Comtech EF Data SDM-309B Specifications Page 57
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Operation SDM-309B Satellite Modem
3β26 MN/U-SDM309B Rev. #
3.2 Drop And Insert Front Panel Operation
3.2.1 General
The following is a Step by Step explanation and procedure for operating the SDM 309B
modem, hereafter referred to as the modem, with an internal drop and insert channel unit.
The operation of the front panel is the same βlook and feelβ as the SDM 309 modem
without the drop and insert channel unit, except there are additional commands for the
drop and insert channel unit. The complete front panel operation is described below.
The Modem front panel control uses a tree structured menu system (Figure 3-12 to 3-17)
to access and execute all functions. The base level of this structure is the sign-on
message which is displayed at the front panel upon modem power up. Line one of the
sign-on message is the modem model number (SDM308-5) and line two is the version
number of the firmware implemented in your modem. The main level of the menu system
is the βsELECTβ menu which may be accessed from the base level by pressing any of the
arrow keys. From the βsELECTβ menu you may select any one of five functional
categories: configuration functions, monitor functions, fault functions, stored fault
functions or utility functions. Use the right and left arrow keys to move from one
selection to another, when the desired function is displayed on line two you can enter
that level by pressing the βEnterβ key. Once you have entered the functional level of your
choice, move to the desired function by using the right and left arrow keys. Refer to the
following text for information on individual functional categories and there functions.
3.2.2 Configuration
Modem configuration may be viewed or changed by entering the βCONFIGβ level from
the βsELECTβ menu on the front panel. After entering the βCONFIGβ menu, use the
right and left arrow keys to select βMODβ, βDEMODβ, or βINTERFACEβ configuration.
Enter the selected configuration menu by pressing the βENTERβ key. Use the right and
left arrow keys to view the selected configuration parameters. If it is desired to change a
configuration parameter press the βEnterβ key to begin the change process at which point
you can use the arrow keys to make the changes. After the changes are made and the
display represents the correct parameters execute the change by pressing the βEnterβ key.
When the βEnterβ key is pressed the necessary programming is initiated by the modem.
If you decide not to change the parameter prior to executing the change simply press the
βClearβ key. The following notes describe each configuration function in detail.
- SDM-309B 1
- SDM-309BSDM-309B 1
- Warranty Policy 3
- Limitations of Warranty 3
- Exclusive Remedies 3
- Disclaimer 3
- About this Manual 4
- Cautions and Warnings 4
- Metric Conversion 4
- Trademarks 5
- Customer Support 6
- Table of Contents 8
- Rev. 0 vii 10
- Rev. 0 ix 12
- Chapter 1 14
- INTRODUCTION 14
- 1-1β2 MN/U-SDM309B Rev. # 15
- Figure 1-1 SDM-309B Modem 16
- 1-1β4 MN/U-SDM309B Rev. # 17
- MN/U-SDM309B Rev. # 1-1β5 18
- 1-1β6 MN/U-SDM309B Rev. # 19
- 1.4 System Specification 20
- 1-1β10 MN/U-SDM309B Rev. # 23
- MN/U-SDM309B Rev. # 1-1β11 24
- 1-1β12 MN/U-SDM309B Rev. # 25
- Chapter 2 26
- INSTALLATION 26
- Figure 2-1 Rear Panel View 28
- 2.2.1 Data I/O 29
- 2.2.2 Remote (J6) 29
- 2.2.3 Fault (J7) 29
- 2.2.4 IF Output (CP1) 30
- 2.2.5 IF Input (CP2) 30
- 2.2.6 AC Power 30
- 2.2.7 GND 30
- 2.3 System Requirements 30
- 2.4 System Installation 31
- Chapter 3 32
- OPERATION 32
- 3.1.3 Front Panel Controls 33
- Figure 3-1 Front Panel View 34
- 3.1.4 Configuration 35
- 3.1.4.1 MOD Configuration 35
- 3.1.4.2 DEMOD Configuration 36
- 3.1.5 Monitor 41
- 3.1.6 Faults 41
- 3.1.7 Stored Faults 43
- 3.1.8 Utility 43
- Figure 3-2 Menu Tree 47
- Figure 3-3 Menu Tree 48
- Figure 3-4 Menu Tree 49
- Figure 3-5 Menu Tree 50
- Figure 3-6 Menu Tree 51
- Figure 3-7 Menu Tree 52
- Figure 3-8 IF Loopback 53
- Figure 3-9 RF Loopback 54
- 3β24 MN/U-SDM309B Rev. # 55
- MN/U-SDM309B Rev. # 3β25 56
- 3.2.1 General 57
- 3.2.2 Configuration 57
- 3.2.2.1 MOD Configuration 58
- 3.2.2.2 DEMOD Configuration 59
- 3.2.3 Monitor 65
- 3.2.4 Faults 66
- 3.2.5 Stored Faults 67
- 3.2.6 Utility 68
- Figure 3-12 Menu Tree 71
- Figure 3-13 Menu Tree 72
- Figure 3-14 Menu Tree 73
- Figure 3-15 Menu Tree 74
- Figure 3-16 Menu Tree 75
- Figure 3-17 Menu Tree 76
- 3β46 MN/U-SDM309B Rev. # 77
- Chapter 4 78
- M&C AND INTERFACES 78
- Connect JP7 to RS232 79
- MN/U-SDM309B Rev. # 4-4β3 80
- 4.1.2.2 Remote Baud Rate 81
- 4.1.2.3 Remote Address 81
- 4.1.2.4 Battery 81
- 4.1.2.8 Utility Defaults 83
- 4.2 Digital Interfaces 83
- 4.2.1 IBS/M1200P Interface 84
- 4.2.1.2 Data Interface 84
- 4.2.1.3 Transmit Multiplexer 84
- 4-4β8 MN/U-SDM309B Rev. # 85
- MN/U-SDM309B Rev. # 4-4β9 86
- 4-4β10 MN/U-SDM309B Rev. # 87
- Figure 4-4 IBS Fault Tree 88
- Figure 4-5 Jumper Table 89
- 4.2.1.4 Receive Multiplexer 90
- 4-4β18 MN/U-SDM309B Rev. # 95
- 4.2.1.9.7 Send Data (J7) 98
- 4.2.1.9.8 Receive Data (J8) 99
- MN/U-SDM309B Rev. # 4-4β23 100
- 4-4β24 MN/U-SDM309B Rev. # 101
- 4.2.2.2 Data Interface 102
- 4.2.2.3 Transmit Multiplexer 102
- 4.2.2.7 Backward Alarm 103
- MN/U-SDM309B Rev. # 4-4β27 104
- 4-4β28 MN/U-SDM309B Rev. # 105
- MN/U-SDM309B Rev. # 4-4β29 106
- 4-4β30 MN/U-SDM309B Rev. # 107
- MN/U-SDM309B Rev. # 4-4β31 108
- MN/U-SDM309B Rev. # 4-4β35 112
- 4.2.2.10.11 Faults (J11) 115
- 4.2.2.11 Rear Panel Switches 116
- 4.2.2.11.1 Drop Data Input 116
- 4.2.2.11.2 Drop Data Output 116
- 4.2.2.11.3 Insert Data Input 116
- 4-4β40 MN/U-SDM309B Rev. # 117
- MN/U-SDM309B Rev. # 4-4β41 118
- Table 4-3 119
- MN/U-SDM309B Rev. # 4-4β43 120
- 4-4β44 MN/U-SDM309B Rev. # 121
- 4.3.1 Master/Slave 122
- 4.3.1.2 Master/Slave G.703 123
- 4.3.1.3 Master/Slave X.21 123
- 4.3.2 Master/Master 123
- Chapter 5 125
- THEORY OF OPERATION 125
- Figure 5-1 Modulator Card 127
- 5-5β4 MN/U-SDM309B Rev. # 128
- MN/U-SDM309B Rev. # 5-5β5 129
- 5.1.3 Theory of Operation 130
- 5.2.1 General Description 131
- MN/U-SDM309B Rev. # 5-5β9 133
- 5-5β10 MN/U-SDM309B Rev. # 134
- MN/U-SDM309B Rev. # 5-5β11 135
- 5-5β12 MN/U-SDM309B Rev. # 136
- MN/U-SDM309B Rev. # 5-5β13 137
- 5.2.3 Theory Of Operation 138
- 5.2.3.1 Demod Processor 138
- 5.2.3.2 Viterbi Decoder 138
- 5.3 Demodulator 139
- 5.3.1 General Description 139
- 5.3.2 Specifications 140
- Figure 5-9 Demodulator Card 141
- 5-5β18 MN/U-SDM309B Rev. # 142
- 5.3.3 Theory of Operation 143
- 5.4.1 General 143
- 5.4.2 Reacquisition 144
- 5.4.3 Fast Acquisition 145
- 5.4.4 Directed Sweep 145
- Chapter 6 146
- MAINTENANCE 146
- 6-6β2 MN/U-SDM309B Rev. # 147
- MN/U-SDM309B Rev. # 6-6β3 148
- 6-6β4 MN/U-SDM309B Rev. # 149
- Table 6-1 150
- 6-6β6 MN/U-SDM309B Rev. # 151
- MN/U-SDM309B Rev. # 6-6β7 152
- 6.1.4 Test Points 153
- Figure 6-6 154
- Figure 6-7 155
- Figure 6-8 156
- Figure 6-9 157
- 6.2 Fault Isolation 158
- 6.2.1 Modulator Faults 158
- 6.2.2 Demodulator Faults 159
- Table 6-2 162
- 6-6β18 MN/U-SDM309B Rev. # 163
- MN/U-SDM309B Rev. # 6-6β19 164
- 6-6β20 MN/U-SDM309B Rev. # 165
- MN/U-SDM309B Rev. # 6-6β21 166
- 6.4 Module Replacement 167
- 6.5 Module Identification 167
- 6.6 Repacking For Shipment 167
- Table 6-3 168
- Appendix A 169
- DATA RATES AND FILTERS 169
- 1.2 Variable Rate Filters 170
- MN/U-SDM309B Rev. # Aβ3 171
- Aβ4 MN/U-SDM309B Rev. # 172
- MN/U-SDM309B Rev. # Aβ5 173
- Aβ6 MN/U-SDM309B Rev. # 174
- MN/U-SDM309B Rev. # Aβ7 175
- Aβ8 MN/U-SDM309B Rev. # 176
- MN/U-SDM309B Rev. # Aβ9 177
- Appendix B 178
- SATELLITE MODEM REMOTE 178
- 3.4 End Character 179
- 3.1 Start Character 179
- 3.2 Device Address 179
- 3.3 Command/Responses 179
- 4.2.2 Demodulator Rate 183
- 4.2.4 RF Loop-back (ON/OFF) 184
- 4.2.5 IF Loop-back (ON/OFF) 184
- 4.2.7 Sweep Reacquisition 185
- 4.2.8 Fast Acquisition Mode 185
- 4.2.9 Sweep Center Frequency 185
- 4.2.10 Sweep Width Range 186
- 4.2.11 Sweep Direction 186
- 4.3.12 Interface Buffer Size 188
- 4.3.13 Transmit Data Fault 189
- 4.3.14 Receive Data Fault 189
- 4.3.15 Drop Data Format 189
- 4.3.16 Insert Data Format 189
- 4.4.1 Time Of Day 191
- 4.4.2 Date 191
- 5.3 Modulator Status 195
- 5.4 Demodulator Status 195
- 5.5 Common Equipment Status 196
- 5.8 Bit Error Rate Status 197
- 5.8.1 Raw BER 197
- 5.8.2 Corrected BER 197
- 5.8.3 Corrected BER Log 197
- 5.9 Eb/N0 Status 198
- 5.10 Modulator Rate Status 198
- 5.11 Demodulator Rate Status 198
- 5.13 Current Sweep Value 199
- 5.16 Stored Faults 199
- MN/U-SDM309B Rev. # B-Bβ23 200
- B-Bβ28 MN/U-SDM309B Rev. # 205
- 5.20 Change Status 206
- 5.21 Equipment Type 206
- B-Bβ30 MN/U-SDM309B Rev. # 207
- Appendix C 208
- EXTERNAL CHANNEL UNIT 208
- C-Cβ2 MN/U-SDM309B Rev. # 209
- MN/U-SDM309B Rev. # C-Cβ3 210
- C-Cβ4 MN/U-SDM309B Rev. # 211
- MN/U-SDM309B Rev. # C-Cβ5 212
- C-Cβ6 MN/U-SDM309B Rev. # 213
- MN/U-SDM309B Rev. # C-Cβ7 214
- C-Cβ8 MN/U-SDM309B Rev. # 215
- MN/U-SDM309B Rev. # C-Cβ9 216
- C-Cβ10 MN/U-SDM309B Rev. # 217
- 2.0 Digital Interfaces 218
- 2.1.1 Functional Description 218
- C-Cβ12 MN/U-SDM309B Rev. # 219
- MN/U-SDM309B Rev. # C-Cβ13 220
- C-Cβ14 MN/U-SDM309B Rev. # 221
- 2.1.2 Connector Pinouts 223
- 2.1.3 Specification 223
- 2.2 V.35 Interface 224
- 2.2.1 Functional Description 224
- MN/U-SDM309B Rev. # C-Cβ19 226
- C-Cβ20 MN/U-SDM309B Rev. # 227
- 2.2.2 Connector Pinouts 228
- 2.2.3 Specification 228
- 3.0 Front Panel Operation 229
- 3.1 Configuration 229
- 3.2 Monitor 232
- 3.3 Faults 232
- 3.4 Stored Faults 233
- 3.5 Utility 233
- Figure C-13 Menu Tree 235
- Figure C-14 Menu Tree 236
- Figure C-15 Menu Tree 237
- MN/U-SDM309B Rev. # C-Cβ31 238
- Appendix D 239
- SOFTWARE CHANGE 239
- SPECIFICATIONS 239
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