Comtech-ef-data SMS-758 User Manual Page 157
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SMS-758 Modem Protection Switch Remote Control Operation
MN/SMS758 Rev. 3 B–13
B.3.5.3 Mode Command
The Mode command directs the SMS-758 to enter the specified mode.
Command:
<add/MODE_yyyyyy”cr”
Response:
>add/MODE_yyyyyy”cr”
Status Only:
<add/MODE_”cr”
Response:
>add/MODE_yyyyyy”cr””lf”]
Where: yyyyyy = REMOTE, LOCAL, AUTO, or BYPASS.
B.3.5.4 Set Backup Modulator Online/Offline
The modulator online command puts the specified backup modulator online for the
specified prime modulator.
Note: If “0” is used as the prime modulator argument “x”, the specified backup
modulator is offline or will be taken offline.
Command:
<add/MOL_By_x”cr”
Response:
>add/MOL_By_x”cr””lf”]
Status Only:
<add/MOL_By”cr”
Response:
>add/MOL_By_x”cr””lf]
Where:
y = 1 or 2 (backup modulator number).
x = 0 to 8 (prime modulator number).
B.3.5.5 Set Backup Demodulator Online/Offline
The demodulator online command puts the specified backup demodulator online for the
specified prime demodulator.
Note: If “0” is used as the prime demodulator argument “x”, the specified backup
demodulator is offline or will be taken offline.
Command:
<add/DOL_By_x”cr”
Response:
>add/DOL_By_x”cr””lf”]
Status Only:
<add/DOL_By”cr”
Response:
>add/DOL_By_x”cr””lf”]
Where:
y = 1 or 2 (backup demodulator number).
x = 0 to 8 (prime demodulator number).
- SMS-758SMS-758 1
- Warranty Policy 4
- Limitations of Warranty 4
- Exclusive Remedies 4
- Disclaimer 4
- About this Manual 5
- Audience 5
- Organization 5
- Revision Numbering Scheme 6
- Heading Hierarchy 7
- Case Sensitivity 7
- Military Standards 7
- Trademarks 7
- Related Documents 8
- Returning a Product 8
- Upgrading a Product 8
- Product Training 8
- Table of Contents 9
- MN/SMS758 Rev. 3 vii 11
- MN/SMS758 Rev. 3 ix 13
- MN/SMS758 Rev. 3 xi 15
- Chapter 1 17
- INTRODUCTION 17
- 1.3 Description 18
- SMS-758 MODEM PROTECTION 19
- SW ITCH SW 1.00 PRESS NEXT 19
- 1–4 MN/SMS758 Rev. 3 20
- MN/SMS758 Rev. 3 1–5 21
- 1–6 MN/SMS758 Rev. 3 22
- MODULATOR SWITCH 22
- MN/SMS758 Rev. 3 1–7 23
- 1–8 MN/SMS758 Rev. 3 24
- 1–12 MN/SMS758 Rev. 3 28
- Chapter 2 29
- INSTALLATION 29
- 2.2 System Installation 30
- 2.2.1 Switch Setup 30
- 2.2.2 Modem Setup 31
- 2.3 System Requirements 31
- 2.4 External Connections 32
- 2.4.1 Data I/O 33
- 2.4.3 Modem Control RS485 34
- MN/SMS758 Rev. 3 2–9 37
- 2.4.12 AC Power (J37, J38) 38
- 2.4.13 DC Power (J37, J38) 38
- 2.4.14 Ground (J37) 38
- Chapter 3 39
- OPERATION 39
- 3.1.1 LED Indicators 40
- 3.1.2 Keypad and LCD Display 40
- MN/SMS758 Rev. 3 3–3 41
- 3–4 MN/SMS758 Rev. 3 42
- MN/SMS758 Rev. 3 3–5 43
- 3.2 Switch Setup 44
- 3.2.1 System Setup 44
- 3.2.1.1 Time and Date Menu 44
- 3.2.1.2 Downlink Option 45
- 3.2.1.7 Modem Addresses Menu 46
- 3.2.2 Modem Setup 46
- 3.2.2.1 Interface Type Menu 47
- 3–10 MN/SMS758 Rev. 3 48
- 3.2.2.5 Demodulator Delay 49
- 3.2.2.6 Modulator Delay 49
- 3.2.3 Modem Configuration 50
- 3.2.3.3 Modem Verification 51
- 3.2.4 Faults 51
- 3.2.4.3 M:N Faults 52
- 3.2.4.4 Battery Faults 52
- 3.2.5 Operational Modes 53
- 3.2.5.1 Bypass Mode 53
- 3.2.5.2 Auto Mode 53
- 3–16 MN/SMS758 Rev. 3 54
- MN/SMS758 Rev. 3 3–17 55
- (Demodulator and Modem) 56
- MN/SMS758 Rev. 3 3–19 57
- 3.2.5.3 Local Mode 58
- 3.2.5.4 Remote Mode 58
- 3.2.6 Status Menu 59
- 3–22 MN/SMS758 Rev. 3 60
- Chapter 4 61
- THEORY OF OPERATION 61
- 4.1.1 Theory of Operation 62
- 4.1.3 Remote Baud Rate 63
- 4.1.4 Remote Address 63
- 4.1.6 Battery 64
- MN/SMS758 Rev. 3 4–5 65
- 4.3.1 Command Structure 67
- 4.4.1 Controller fault 70
- 4.4.2 M:N Fault 70
- MN/SMS758 Rev. 3 4–11 71
- 4.6 Interface Switches 72
- 4.6.1.1 Specification 72
- 4.6.1.2 Connector Pinouts 73
- 4–14 MN/SMS758 Rev. 3 74
- MN/SMS758 Rev. 3 4–15 75
- 4.6.2 V.35 Interface Switch 76
- 4.6.2.1 Specification 76
- 4.6.2.2 Connector Pinouts 77
- 4–18 MN/SMS758 Rev. 3 78
- MN/SMS758 Rev. 3 4–19 79
- 4–20 MN/SMS758 Rev. 3 80
- 4.6.3.2 Connector Pinouts 82
- 4.6.3.2.1 V.35 Option 82
- 4.6.3.2.2 RS-232 Option 83
- 4–24 MN/SMS758 Rev. 3 84
- MN/SMS758 Rev. 3 4–25 85
- 4–26 MN/SMS758 Rev. 3 86
- 4.6.4.1 Specification 87
- 4.6.4.2 Connector Pinouts 87
- 4–28 MN/SMS758 Rev. 3 88
- MOD RELAYS 89
- DEMOD RELAYS 89
- 4.6.5 IDR Interface Switch 90
- 4.6.5.1 Specification 91
- 4.6.5.2 Connector Pinouts 91
- MN/SMS758 Rev. 3 4–33 93
- 4.6.6.1 Specification 94
- 4.6.6.2 Operation 95
- 4.6.6.3 Connector Pinouts 95
- MN/SMS758 Rev. 3 4–37 97
- 4–38 MN/SMS758 Rev. 3 98
- 4.6.7.1 Specification 99
- 4.6.7.2 Operation 100
- 4.6.7.3 Connector Pinouts 100
- 4–42 MN/SMS758 Rev. 3 102
- Table 4-7. Prime IBS Jumpers 103
- 104
- 4.7 Address Decoder/Driver 105
- 4.7.1 Specifications 105
- 4.7.2 Theory of Operation 105
- RELAY-REMOTE 106
- EXT INTERFACE CONTROL 106
- MODEM INTERFACE CONTROL 106
- IF SWITCH RELAY DRIVER 107
- FSCM 4J515 107
- AS/1316 REV _______ 107
- S/N ________________ 107
- 4.9 IF Switch 108
- 4.9.1 Specifications 108
- 4.9.2 Theory of Operation 108
- MN/SMS758 Rev. 3 4–49 109
- DEMODULATOR SWITCH 109
- 4.10 Online Telemetry 110
- 4.10.1 Specifications 110
- 4.10.2 Theory of Operation 110
- MN/SMS758 Rev. 3 4–51 111
- 4.11 Power Supply 112
- 4.11.1 Specifications 112
- Chapter 5 113
- MAINTENANCE 113
- 5.1.3 M:N Faults 114
- 5.1.4 Battery Faults 114
- 5.2 Fault Isolation 115
- 5.2.1 Modulator Operation 115
- 5.2.2 Demodulator Operation 116
- 5.2.3 M:N Operation 117
- 5.2.4 Battery 118
- 5.3 Module Replacement 119
- 5.3.1 Power Supply 119
- 5.3.2 IF Switch 120
- 5.3.3 Switch Driver 120
- 5.3.4 Address Decoder/Driver 120
- 5.3.5 M&C 120
- 5.3.6 Online Telemetry 121
- 5.3.7 Interface Switches 121
- 5.4 Repacking for Shipment 121
- 5.4.1 Return Instructions 121
- 5.4.2 Repacking Instructions 121
- 5–10 MN/SMS758 Rev. 3 122
- Appendix A 123
- REMOTE CONTROL OPERATION: 123
- MODEM SWITCH 123
- A.2.1 Start Character 124
- A.2.2 Device Address 124
- A.2.3 Command/Responses 125
- A.2.4 End Character 125
- A.3.3.1 Prime Modem Address 127
- A.3.3.2 Backup Modem Address 128
- A.3.3.5 Modem Priority 129
- A.3.3.6 Modem Online Delay 129
- A.3.4.1 Configuration Status 129
- A.3.4.2 Modulator Status 131
- A.3.4.3 Demodulator Status 131
- A.3.4.7 Equipment Type 132
- A.3.5 Operational Commands 132
- A.3.5.1 Time of Day 132
- A.3.5.2 Date 133
- A.3.5.3 Mode Command 133
- (see Note) 136
- A–22 MN/SMS758 Rev. 3 144
- Appendix B 145
- INDEPENDENT MOD/DEMOD 145
- B.2.1 Start Character 146
- B.2.2 Device Address 146
- B.2.3 Command/Responses 147
- B.2.4 End Character 147
- B.3.3.1 Prime Modem Address 151
- B.3.3.2 Backup Modem Address 151
- B.3.4.1 Configuration Status 152
- MN/SMS758 Rev. 3 B–9 153
- B.3.4.2 Modulator Status 154
- B.3.4.3 Demodulator Status 155
- B.3.4.7 Equipment Type 156
- B.3.5 Operational Commands 156
- B.3.5.1 Time of Day 156
- B.3.5.2 Date 156
- B.3.5.3 Mode Command 157
- (see Note below) 160
- Appendix C 169
- 7 DOWNLINK OPTION 169
- C.1 External Connections 170
- C.1.1 D/L Switch Input (J7) 170
- C.1.3 Downlink Inputs 171
- C.1.4 Backup Demod (J11) 171
- C.2 Front Panel Operation 171
- C–4 MN/SMS758 Rev. 3 172
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