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Comtec CDM-840 - User Manual
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Part Number MN-CDM840 / CD-CDM840
Revision 3
IMPORTANT
NOTE:
The
i
nformation contained in
t
h
is document
supersedes a
ll
previously
published
information regarding this product.
Product specifications
are subject to change
without prior notice.
CD
M
-
8
4
0
Advanced VSAT Series Remote Router
Installation and Operation Manual
For Firmware Version 1.6.2.X or higher
2
Table of Contents
Main Page
Default Chapter
8
Table of Contents
8
Figure 1-1. CDM-840 Remote Router
33
Figure 1-2. Advanced VSAT Series Network Topology Example
33
Features
36
Physical Description
36
Standard Assemblies
36
Optional Assemblies
36
Dimensional Envelope
37
Figure 1-3. CDM-840 Dimensional Envelope
37
Physical Features
38
Front Panel Features
38
Figure 1-4. CDM-840 - Front Panel View
38
Rear Panel Features
39
Figure 1-5. CDM-840 - Rear Panel View
39
Rear Panel Optional Features
40
Rear Panel Standard Features
40
On-Site Firmware Updates
41
On-Site Operational Upgrades
41
Monitor and Control Interfaces
41
Specifications
42
Product Features
42
Physical, Power, and Environmental
42
Modulator
43
Transmit
43
Block up Converter (BUC) Support
44
Demodulator
44
Receive
44
Low Noise Block down Converter (LNB) Support
45
BER (Bit Error Rate)
46
BER Monitor Functions
46
Regulatory Compliance
46
Chapter 2. Installation
47
Unpack and Inspect the Shipment
47
Figure 2-1. Unpack and Inspect the Shipment
47
Install the Unit into a Rack Enclosure
48
2.2.1 Install the Optional Rear Support Brackets Kit
49
Figure 2-2. Install the Unit into a Rack Enclosure
49
Figure 2-3. Install the Optional Rear Support Brackets Kit
50
Chapter 3. Rear Panel Connections
53
Overview - Cabling Connection Types
53
Figure 3-1. Coaxial Connector Examples
54
Figure 3-2. D-Subminiature Connector Examples
56
Cabling Connections
57
Table 3-1. CDM-840 Rear Panel Connectors
57
Figure 3-3. CDM-840 Cabling Connections
57
IF Connector Group
58
L-BAND Rx' if Connector
58
L-BAND Tx' if Connector
58
Terrestrial Data Connector Group
59
'G.703 | out / IN' Connectors
59
ETHERNET | MANAGEMENT | FE' (Fast Ethernet) Connector (RJ-45F)
60
REDUNDANCY' Interface Connector (DB-9F) (FUTURE)
60
Table 3-2. 'REDUNDANCY' Connector Pinouts
60
Utility Connector Group
60
CONSOLE' Interface Connector (DB-9M)
61
Table 3-3. 'CONSOLE' Connector Pinouts
61
ALARMS' Interface Connector (DB-15M)
62
Table 3-4. 'ALARMS' Connector Pinouts
62
CDM-840 Ground and Power Connections
63
Common Chassis Ground Interface
63
Figure 3-4. Chassis Ground Interface
63
230V Alternating Current (AC) Power Interface (Standard)
64
AC Operation - Apply Power
64
Figure 3-5. AC Power Interface
64
Figure 3-6. Apply AC Power to the Unit
64
AC Operation - Replace the Fuses
65
Figure 3-7. Replace the AC Fuses
65
48V Direct Current (DC) Power Interface (Optional)
66
DC Operation - Apply Power
66
Figure 3-8. DC Power Interface
66
Figure 3-9. Apply DC Power to the Unit
66
DC Operation - Replace the Fuses
67
Figure 3-10. Replace the DC Fuses
67
Chapter 4. Updating Firmware
69
Firmware Update Overview
69
Getting Started: Prepare for the Firmware Download
70
Download and Extract the Firmware Update
74
Perform the Ethernet FTP Upload Procedure
76
Chapter 5. Fast Activation Procedure
79
FAST Overview
79
FAST Activation Via the HTTP Interface
80
Figure 5-1. CDM-840 HTTP Interface - 'Admin | FAST' Page
80
5.2.1 FAST Configuration
81
5.2.2 FAST Upgrade
82
Chapter 6. Ethernet-Based Remote Product Management
83
Overview
83
Ethernet Management Interface Protocols
84
6.2.1 Ethernet Management Interface Access
84
Figure 6-1. CDM-840 Serial Interface
84
6.2.2 SNMP Interface
85
Management Information Base (MIB) Files
85
SNMP Community Strings
86
6.2.3 HTTP (Web Server) Interface
86
User Login
86
HTTP Interface - Operational Features
87
Figure 6-2. CDM-840 Remote Router Virtual Front Panel
87
Virtual Front Panel
87
Virtual Front Panel Leds
88
Navigation
89
Action Buttons
90
Drop-Down Lists
90
Page Sections
90
Text or Data Entry
90
HTTP Interface Menu Tree Diagram
91
Figure 6-3. CDM-840 HTTP Interface - Menu Tree (FW Ver. 1.6.2.5)
91
HTTP Interface
92
Home
92
Home | Home
92
Figure 6-4. Home | Home Page
92
Home | Contact
93
Figure 6-5. Home | Contact Page
93
Admin (Administration)
94
Admin | Access
94
Figure 6-6. Admin | Access Page
94
Admin | SNMP
95
Figure 6-7. Admin | SNMP Page
95
Admin | FAST
96
Figure 6-8. Admin | FAST Page
96
Admin | Firmware
97
Admin | Auto Logout
98
Admin | VMS
99
Configuration
101
Configuration | Interface
101
Configuration | Interface | Fe Mgt
101
Configuration | Interface | GE
102
Configuration | Interface | E1
104
Configuration | Interface | E1 | Configuration
104
Configuration | Interface | E1 | Time Slots
106
Configuration | WAN
107
Configuration | WAN | Demod
107
Configuration | WAN | Demod | Config
107
Configuration | WAN | Demod | ACM (Adaptive Coding and Modulation)
112
Configuration | WAN | Mod (Modulator)
114
Configuration | WAN | Mod | Config
114
Configuration | WAN | Mod | ACM
118
Configuration | WAN | Mod | DPC
120
Configuration | WAN | Qos (Quality of Service)
122
Page Functionality Common for All Qos Control Modes
123
Page Functionality Specific to Active Qos Mode
126
Configuration | WAN | Label
130
Configuration | WAN | Compression
131
Configuration | WAN | BUC (Block up Converter)
132
Configuration | WAN | LNB (Low Noise Block down Converter)
134
Configuration | Network
135
Configuration | Network | Routing
135
Configuration | Network | Routing | Routes
135
Configuration | Network | Routing | IGMP
137
Configuration | Network | Routing | DHCP
139
Configuration | Network | ARP
140
Configuration | Network | Working Mode
141
Configuration | Network | DNS
142
Configuration | ECM (Entry Channel Mode)
143
Configuration | Dscpc (Dynamic Single Carrier Per Channel)
146
Status
148
Status | Statistics
148
Status | Statistics | Traffic
148
Status | Statistics | Network / Router
150
Status | Statistics | Compression
151
Status | Statistics | Qos
152
Page Functionality Common for All Qos Control Modes
153
Page Functionality Specific to Active Qos Control Mode
154
Status | Statistics | E1 Pages (CDM-840 Only)
155
Status | Statistics | E1 | Transmit
155
Status | Statistics | E1 | Receive
156
Status | Statistics | Trending (CDM-840 Only)
158
Status | Monitor
160
Status | Monitor | Events
160
Status | Monitor | Alarms
161
Utility
163
Utility | Utility
163
Utility | Carrier ID
166
Utility | Reboot
167
Chapter 7. Serial-Based Remote Product Management
169
Overview
169
Remote Commands and Queries Overview
171
Basic Protocol
171
Packet Structure
172
Start of Packet
173
Target Address
173
Instruction Code
173
Instruction Code Qualifier
173
7.2.2.5.1 Controller-To-Target Instruction Code Qualifiers
174
7.2.2.5.2 Target-To-Controller Instruction Code Qualifiers
174
Optional Message Arguments
175
End of Packet
176
Remote Commands and Queries
177
Transmit (Tx) Parameters Commands and Queries
180
Receive (Rx) Parameters Commands and Queries
182
Demodulator Status Commands and Queries
184
Transmit (Tx) BERT Command or Query
185
Receive (Rx) BERT Command or Query
185
BUC (Block up Converter) Parameters Commands and Queries
185
LNB (Low-Noise Block down Converter) Parameters Commands and Queries
189
Unit Parameters Commands and Queries
190
Bulk Configuration String Commands
197
Redundancy Commands and Queries
198
Vipersat Management System (VMS) Commands and Queries
199
Entry Channel Mode (ECM) Commands and Queries
200
Miscellaneous Utility Commands and Queries
201
Appendix A. Reference Documentation
203
Overview
203
FEC (Forward Error Correction) Options
204
ACM/VCM (Adaptive Coding and Modulation / Variable Coding and Modulation) Operation
205
BPM (Bridge Point-To-Multipoint) Operation
206
ECM (Entry Channel Mode) Operation
207
Dmesh (VMS Dynamic Mesh) Connectivity
208
DPC (VMS Dynamic Power Control) Operation
209
Appendix B. Fec (Forward Error Correction) Options
211
FEC Overview
211
DVB-S2: LDPC and BCH
211
Range of Data Rates
212
BER, QEF, Eb/No, Es/No Spectral Efficiency, and Occupied Bandwidth
212
Versafec (Short-Block LDPC
213
Range of Data Rates
214
Rx/Tx Error Performance Characteristics
214
Table B-1. the Versafec Modcod Set
214
Appendix C. Data Collection
223
Data Collection Overview
223
Initial Setup of Communications between the CDM-840 and the User PC
225
Collect the Pre-Reboot Diagnostic Information from the CDM-840
226
Collect and Report the Post-Reboot Diagnostic Information from the CDM-840
227
Serial Adapter Cable Fabrication Specifications Reference
229
Appendix D. Versafec Return Link Acm (Adaptive Coding and Modulation) Option
231
Functional Overview
231
Background
232
Table D-1. the Versafec Modcod Set
233
Table D-2. Versafec Implementation of ACM - 100 Ksymbols/Sec Example Case
234
Versafec ACM
235
CDM-840 Versafec ACM Operation
235
Versafec ACM Operation Using the HTTP Interfaces
235
Troubleshooting
238
Monitoring ACM Performance
238
Modcod Switch Points
238
ACM Congestion Control
239
Notes and Recommendations
240
Summary of Specifications
241
Appendix E. Bpm (Bridge Point-To-Multipoint) Operation
243
Functional Overview
243
BPM Terminology
244
Supported Network Configurations
245
Flat Network
245
Flat Network with Routers
245
VLAN Trunking
246
Packet Processing
246
Traffic Network / Ethernet Switch Behavior
246
Management Network
247
IEEE 802.1Q Support
248
VLAN Trunking
248
Access Mode Support
248
Multiple VLAN Tagging Support
249
Multicast BPM Behavior
249
Multicast Management/Routed Behavior (no Change
250
BPM and Group Qos with Outbound ACM/VCM
250
Hub Network Configuration
251
Compatible Features and Detailed Specifications
255
Summary
256
Appendix F. Carrier ID (Dvb-CID Metacarrier
257
Functional Overview
257
About Metacarrier
257
Functional Description
258
CDM-840 Carrier ID Operation
259
CID Operation - CDM-840 HTTP Interface
259
CID Operation - Serial Remote Control
262
Appendix G. Ecm (Entry Channel Mode
265
Functional Overview
265
ECM Terminology
265
ECM Overview
266
ECM Message Processing
269
ECM Operational Scenarios
271
Scenario 1 - VMS Initial Registration Process
271
Scenario 2 - Reverted or Auto-Recovered Messages
271
G.2.2.1 ECM Revert Cycle Timing
272
G.2.2.2 Ecmv2 Backoff Algorithm
272
ECM Operation
274
ECM Operation - CDM-840 Serial Remote Control
275
ECM Operation - HTTP Interfaces
276
G.3.2.1 CDM-840 HTTP Operation - Remote Router Terminals
278
HTTP Operation - Hub Channel Controller (HCC
281
Tap Message
282
HCC Configuration
283
Appendix H. Header and Payload Compression
285
Functional Overview
285
Traffic Optimization
286
Compression Performance
286
Table H-1. Comtech AHA Gzip Performance Comparisons
287
Table H-2. Comtech AHA Gzip Performance Specifications Support
287
CDM-840 Header and Payload Compression Operation
288
Enable or Disable Header and Payload Compression Operation
290
Configure Header and Payload Compression Refresh Rates
291
Table H-3. Compression Performance
291
Appendix J. Return Group Qos (Quality of Service
295
Overview
295
Qos List of Supported Rfcs (Requests for Comment
295
Qos Terminology
295
Return 2-Level Group Qos
297
Qos Operation Via Remote Product Control
299
Qos Groups
301
Qos Group Matching
301
Maximum Clipping
316
Minimum Data Rate
316
Qos Statistics Reporting
319
Appendix K. Ran/Wan Optimization
321
Overview
321
K.1.2 RAN Inefficiency
322
E1 RAN Optimization
323
K.2.1 Process Overview
324
Traffic Throughput (Kbps) Graph
330
RAN Link Quality Graph
330
Ranop Savings Graph
331
Appendix L. Dmesh (Vms Dynamic Mesh) Solutions
333
Overview
333
Operational Features
334
VMS (Vipersat Management System
334
Return Link Versafec® ACM (Adaptive Coding and Modulation
336
Versafec
336
ACM (Adaptive Coding and Modulation
336
ACM and Dmesh
337
ACM and DPC (Dynamic Power Control
337
Operational Example
338
Requirements for Bandwidth-On-Demand and Dmesh with SHOD (Single Hop on Demand
338
Dmesh Operation
338
Create a Distribution List
339
Summary
343
Table L-1. Comtech EF Data Product Compatibility Reference
343
Compatibility
343
Appendix M. Dpc (Vms Dynamic Power Control
345
Overview
345
M.1.1 Background
346
Theory of Operation
346
M.2.1 about DPC
346
M.2.2 DPC Functionality
347
Entrance Link Cabling
347
Operational Essentials
348
Power Reference
348
Rated Maximum Power
349
Reference Calibration
349
Target Power
349
Terminal Maximum Power
349
M.2.3 DPC Operational Considerations
351
Adaptive Control Loop (ACL) Components
352
Closed Loop Mechanism
353
ACL Timers
354
LQRM Failure and Recovery Steps
355
DPC with ACM
356
Terminal Maximum Power
357
DPC with ACM and Hub Backoff
358
Hub Fade Control
359
M.2.4 Roaming with DPC
360
DPC Operation
361
M.3.1 DPC Operation Using the HTTP Interfaces
362
Configure DPC
363
Power Reference in DPC Operation
364
Set Power Reference
364
DPC - Status Reporting
368
DPC - Operational Changes
368
Firmware Update
369
Final Considerations
369
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Comtec CDM-840 Specifications
General
Brand
Comtec
Model
CDM-840
Category
Network Router
Language
English
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