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SMS-758
Comtech EF Data SMS-758 Manuals
Manuals and User Guides for Comtech EF Data SMS-758. We have
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Comtech EF Data SMS-758 manual available for free PDF download: Installation And Operation Manual
Comtech EF Data SMS-758 Installation And Operation Manual (172 pages)
Modem Protection Switch
Brand:
Comtech EF Data
| Category:
Switch
| Size: 1.43 MB
Table of Contents
Exclusive Remedies
4
Limitations of Warranty
4
Warranty Policy
4
About this Manual
5
Case Sensitivity
7
Related Documents
8
Table of Contents
9
Chapter 1. Introduction
17
Scope
17
Purpose and Function
17
MN/SMS758 Rev
17
Description
18
Performance Specification
26
Chapter 2. Installation
29
Unpacking
29
System Installation
30
Switch Setup
30
Modem Setup
31
System Requirements
31
External Connections
32
Data I/O
33
External RS485 and RS232 Interface (J1 and J2)
34
Modem Control RS485
34
On-Line Status (J4, J5)
35
Relay-Remote/Fault (J6)
36
Downlink Inputs (J7 through J10, J12 through J15)
36
Back-Up Demods (J11, J16)
37
Prime Mod Inputs (J18 through J25)
37
Back-Up Mod Inputs (J26, J36)
37
Offline if Outputs (J17, J27)
37
IF Outputs (J28 through J35)
38
AC Power (J37, J38)
38
DC Power (J37, J38)
38
Ground (J37)
38
Chapter 3. Operation
39
Front Panel Description
39
LED Indicators
40
Keypad and LCD Display
40
Switch Setup
44
System Setup
44
Time and Date Menu
44
Active Backup Demodulators Menu
45
Active Backup Modulators Menu
45
Active Prime Demodulators Menu
45
Active Prime Modulators Menu
45
Downlink Option
45
Modem Addresses Menu
46
Modem Setup
46
Interface Type Menu
47
Demodulator Priority Menu
48
Downlink Selection Menu
48
Modulator Priority Menu
48
Demodulator Delay
49
Modulator Delay
49
Modem Configuration
50
Modem Configuration Menu
50
Prime and Backup Modem Configuration
50
Modem Verification
51
Faults
51
Modulator Operation Fault
51
Battery Faults
52
Demodulator Operation Fault
52
M:N Faults
52
Operational Modes
53
Auto Mode
53
Bypass Mode
53
Local Mode
58
Remote Mode
58
Status Menu
59
Chapter 4. Theory of Operation
61
Monitor and Control
61
Theory of Operation
62
M&C Serial Interface
62
Remote Baud Rate
63
Remote Address
63
External Remote Serial Interface Selection
64
Battery
64
Error Response Function
64
External I/O Interrupt Arbitration
66
Modem Control Interface Specification
66
Relay-Remote Interface Specification
67
Command Structure
67
Fault Interface Specification
70
Controller Fault
70
M:N Fault
70
Demodulator Signal Fault
71
Online Status Specification
71
Modulator Online Status
71
Demodulator Online Status
71
Interface Switches
72
RS-422/449 and MIL-STD-188-114/RS-449 Interface Switch
72
Specification
72
Connector Pinouts
73
Interface Switch
76
Specification
76
V.35 Interface Switch
76
Connector Pinouts
77
V.35/RS-232 Interface Switch
80
Electrical Specifications
81
Connector Pinouts
82
RS-232 Option
83
And G.703 Interface Switch
86
Connector Pinouts
87
Specification
87
IDR Interface Switch
90
Connector Pinouts
91
Specification
91
2:N IDR Interface Switch (1877 and 1879)
94
Specification
94
Connector Pinouts
95
Operation
95
2:N IBS/ASYNC Interface Switch (1694 and 1695)
99
Specification
99
Connector Pinouts
100
Operation
100
Address Decoder/Driver
105
Specifications
105
Theory of Operation
105
IF Switch Driver
107
Specifications
107
Theory of Operation
107
IF Switch
108
Specifications
108
Theory of Operation
108
Online Telemetry
110
Specifications
110
Theory of Operation
110
Power Supply
112
Specifications
112
Chapter 5. Maintenance
113
Fault Descriptions
113
Modulator Operation Fault
113
Demodulator Operation Fault
113
M:N Faults
114
Battery Faults
114
Fault Isolation
115
Modulator Operation
115
Demodulator Operation
116
M:N Operation
117
Battery
118
Module Replacement
119
Power Supply
119
IF Switch
120
Switch Driver
120
Address Decoder/Driver
120
M&C
120
Online Telemetry
121
Interface Switches
121
Repacking for Shipment
121
Return Instructions
121
Repacking Instructions
121
Appendix A. Remote Control Operation: Modem Switch
123
General
123
Message Structure
123
A.1 General
123
A.2.1 Start Character
124
Device Address
124
Start Character
124
A.2.3 Command/Responses
125
Command/Responses
125
End Character
125
Configuration Commands/Responses
126
Modulator Configuration Commands/Responses
126
Backupmodulator Active
126
Prime Modulator Active
126
Demodulator Configuration Commands/Responses
126
Prime Demodulator Active
126
Backup Demodulator Active
127
Prime Demodulator Transponder
127
Modem Configuration Commands/Responses
127
Prime Modem Address
127
Backup Modem Address
128
Backup Modem Interface Type
128
Prime Modem Interface Type
128
Modem Online Delay
129
Modem Priority
129
Status Commands/Responses
129
A.3.3.5 Modem Priority
129
Configuration Status
129
Prime Modulator Configuration Status
129
Backup Demodulator Configuration Status
130
Backup Modulator Configuration Status
130
Prime Demodulator Configuration Status
130
A.3.4.2 Modulator Status
131
Demodulator Status
131
Modulator Status
131
Prime Modem Fault Status
131
Backup Modem Fault Status
132
Equipment Type
132
Firmware Version Status
132
Operational Commands
132
Time of Day
132
A.3.5.2 Date
133
Date
133
Mode Command
133
Set Backup Modem Online/Offline
133
Load All Active Modems Configurations
134
Load Modem Configuration(S
134
Load Prime Modem Configuration
134
Load Backup Modem Configuration
135
Verify All Active Modems Configurations
135
Verify Modem Configuration(S
135
Demodulator Operational Faults Status
136
Modulator Operational Faults Status
136
Operational Status Commands (Faults
136
Verify Backup Modem Configuration
136
Verify Prime Modem Configuration
136
M:N Switch Fault Status Summary
137
Missing Parameter Faults
137
Bulk Consolidated Status Faults
138
Downlink Transponder Option
143
Appendix B. Remote Control Operation: Independent Mod/Demod
145
General
145
Message Structure
145
B.1 General
145
B.2.1 Start Character
146
Device Address
146
Start Character
146
B.2.3 Command/Responses
147
Command/Responses
147
End Character
147
Configuration Commands/Responses
148
Modulator Configuration Commands/Responses
148
Prime Modulator Active
148
Prime Modulator Online Delay
148
Prime Modulator Priority
148
Backup Modulator Active
149
Demodulator Configuration Commands/Responses
149
Prime Demodulator Active
149
Prime Demodulator Priority
149
Backup Demodulator Active
150
Prime Demodulator Online Delay
150
Prime Demodulator Transponder
150
Modem Configuration Commands/Responses
151
Backup Modem Address
151
Prime Modem Address
151
Prime Modem Interface Type
151
Backup Modem Interface Type
152
Status Commands/Responses
152
Backup Modulator Configuration Status
152
Configuration Status
152
Prime Modulator Configuration Status
152
Backup Demodulator Configuration Status
154
Modulator Status
154
Prime Demodulator Configuration Status
154
B.3.4.3 Demodulator Status
155
Backup Modem Fault Status
155
Demodulator Status
155
Firmware Version Status
155
Prime Modem Fault Status
155
Equipment Type
156
Operational Commands
156
B.3.4.7 Equipment Type
156
Date
156
Time of Day
156
B.3.5.3 Mode Command
157
Mode Command
157
Set Backup Demodulator Online/Offline
157
Set Backup Modulator Online/Offline
157
Load All Active Modems Configurations
158
Load Modem Configuration(S
158
Load Prime Modem Configuration
158
Load Backup Modem Configuration
159
Verify All Active Modems Configurations
159
Verify Modem Configuration(S
159
Demodulator Operational Faults Status
160
Modulator Operational Faults Status
160
Operational Status Commands (Faults
160
Verify Backup Modem Configuration
160
Verify Prime Modem Configuration
160
M:N Switch Fault Status Summary
161
Missing Parameter Faults
161
Bulk Consolidated Status Faults
162
Downlink Transponder Option
167
Appendix C. 7 Downlink Option
169
External Connections
170
D/L Switch Input (J7
170
D/L Switch Output (J16
170
C.1 External Connections
170
Downlink Inputs (J8 through J10, J12 through J15
171
Backup Demod (J11
171
Front Panel Operation
171
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