User Manuals: Comtech EF Data SMS-758 Protection Switch

Manuals and User Guides for Comtech EF Data SMS-758 Protection Switch. We have 1 Comtech EF Data SMS-758 Protection Switch 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 MB

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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User Manuals: Comtech EF Data SMS-758 Protection Switch

Comtech EF Data SMS-758 Installation And Operation Manual (172 pages)

Table of Contents

Chapter 1. Introduction

Scope

Purpose and Function

Description

Performance Specification

Chapter 2. Installation

Unpacking

System Installation

System Requirements

External Connections

Chapter 3. Operation

Front Panel Description

Switch Setup

Chapter 4. Theory of Operation

Monitor and Control

Modem Control Interface Specification

Relay-Remote Interface Specification

Fault Interface Specification

Online Status Specification

Interface Switches

Address Decoder/Driver

IF Switch Driver

IF Switch

Online Telemetry

Power Supply

Chapter 5. Maintenance

Fault Descriptions

Fault Isolation

Module Replacement

Repacking for Shipment

Appendix A. Remote Control Operation: Modem Switch

General

Message Structure

Configuration Commands/Responses

Appendix B. Remote Control Operation: Independent Mod/Demod

General

Message Structure

Configuration Commands/Responses

Appendix C. 7 Downlink Option

External Connections

Front Panel Operation

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