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Comtech-ef-data SDM-2020 User Manual Page 2
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Satellite Demodulato
1
Installation and O
1
Errata A
3
Errata B
5
Errata C
7
SDM-2020
9
Errata D
10
Customer Support
12
Table of Contents
13
Preface MN/SDM2020D.IOM
14
Figures
18
Metric Conversion
22
Trademarks
22
Installation
24
Warranty Policy
26
Limitations of Warranty
26
Exclusive Remedies
26
Disclaimer
26
Chapter 1. INTRODUCTION
27
Mbps, with maximum
28
1.2 Assemblies
30
1.3 FAST Options
30
1.4.2 Transmit/Receive Data
32
Chapter 2. INSTALLATION
35
2.2 Installation
36
J3 PARALLEL J4 SERIAL J5 AUX
38
Chapter 3. EXTERNAL
41
CONNECTIONS
41
3.2 Connections
44
3.2.2 Fault Connector (J2)
45
3.2.3 Monitor Points (J21)
46
3.2.5 AC Power
47
3.2.6 Fuse Data
48
3.2.7 DC Power (Optional)
48
3.2.8 Ground (GND) or Earth
48
SYSTEM TOPOLOGY (FAST)
49
CHAPTER 4. FULLY ACCESSIBLE
49
4.1.1.1 Activation Procedure
50
Select Features:
50
Verify Upgrade
52
Chapter 5. SPECIFICATION
53
5.2 BER Performance
58
Specification
59
5.3 Data Rates
61
5.4 Fault Tree
62
Chapter 6. FRONT PANEL
65
OPERATION
65
6.1.1 Front Panel
66
6.1.2 LED Indicators
67
6.1.3 Front Panel Keypad
68
6.1.4 Menu System
69
SDM-2020D
70
MENU TREE
70
IMPORTANT
105
RX INTRF Firmware
107
to set the baud
112
to execute the change
114
(Conditional)
116
6.1.13 Initial Defaults
122
(see Note 4) 13 VDC
123
(see Note 5) Off
123
(see Note 5)
123
6.1.14 (C+N)/N to C/N and E
124
Conversion
124
Conversion Chart
125
7.2 Description
128
7.3 Configuration
130
7.3.1 User Interfaces
131
7.3.1.3 Auxiliary, J5
134
Chapter 8. LOW VOLTAGE
137
DIFFERENTIAL (LVDS)
137
INTERFACE
137
8.1.2 Description
138
8.1.3 Configuration
139
DEMODULATOR
140
MODULATOR
140
8.1.4 User Interfaces
141
8.1.4.2 Auxiliary, J5
143
9.1.1 Applicable Documents
145
9.1.2 Description
146
9.1.3 User Interfaces
149
10.1.1 Applicable Documents
154
10.1.2 Description
154
10.1.3 Specifications
154
159
10.1.4.6 Terrestrial Timing
162
10.1.5.2 Faults
165
11.1.2 Description
168
11.1.3 Specifications
171
11.1.5.1 Buffer Size
176
11.1.5.2 Frame Structures
176
11.1.5.5 Buffer Centering
177
interfere with
178
11.1.7 Test Modes
179
11.1.7.1 Interface Loopback
179
Connectors J3, J4 & J6
180
12.1.2 Description
184
0.0 V ± 0.5 V
186
13.1.2 Description
192
(see text)
193
13.1.3.1 Jumper Selection
195
13.1.4 Loopback Connection
197
13.1.5 Loop Thru
197
Appendix A. REMOTE CONTROL
201
COMMANDS
201
A.1.2 Start Character
202
A.1.3 Device Address
202
A.1.4 End Character
202
A.1.5 Command/Response
203
RS-422 Interface
208
LVDS Interface
209
ASI/RS-422 Interface
209
ASI/LVDS Interface
209
SMPTE-310 Interface
210
G.703 Interface
210
ECL_HSSI Interface
211
A.1.11 Configuration Status
214
A.1.13 Stored Faults
220
A.1.16 Data Interfaces
227
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