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CDM-710G High-Speed Satellite Modem Revision 1
Ethernet Network Configurations MN-CDM710G
3–4
3.3.3 Hub-to-Hub with Standard Traffic using Switches
When connecting two or more “hub-sites” where there are multi-paths between each site, care must
be taken to ensure no network loops occur. Figure 3-2
depicts two hub-sites connected with two or
more modems where all the traffic being transmitted and received is on the same LAN/VLAN.
Figure 3-3
shows a simplified version of the Networking Loop. Since there is no router in the
network and all the traffic is destined to the same network, routing loops have been created.
As illustrated, two switches have been connected, each with two or more separate connections. This
is not how the Ethernet switches were designed to be used, and this configuration will cause a
network outage.
Figure 3-2. Networking Loop Example
Figure 3-3. Networking Loop Example (Simplified)
- High-Speed Satellite Modem 1
- Errata A 3
- CDM-710G 7
- Table of Contents 9
- Figures 17
- PREFACE 19
- Electrical Safety 20
- Environmental 20
- Installation 20
- International Symbols 21
- CE Mark 21
- RoHS Compliancy 21
- Warranty Policy 23
- Limitations of Warranty 23
- Exclusive Remedies 24
- Customer Support 25
- Online Customer Support 25
- Preface MN-CDM710G 26
- Chapter 1. INTRODUCTION 27
- 1.1.2 Applications 28
- 1.2 Functional Description 29
- Introduction MN-CDM710G 30
- 1.3 Features 31
- 1.3.1 Physical Description 31
- 1.3.2 Major Assemblies 31
- 1.3.3 Dimensional Envelope 32
- 1.3.4 Physical Features 33
- 1.3.4.1 Front Panel 33
- 1.3.4.2 Rear Panel 34
- 1.3.6 Verification 35
- FAST System Theory 36
- FAST Implementation 36
- FAST Accessible Options 36
- 1.4 New in this Manual 37
- Figure 1-6. Spectral Mask 39
- 1.5.2 Modulator 41
- 1.5.3 Demodulator 42
- Maximum Level 43
- Minimum Level 43
- 1.5.4 Test Functions 45
- 1.5.5 Monitor Functions 45
- 1.5.6 Remote Port Operation 45
- 1.5.7 Data Rate Range 45
- Chapter 2. INSTALLATION 49
- 2.2 Mounting 50
- Installation MN-CDM710G 51
- Chapter 3. ETHERNET NETWORK 53
- CONFIGURATIONS 53
- MPORTANT 55
- Chapter 4. REAR PANEL 67
- CONNECTOR PINOUTS 67
- 4.2 IF Connections 68
- 4.2.1 J1 Tx IF Connectors 68
- 4.2.2 J3 Rx IF Connectors 68
- 4.4 Utility Connections 70
- Chapter 5. FLASH UPGRADING 73
- Flash Upgrading MN-CDM710G 74
- 5.4 USB Procedure 76
- Chapter 6. FRONT PANEL 77
- OPERATION 77
- 6.1.2 Front Panel Keypad 79
- 6.1.4 Menu Matrix 81
- 6.2 Opening Screen 82
- 6.3 SELECT: (Main) Menu 82
- 6.3.1 (SELECT:) Config 83
- 6.3.1.2 CONFIG: Tx 87
- (CONFIG:) Tx Æ FEC 87
- (CONFIG:) Tx Æ Mod 87
- (CONFIG:) Tx Æ Code 89
- (CONFIG:) Tx Æ SymRate 89
- (CONFIG:) Tx Æ Frequency 92
- (CONFIG:) Tx Æ Pwr 92
- (CONFIG:) Tx Æ Scram 93
- 6.3.1.3 CONFIG: Rx 93
- (CONFIG:) Rx Æ FEC 93
- (CONFIG:) Rx Æ Dem (Demod) 94
- (CONFIG:) Rx Æ Code 95
- (CONFIG:) Rx Æ SymRate 96
- (CONFIG:) Rx Æ Freq 96
- (CONFIG:) Rx Æ Eb/No 97
- (CONFIG:) Rx Æ PLL 97
- ENTER when done 102
- ENTER. Note the following: 102
- (CONFIG:) Intfc1 HSSI Æ Tx 103
- (CONFIG:) Intfc1 HSSI Æ Rx 104
- IMPORTANT 106
- ENTER. The 108
- ENTER 110
- 6.3.1.7 CONFIG: Ref 111
- 6.3.1.8 CONFIG: Aux 112
- 6.3.1.9 CONFIG: Alarms 113
- (CONFIG:) Alarm Mask: Æ Tx 113
- (CONFIG:) Alarm Mask: Æ Rx 113
- ◄ ► arrow keys, then 115
- ◄ ► arrow keys 115
- 6.3.2 SELECT: Monitor 116
- Demodulator Faults / Alarms 119
- 6.3.3 SELECT: Test 120
- (Available Some Interfaces) 121
- 6.3.4 SELECT: INFO 122
- 6.3.4.2 (SELECT:) INFO Æ Tx 122
- 6.3.4.3 (SELECT:) INFO Æ Rx 123
- 6.3.5 SELECT: Save/Load 123
- 6.3.6.3 (SELECT:) UTIL Æ ID 126
- (UTIL:) FAST Æ View 129
- Chapter 7. WEB SERVER 131
- INTERFACE 131
- 7.2 User Login 132
- 7.2.1 Web Server Menu Tree 133
- 7.3.1 Home Page 134
- 7.3.1.1 Home 134
- 7.3.1.2 Home 135
- 7.3.1.3 Home 136
- 7.3.2 Admin Pages 137
- 7.3.2.1 Admin 137
- 7.3.2.2 Admin 139
- 7.3.3.2 Config Mdm 142
- Chapter 8. SNMP INTERFACE 147
- 8.3 SNMP Community Strings 148
- 8.4 SNMP Traps 148
- 8.5 Common Private MIB 149
- SNMP Interface MN-CDM710G 150
- Chapter 9. TELNET INTERFACE 151
- Telnet Interface MN-CDM710G 152
- 9.3 Using Telnet 154
- 9.3.1 Telnet Examples 154
- Chapter 10. CLOCK MODES 155
- Clock Modes MN-CDM710G 156
- 10.3 CDI-60 HSSI Interface 158
- Chapter 11. FORWARD ERROR 161
- CORRECTION OPTIONS 161
- 11.2.1 Range of Data Rates 162
- Chapter 12. SINGLE G.703 171
- 12.2 Physical Description 172
- Chapter 13. HSSI INTERFACE 175
- (CDI-60) 175
- 13.2 Physical Description 176
- 13.3 Connector Pinout 177
- Continuous Clock 178
- Gap Clock 178
- GIGABIT ETHERNET (GigE) 181
- INTERFACE (CDI-70) 181
- Gigabit Ethernet Card 182
- 14.4 Specifications 184
- 1. Download the Files 186
- Appendix A. REMOTE CONTROL 191
- A.3 RS-232 192
- A.4 Basic Protocol 192
- A.5 Packet Structure 192
- A.5.5 Message Arguments 194
- A.5.6 End Of Packet 194
- A.6.1 Modulator 196
- A.6.2 Demodulator 205
- N/A 5 bytes Query only 214
- A.6.3 Modem 217
- A.6.4 Priority System 223
- A.6.5.1 MGC Format 234
- Appendix B. Eb/No 237
- MEASUREMENT 237
- Eb/No = 10 log 238
- -1) – 10 log 238
- (Spectral Efficiency) 238
- Appendix C. FAST ACTIVATION 241
- PROCEDURE 241
- C.2 Activation Procedure 242
- Units of Weight 245
- METRIC CONVERSIONS 245
- Units of Length 245
- Temperature Conversions 245
- 480 • 333 • 2200 PHONE 246
- • 333 • 2161 FAX 246
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