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Field Manual |
FM 24-27 |
FM 24-27 |
TACTICAL AUTOMATIC CIRCUIT SWITCHING AN/TTC-39 |
Table of Contents
Preface
Chapter 1 - AN/TTC-39 Circuit Switch
1-1. Mission and Functions
1-2. Communications-Electronics Management System
1-3. Information Flow
Chapter 2 - Equipment Description
2-1. AN/TTC-39( )(V)
2-2. Overview
2-3. Hardware
2-4. Communications Security Group
2-5. Software
2-6. AN/TTC-39A
Chapter 3 - Planning Factors
Section I - Features
3-1. Loop and Trunk Capacities
3-2. Digital Operating Rates
3-3. Traffic Handling Capacity
3-4. Secure and Nonsecure Operation
3-5. Timing of Switches
3-6. Numbering Plan Format
3-7. Services and Classmarks
3-8. Essential User Bypass
3-9. Signaling and Supervision
3-10. Magnetic Tape
3-11. Satellite Connectivity
3-12. Operator/Machine Interface
3-13. AN/TTC-39A Capabilities and Functions
Section II - Control and Diagnostics
3-14. Switch Control
3-15. Diagnostics
Section III - Interface
3-16. Connections to Subscribers
3-17. Trunk and Telephone Interface Equipment
3-18. Switch, Trunk, and Telephone Line Interface Table
3-19. Communications Security
Section IV - Operational Considerations
3-20. Operations Under Emergency Conditions
3-21. Operation Under Extreme Conditions
3-22. Reliability and Maintainability
3-23. Survivability and Vulnerability
3-24. Physical Security
3-25. Siting
Chapter 4 - Application
4-1. Operations of the Switch
4-2. Traffic Switching and Processing
4-3. Initialization Process
4-4. Numbering Plan
4-5. Technical Management
4-6. Data Entry
4-7. Routing
4-8. AN/TTC-39A Application
Chapter 5 - Employment
5-1. Use of the Switch in a Communications System
5-2. General Concept of Operations
5-3. Nodal Composition
5-4. Traffic Engineering
5-5. Coordination and Information Flow
5-6. System Planning and Network Development
5-7. Displacement
5-8. Reconfiguration and Restoral
5-9. Interoperability
Appendix A - Tables
Appendix B - Planning Example
Appendix C - Reproducible Forms
Glossary
References
Blank Forms
Authorization Letter
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