 322
- 8.5.3 Rx Parameters 331
- 8.5.4 Unit Parameters 339
- 8.5.6 Modem Information 360
- 8.5.10 Ethernet Parameters 373
- Chapter 9. TELNET COMMAND 379
- LINE INTERFACE (CLI) 379
- Selection Action 387
- 9.3.1 Home (Main) Menu 388
- Processor) 393
- Administration submenu 396
- Modem Configuration 397
- Enter a value from 406
- Positive2 416
- Positive4 416
- Positive6 416
- Positive8 416
- Full 100 Mbps 420
- Half 100 Mbps 420
- Full 10 Mbps 420
- Half 10 Mbps 420
- 9.3.5 Home > WAN Submenu 434
- Chapter 10. CDM-625A ODU 469
- (TRANSCEIVER, BUC, LNB) 469
- Live BUC=None 477
- Alarms LNB=None () 477
- Frequency) 479
- 10.3.3.3.3 ODU: FSK-control 481
- Configuration 485
- Stored-Alarms 487
- Miscellaneous 491
- Use the 497
- 1:1 Monitor & Control 502
- LPOD S/N: 123456789 502
- BUC Configuration 505
- BUC Status 505
- LNB Control 506
- 10.4.2.4 ODU Pages 509
- 10.4.2.4.1 ODU 510
- ODU Comms 510
- ODU Selection 512
- Up Converter Parameters 512
- Down Converter Parameters 512
- Unit Parameters 512
- LNA Parameters 513
- ODU Circuit Identification 513
- Up Converter 514
- Down Converter 514
- 10.4.2.4.3 ODU 516
- ODU Type / HPA Type 517
- 10.4.2.4.4 ODU 518
- Force 1:1 Switch 518
- Recalibrate LNA Current 519
- Redundancy Box Mode 519
- ODU Date & Time 519
- ODU Stored Events 519
- (LEFT) Tera Term CLI Example 521
- (RIGHT) PuTTY CLI Example 521
- 10.5.1.1 Home (Main) Menu 522
- Settings 1/2, 2/2 525
- Appendix A. CABLE DRAWINGS 533
- Appendix A Revision 3 534
- Appendix B. FEC (FORWARD 537
- ERROR CORRECTION) OPTIONS 537
- B.2 Viterbi 538
- B.3 Sequential 539
- B.4.1 Closed Network Modes 540
- B.4.2 Open Network Modes 540
- Appendix B Revision 3 541
- B.7.1 Overview 544
- B.7.2 TPC vs. LDPC 545
- B.8 VersaFEC 549
- (Short-block LDPC) 549
- B.8.1 VersaFEC Extensions 551
- B.8.1.1 Extended CCM Codes 551
- B.9 VersaFEC-2 ACM and CCM 552
- B.9.1 VersaFEC-2 ACM Latency 555
- Decoding 558
- Viterbi with 559
- RS 220,200 559
- Outer Code 559
- 8-PSK/TCM Rate 2/3 560
- Decoding, with and 560
- Sequential Decoding 562
- 64 kbps, BPSK 562
- QPSK and OQPSK 562
- 2048 kbps 563
- QPSK, OQPSK 563
- Sequential with 564
- Outer Code, 512 kbps 564
- BPSK, QPSK, OQPSK 564
- Comtech Turbo Product Codec 565
- Rate 5/16 BPSK 565
- Rate 21/44 BPSK/QPSK/OQPSK 566
- Rate 3/4 QPSK/OQPSK 567
- 8-PSK/8-QAM and 16-QAM 567
- Rate 7/8 QPSK/OQPSK 568
- Rate 0.95 QPSK/OQPSK 569
- Comtech LDPC Codec 570
- Rate 1/2 BPSK/QPSK/OQPSK 570
- Comtech LDPC 571
- Rate 2/3 QPSK/OQPSK 571
- Rate 3/4 QPSK/OQPSK 572
- Comtech VersaFEC® Codec 573
- Rate 0.488 BPSK 573
- Rate 0.533, 0.631, 0.706 574
- Rate 0.642, 0.711, 0.780 575
- Rate 0.731, 0.780, 0.829 576
- Comtech VersaFEC® 577
- Codec - Extended CCM 577
- 0.576 8-QAM and 577
- 0.644 16-QAM 577
- Comtech Ultra-Low-Latency 578
- (ULL) Codec - Rate 0.493 578
- BPSK/QPSK 578
- 0.654 and 0.734 QPSK 578
- Differential 581
- Encoding 581
- No FEC, no 581
- Appendix C. AUPC (AUTOMATIC 583
- UPLINK POWER CONTROL) 583
- C.2 Setting AUPC Parameters 584
- C.2.1 Target Eb/No 584
- C.2.2 Max Range 584
- C.2.3 Alarm 585
- C.2.4 Demod Unlock 585
- C.3 Compensation Rate 585
- C.4 Monitoring 586
- (DVB-CID METACARRIER 587
- D.3 Functional Description 588
- Appendix D Revision 3 589
- Appendix E. CLOCK MODES AND 591
- DROP AND INSERT (D&I) 591
- E.2.2 TX Terrestrial 592
- E.2.3 RX Loop-Timed, RX=TX 592
- Appendix E Revision 3 593
- E.3 Receive Clocking 594
- E.4 X.21 Notes 596
- E.5 Drop and Insert 596
- E.6 Frame Formats 597
- E.7 Timeslot Selection 598
- E.11 G.703 Clock Extension 601
- E.12 Quad E1 Operation 606
- -CARRIER OPTION 607
- Appendix F Revision 3 608
- F.2.2 Margin Requirements 615
- F.2.5.3 Power Limited Links 619
- F.3 Operational References 623
- F.3.2.2 Use LST 624
- F.3.2.3 Use Satmaster 625
- F.4.1 Overview 626
- F.4.4 CnC-APC Framing 629
- F.4.5 CnC-APC Response Time 630
- F.4.6 CnC-APC Setup 630
- F.7 Glossary 635
- CnC Ratio 636
- Appendix G. E 639
- MEASUREMENT 639
- Appendix G Revision 3 641
- Appendix H. EDMAC CHANNEL 643
- H.1.2 Drop & Insert ++ 644
- H.1.3 EDMAC-3 644
- H.2 M&C Connection 644
- Appendix H Revision 3 645
- H.3 Setup Summary 646
- Appendix J. ESC++ 647
- J.3 Available Baud Rates 648
- J.4 Configuration 648
- Appendix K. ETHERNET 649
- NETWORK CONFIGURATION 649
- Appendix K Revision 3 650
- Switches 656
- K.6 Ethernet Redundancy 662
- K.7 Advanced Network Timing 663
- K.7.1 Overview 663
- Appendix L. IP PACKET 667
- PROCESSOR OPTION 667
- Appendix L Revision 3 668
- AND MODULATION (ACM) 668
- L.2.5 FAST Options 669
- L.2.5.3 Header Compression 670
- L.2.5.4 Payload Compression 670
- L.3.1 Front Panel Operation 671
- L.3.2.1 SNMP Interface 671
- L.3.2.2 Telnet Interface 672
- L.5.1 Overview 674
- Appendix M. VERSAFEC / 681
- VERSAFEC-2 ACM (ADAPTIVE 681
- CODING AND MODULATION) 681
- M.2 Background 682
- M.3 Requirements for ACM 683
- Appendix M Revision 3 684
- M.5 Disadvantages of DVB-S2 685
- M.6 VersaFEC ACM 686
- VersaFEC ACM Latency 688
- M.7 VersaFEC-2 ACM 692
- M.9 ACM Congestion Control 698
- M.10 Using ACM with AUPC 699
- M.12.1 VersaFEC ACM 702
- M.12.2 VersaFEC-2 ACM 703
- M.13.1 Overview 705
- Notes: 712
- Appendix N. IP SUB-MUX 713
- Appendix N Revision 3 714
- Appendix P. OPEN NETWORK 715
- OPERATIONS 715
- P.2.2 IBS Framing 716
- P.2.4 IBS Scrambling 716
- Appendix P Revision 3 717
- P.3.2 D&I Framing 718
- P.4 IDR 719
- Appendix Q. OFFSET QPSK 721
- Appendix Q Revision 3 722
- OF SERVICE 723
- R.2 Layer 2 QoS 724
- QoS Example 1 725
- R.2.2 Flow Control 725
- QoS Example 2 725
- QoS Example 3 726
- Appendix R Revision 3 727
- QoS Example 4 728
- QoS Example 5 728
- R.3 Layer 3 QoS 730
- QoS Example 6 730
- QoS Example 7 732
- R.4.1 Maximum Clipping 736
- R.4.2 Minimum Data Rate 736
- QoS Example 9 736
- Appendix S. TRANSMIT 739
- SPECTRUM FILTERING OPTIONS 739
- Appendix S Revision 3 740
- Appendix T. CDM-625A RADIUS 741
- T.2 Service Types 742
- T.3 RADIUS Client 742
- Appendix T Revision 3 743
- Appendix U. CDM-625A FTP 749
- MODEM-TO-MODEM 749
- CONFIGURATION 749
- 200 Port OK 750
- 226 Transfer complete 750
- Appendix U Revision 3 751
- ◄ ►arrow 753
- 480 • 333 • 2200 PHONE 756
- • 333 • 2161 FAX 756
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