TM-11-5805-688-14-1

• SERVICE AND MAINTENANCE INSTRUCTIONS SERVICE AND MAINTENANCE INSTRUCTIONS
• LIST OF EFFECTIVE PAGES
• SERVICE AND MAINTENANCE INSTRUCTIONS SERVICE AND MAINTENANCE INSTRUCTIONS
• LIST OF EFFECTIVE PAGES
• LIST OF EFFECTIVE PAGES
• TABLE OF CONTENTS
• TABLE OF CONTENTS (CONT)
• TABLE OF CONTENTS (CONT)
• TABLE OF CONTENTS (CONT)
• TABLE OF CONTENTS (CONT)
• TABLE OF CONTENTS (CONT)
• TABLE OF CONTENTS (CONT)
• LIST OF ILLUSTRATIONS
• LIST OF ILLUSTRATIONS (Continued)
• LIST OF ILLUSTRATIONS (Continued)
• LIST OF TABLES
• INTRODUCTION
• CHAPTER 1 GENERAL INFORMATION
• Figure 1-1. AN/GSC-24 (V) Multiplexer SET
• LEADING PARTICULARS.
• Figure 1-2. Printed Circuit Card - Location View
• Figure 1-4. Power Supply - Physical View
• Table 1-1. Leading Particulars
• Table 1-3. Electrical Capabilities and Limitations
• Table 1-3. Electrical Capabilities and Limitations
• Table 1-3. Electrical Capabilities and Limitations (Cont)
• Table 1-4. Equipment Supplied
• Table 1-4. Equipment Supplied (Cont)
• Table 1-4. Equipment Supplied (Cont)
• Table 1-4. Equipment Supplied (Cont)
• Table 1-6. Special Tools List
• Table 1-6. Special Tools List (Cont)
• Table 1-7. Test Equipment List
• CHAPTER 2 INSTALLATION
• Table 2-1. Installation Data
• SECTION II INSTALLATION PROCEDURES
• INSTALLATION PROCEDURES.
• INSTALLATION PROCEDURES.-CONT.
• CHAPTER 3 PREPARATION FOR USE
• Figure 3-1. Typical Duplex Configurations
• CHANNEL AND PORT RELATIONSHIPS.
• Figure 3-2. Typical Simplex Configuration
• CHANNEL RATES AND FORMS
• DIGITAL DATA WITHOUT ASSOCIATED TIMING.
• VOICE DATA.
• Table 3-1. Multiplexer Set Channel Card Options
• Table 3-2. Configuration Worksheet Data
• Figure 3-4. Example of Multiplexer Set Configuration
• Figure 3-5. Example of Sheet 1 of Configuration Worksheets
• MULTIPLEXER COMMON ELECTRONICS
• Table 3-3. Coarse Rate Conversion Strapping Data
• Table 3-3. Coarse Rate Conversion Strapping Data (Cont)
• Table 3-3. Coarse Rate Conversion Strapping Data (Cont)
• Table 3-3. Coarse Rate Conversion Strapping Data (Cont)
• Table 3-3. Coarse Rate Conversion Strapping Data (Cont)
• Table 3-3. Coarse Rate Conversion Strapping Data (Cont)
• DEMULTIPLEXER CHANNEL ELECTRONICS
• Figure 3-6. Example of Sheet 2 of Configuration Worksheets
• Figure 3-7. Example of Sheet 3 of Configuration Worksheets
• DEMULTIPLEXER COMMON ELECTRONICS.
• Figure 3-8. Example of Sheet 4 of Configuration Worksheets
• SUPPLEMENTAL CONFIGURATION CONSIDERATIONS.
• Figure 3-9. Port Rate Impact Upon Input/Output Efficiency
• Figure 3-10. Input Rate Mix Impact Upon Input/Output Efficiency
• VOICE PROCESSING GROUND RULES.
• SPECIAL DEMULTIPLEXER OUTPUT SMOOTHING OPTIONS.
• SECTION III EQUIPMENT PREPARATION PROCEDURES
• Figure 3-11. Configuration Worksheets (sheet 1 of 4)
• Figure 3-11. Configuration Worksheets (sheet 2 of 4)
• Figure 3-11. Configuration Worksheets (sheet 3 of 4)
• Figure 3-11. Configuration Worksheets (sheet 4 of 4)
• Figure 3-12. RCB Card - Switch Location Diagram
• TE/TR CARD (P/N 61864060)
• Figure 3-13. TE/TR Card - Switch Location Diagram
• MULTIPLEXER COMMON ELECTRONICS SETUP PROCEDURES.
• Figure 3-14. RT Card - Switch Location Diagram
• Table 3-4. Reference Timer Rate Selection Data
• Table 3-5. Reference Timer Setup Data
• SEQ CARD (P/N 61864040)
• Figure 3-15. OEG Card - Switch Location Diagram
• Figure 3-16. Seq Card - Switch Location Diagram
• Table 3-6. Seq Card Ports-in-Use Switch Settings
• DEMULTIPLEXER CHANNEL ELECTRONICS SETUP PROCEDURES.
• Figure 3-17. SB Card - Switch Location Diagram
• DEMULTIPLEXER CHANNEL ELECTRONICS SETUP PROCEDURES-CONT.
• NBSB CARD (P/N 61864160)
• Figure 3-18. NBSB Card - Switch Location Diagram
• TD CARD (P/N 61864130)
• Figure 3-19. TD Card - Switch Location Diagram
• DEMULTIPLEXER COMMON ELECTRONICS SETUP PROCEDURES.
• Figure 3-20. FS Card - Switch Location Diagram
• Figure 3-21.ERD Card - Switch Location Diagram
• Figure 3-22. Display Card - Switch Location Diagram
• REMOTE ALARM OPTIONS
• Figure 3-23. Front Panel Printed Circuit Card - Jumper Location Diagram
• SECTION IV PREPARATION FOR RESHIPMENT
• PACKING PROCEDURES
• CHAPTER 4 OPERATION
• Table 4-1. Multiplexer Set Controls and Indicators
• Table 4-1. Multiplexer Set Controls and Indicators (Cont)
• LAMP TEST PROCEDURES.
• CHAPTER 5 THEORY OF OPERATION
• SECTION I MESSAGE FORMAT AND BASIC EQUIPMENT CONCEPTS
• Figure 5-1. Output Message Format
• Figure 5-2. Overhead Message Format
• MULTIPLEXER BASIC CONCEPTS
• EQUIPMENT APPLICATION
• Figure 5-3. Typical Multiplexer Application
• PROCESSING OF ASYNCHRONOUS INPUTS
• Figure 5-4. Channel Data Asynchronous-to-Synchronous Conversion Functional Block Diagram
• PROCESSING OF ASYNCHRONOUS INPUTS-CONT.
• CHANNEL DATA GATING FUNCTION.
• Figure 5-5. Example of Homogeneous Sampling Sequence
• Figure 5-6. Gated Clocks - Waveform Diagram
• OVERHEAD SERVICE FUNCTION.
• Figure 5-7. Multiplexer Overhead Service - Simplified Block Diagram
• DEMULTIPLEXER BASIC CONCEPTS
• Figure 5-8. Frame Synchronization Function - Simplified Block Diagram
• SMOOTHING FUNCTION.
• Figure 5-9. Smoothing Function - Simplified Block Diagram
• SECTION II MULTIPLEXER, DEMULTIPLEXER, AND OVERALL DIAGNOSTICS FUNCTIONAL BLOCK DIAGRAM DISCUSSIONS
• TRANSITION ENCODER/TIMING RECOVERY (TE/TR) CARD
• VOICE ENCODER (VE) CARD
• SEQUENCER (SEQ) CARD
• GATED CLOCK/DATA MUX (GC/DM) CARD
• REFERENCE TIMER (RT) CARD
• FRAME SYNC (FS) CARD
• SEQUENCER (SEQ) CARD
• GATED CLOCK/DATA MUX (GC/DM) CARD
• ERROR RATE DETECTOR (ERD) CARD
• TRANSITION DECODER (TD) CARD
• VOICE DECODER (VD) CARD
• SYSTEM BLOCK DIAGRAM DISCUSSION
• Figure 5-10. Diagnostic Overall System - Block Diagram (sheet 1 of 2)
• Figure 5-10. Diagnostic Overall System - Block Diagram (sheet 2 of 2)
• FRONT PANEL BLOCK DIAGRAM DISCUSSION
• FRONT PANEL BLOCK DIAGRAM DISCUSSION-CONT.
• FRONT PANEL BLOCK DIAGRAM DISCUSSION-CONT.
• SECTION III MULTIPLEXER CARDS FUNCTIONAL OPERATION
• Figure 5-11. RCB Card - Simplified Block Diagram
• Simplified Block Diagram Discussion
• Figure 5-12. RCB Card-Block Diagram
• Input-Output  Data  Buffer  Function
• Input-Output  Data  Buffer  Function-CONT.
• Figure 5-13. RCB Card, Coarse Rate Conversion Circuits - Block Diagram
• Figure 5-14. RCB Card, Diagnostic Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• Input-Output Data Rate Compare Function
• Input-Output Data Rate Compare Function-CONT.
• Diagnostic Function
• TRANSITION ENCODER/TIMING RECOVERY (TE/TR) CARD
• Figure 5-15. TE/TR Card - Simplified Block Diagram
• Figure 5-16. TE/TR Card, Transition Encoder Circuits - Block Diagram
• Timing Recovery Function
• Figure 5-17. TE/TR Card, Timing Recovery Circuits - Block Diagram
• Figure 5-18. TE/TR Card, Rate Conversion Buffer Circuits - Block Diagram
• Input-Output Data Rate Compare Function
• Diagnostic Function
• Figure 5-19. TE/TR Card, Diagnostic Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION.
• Rate Conversion Buffer (RCB) Function.
• VOICE ENCODER (VE) CARD
• Figure 5-20. VE Card - Block Diagram
• BLOCK DIAGRAM DISCUSSION
• Figure 5-21. VE Card - Waveform Diagram
• DETAILED CIRCUIT DISCUSSION.
• SEQUENCER (SEQ) CARD
• Write Function
• Table 5-2. Typical Channel Address Input to R.A.M.
• Table 5-2. Typical Channel Address Input to R.A.M. (Cont.)
• Table 5-3. Homogeneous Port Addresses to R.A.M.
• Table 5-3. Homogeneous Port Addresses to R.A.M. (Cont)
• Diagnostic Function
• Table 5-4. Truncated Port Addresses to R.A.M. in 22 Used Ports Configuration
• Table 5-4. Truncated Port Addresses to R.A.M. in 22 Used Ports Configuration
• DETAILED CIRCUIT DISCUSSION
• DETAILED CIRCUIT DISCUSSION-CONT.
• Diagnostic Circuits
• Diagnostic Circuits-CONT.
• GATED CLOCK/DATA MUX (GC/DM) CARD.
• Figure 5-22. GC/DM Card, Format Generation Circuits - Block Diagram
• Figure 5-23. GC/DM Card, Gated Clock Generation Circuits - Block Diagram
• Gated Clock Generation Function
• Data Multiplexer Function
• Figure 5-24. GC/DM Card, Data Multiplexer Circuits-Block Diagram
• Diagnostic Function
• Figure 5-25. GC/DM Card, Composite Error Detection Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• Figure 5-26. GC/DM Card, Gated Clock Generation Diagnostic Circuits - Block Diagram
• Table 5-5. List of ROM Outputs (Stuff Codes)
• Gated Clock Generation Function
• Data Multiplexer Function
• Diagnostic Function
• OVERHEAD ENABLE GENERATOR OEG CARD
• Figure 5-27. OEG Card - Block Diagram
• BLOCK DIAGRAM DISCUSSION
• DETAILED CIRCUIT DISCUSSION
• DETAILED CIRCUIT DISCUSSION-CONT.
• REFERENCE TIMER (RT) CARD
• Figure 5-28. RT Card, Data and Timing Circuits - Block Diagram
• Figure 5-29. RT Card, Transition Encoder Timing Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION.
• Data Retiming Circuits
• SECTION IV DEMULTIPLEXER CARDS FUNCTIONAL OPERATION
• BLOCK DIAGRAM DISCUSSION
• APLL Circuit
• Figure 5-31. APLL Circuit Stuffing - Waveform Diagram
• Figure 5-32. SB Card, Coarse Rate Conversion Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• APLL Circuit
• Coarse Rate Conversion Circuits
• Diagnostic Circuits
• DETAILED CIRCUIT DISCUSSION
• BLOCK DIAGRAM DISCUSSION
• Figure 5-33. TD Card, 3-Bit Transition Code - Waveform Diagram
• DETAILED CIRCUIT DISCUSSION
• Figure 5-34. TD Card, Pulse Transition Code - Waveform Diagram
• Diagnostic Circuits
• BLOCK DIAGRAM DISCUSSION.
• Figure 5-35. VD Card - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• SEQUENCER (SEQ) CARD
• OVERHEAD ENABLE GENERATOR (OEG) CARD
• BLOCK DIAGRAM DISCUSSION.
• Overall FS Card Discussion
• Parallel Sync Acquisition Circuits Block
• Figure 5-36. FS Card, Parallel Sync Acquisition Circuits - Block Diagram
• VLSR Concept Discussion
• VLSR Concept Discussion-CONT.
• Figure 5-37. FS Card, Primary and Odd Bit Shift Registers - Block Diagram
• VLSR Concept Discussion-CONT.
• Figure 5-38. FS Card, Data Selector Outputs - Waveform Diagram
• VLSR Block Diagram Discussion
• Serial Sync Acquisition and Sync Maintenance Circuits Block Diagram Discussion
• Diagnostic Block Diagram Discussion
• Figure 5-39. FS Card, Diagnostic Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• DETAILED CIRCUIT DISCUSSION-CONT.
• DETAILED CIRCUIT DISCUSSION-CONT.
• Once signal DSYNC
• Once signal DSYNC-CONT.
• Diagnostic Circuits
• ERROR RATE DETECTOR AND REMOTE ALARM (ERD) CARD
• Figure 5-40. ERD Card, Minor Frame Generation Circuits - Block Diagram
• Error Rate Detector (ERD) Circuits
• Error Rate Detector (ERD) Circuits-CONT.
• Error Reset and Self-Test Circuits
• Figure 5-41. ERD Card, Error Reset, Self-Test, and Remote Alarms Relay Circuits - Block Diagram
• DETAILED CIRCUIT DISCUSSION
• Figure 5-42. ERD Card, Minor Frame Generation Diagnostic Circuits - Block Diagram
• Error Rate Detector (ERD) Circuits
• Diagnostic  Circuits
• SECTION V DISPLAY CARD AND FRONT PANEL FUNCTIONAL OPERATION
• Figure 5-43. Display Card, Primary Diagnostics - Block Diagram
• Table 5-6.Diagnostic Display Priority
• Table 5-6. Diagnostic Display Priority (Cont)
• FUNCTIONAL DISCUSSION
• SELF-TEST BLOCK DIAGRAM DISCUSSION
• SELF-TEST BLOCK DIAGRAM DISCUSSION-CONT.
• Figure 5-44. Display Card, Secondary Diagnostics - Block Diagram
• DETAILED FUNCTIONAL CIRCUIT DISCUSSION
• DETAILED FUNCTIONAL CIRCUIT DISCUSSION-CONT.
• Table 5-7. Lamp Display Decoder Logic Outputs to Front Panel
• DETAILED FUNCTIONAL CIRCUIT DISCUSSION-CONT.
• DETAILED SELF-TEST CIRCUIT DISCUSSION
• DETAILED SELF-TEST CIRCUIT DISCUSSION-CONT.
• FRONT PANEL DETAILED CIRCUIT DISCUSSION
• SECTION VI AC POWER DISTRIBUTION AND POWER SUPPLY ASSEMBLY FUNCTIONAL OPERATION
• Figure 5-45. AC Power Distribution - Block Diagram
• POWER SUPPLY
• Figure 5-46. 12-volt Regulator Card, Clock Generator and Over/Under Voltage Detector Circuits - Block Diagram
• Figure 5-47. 12-Volt Regulator Card, 12-Volt Regulator Circuit - Block Diagram
• Figure 5-48. 12-Volt Regulator Circuit-Waveform Diagram
• DETAILED CIRCUIT DISCUSSION
• DETAILED CIRCUIT DISCUSSION-CONT.
• Figure 5-49. A Clock and B Clock Waveform Diagram
• DETAILED CIRCUIT DISCUSSION-CONT.
• Figure 5-50. +5- Volt Drive Pulses - Waveform Diagram
• CHAPTER 6 MAINTENANCE
• Table 6-1. Organizational/Intermediate Level Support Equipment (Equivalent equipment is authorized.)
• Table 6-1. Organizational/Intermediate, Level Support Equipment (Cont) (Equivalent equipment is authorized.)
• SELF-TEST MODE
• TROUBLESHOOTING
• Table 6-2. Troubleshooting Symptoms
• Table 6-2. Troubleshooting Symptoms (Cont)
• Table 6-2. Troubleshooting Symptoms (Cont)
• Table 6-3. Signal Name and Test Point List
• Table 6-3. Signal Name and Test Point List
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-3. Signal Name and Test Point List (Cont)
• Table 6-4. Special Purpose Switch Data
• DEMULTIPLEXER
• Figure 6-1. Typical integrated Circuit Pin Arrangement - Top View
• REPAIR AND REPLACEMENT
• REPAIR AND REPLACEMENT-CONT.
• Figure 6-2. Multiplexer Set Physical Arrangement
• Figure 6-3. Power Supply - Top View
• FRONT PANEL INDICATOR LAMP
• Figure 6-4. LED Element Replacement
• BACKPLANE WIRING
• BACKPLANE WIRING-CONT.
• Figure 6-5. Typical Backplane Connector Pin Location Arrangement
• Figure 6-6. Backplane Wire Replacement Diagram
• Figure 6-7. Wire Wrapping Tools and Simplified Wire Installation Procedures
• PREVENTIVE MAINTENANCE.
• RT CARD CALIBRATION
• RT CARD CALIBRATION-CONT.
• Figure 6-8. RT Card - Test Point and Alignment Location Diagram
• COOLING AIR FILTER CLEANING
• PERFORMANCE STANDARDS
• Figure 6-9. Typical Performance Test Setup Diagram
• Figure 6-10. Test Setup Cable Diagram
• BIT COUNT INTEGRITY TEST
• BIT COUNT INTEGRITY TEST-CONT.
• SECTION II SPECIAL MAINTENANCE
• Table 6-6. Depot/Special Level Support Equipment (Equivalent equipment is authorized)
• Table 6-6. Depot/Special Level Support Equipment (Cont)
• Table 6-6. Depot/Special Level Support Equipment (Cont)
• CHASSIS REPAIR.
• Figure 6-14. Backplane Connector Repair Diagram
• Figure 6-15. Captive Screw Removal Diagram
• Figure 6-16. Access Cover Captive Screw Insertion Diagram
• STAKE NUT REPLACEMENT
• Figure 6-21. Stake Nut Removal Diagram
• Figure 6-22. Stake Nut Insertion Diagram
• BACKPLANE CONNECTOR PANEL REMOVAL AND INSTALLATION
• Figure 6-25. Card File - Mounting Hardware Location Diagram
• SECTION III PERFORMANCE TEST CHECKS
• SECTION III PERFORMANCE TEST CHECKS-CONT.
• SECTION III PERFORMANCE TEST CHECKS-CONT.
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• CROSS-REFERENCE INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• ALPHABETICAL INDEX
• Figure FO-1. Overall Multiplexer System - Block Diagram
• Figure FO-2. Overall Demultiplexer System - Block Diagram
• Figure FO-3. Seq Card - Block Diagram
• Figure FO-4. SB Card - Block Diagram
• Figure FO-5. TD Card - Block Diagram
• Figure FO-6. Overall FS Card - Simplified Block Diagram
• Figure FO-7. FS Card, Primary Shift Register Simplified Block Diagram
• Figure FO-8. FS Card, VLSR Circuits Block Diagram
• Figure FO-9. FS Card, Serial Sync Acquisition and Sync Maintenance Circuits - Block Diagram
• Figure FO-10. ERD Card, Error Rate Detector Circuits - Block Diagram
• Figure FO-11. Overall Power Supply - Block Diagram
• TM-11-5805-688-14-1
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