Introduction to Technical Control (Part II)

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Introduction to Technical Control (Part II)
Introduction to Technical Control (Part II)
General
Standards
Conditions
Table of Contents
Table of Contents (cont)
Grading and Certification Instructions
Lesson 1. Interfacing the VF Circuits
Signal Compatibility.
Frequency compatibility
Binding posts.
Learning Event 2: Two-wire and four-wire principles
Figure 1-1. 2W-4W Telephone Communication System, Block Diagram.
Balance.
Learning Event 3: Attenuation and Attenuators
Attenuators and Pads.
Figure 1-3. Schematic Diagram of T- and H-Type Pads.
Table I. Shunt- and Series-Arm Factors for T Pads Between Circuits of Equal Impedance
Figure 1-4. Schematic Diagram of a 12-dB, 600-Ohm Pad In A Circuit.
Energy Level Diagram
Figure 1-6. Energy Level Diagram of an Equal-Level Patching Circuit.
Learning Event 4: Signaling
Learning Event 5: E and M Signaling
Figure 1-7. E&M Signaling Arrangements.
Standard.
Figure 1-8. Signaling Frequency Interface
Pulse-link repeater.
Lesson 1. TM 11-679 Extracts
Introduction
Solving the Formula for DB Gain
The DBM Represents a Reference Level
Figure 4. The use of a reference level
Figure 5. How dbm is used in a telephone system
Figure 6. Use of oscillator and transmission measuring set
Practice Exercise
Practice Exercise (cont)
Practice Exercise (cont)
Practice Exercise (cont)
Practice Exercise (cont)
Practice Exercise (cont)
Answers to Practice Exercise
Answers to Practice Exercise (Cont)
Lesson 1. Interfacing of VF Circuits
Lesson 2. DC Telegraph Circuit Patching
Battery Source.
Characteristics of Circuits.
Learning Event 2: Telegraph Test Signals
Learning Event 3: Patching Telegraph Circuits
Tip-Only Jack.
Learning Event 4: Digital Signals
Learning Event 5: Distortion Analyzer System DAS10
Figure 2-1. Application of Distortion Analyzer System DAS10.
Telegraph Carrier Channel Signal Analysis.
Figure 2-2. Data Transmitter, Model 7413, Front Panel View.
Push buttons.
Push buttons. (Cont)
Figure 2-3. A-Scan, Model 7431, Front Panel View.
Control Indicator
Figure 2-4. Data Analyzer, Model 7422, Front Panel View.
Control Indicator
Control Indicator (Cont)
Control Indicator (cont)
Lesson 2. TM 11-680 Extract
Introduction
Bias Distortion
Delay Distortion
Figure 5. Delay Distortion
End Distortion
Fortuitous Distortion
Characteristic Distortion
Carrier Distortion
Distortion Measurements and Reporting
Importants Points to Remember
Practice Exercise
Practice Exercise (Cont)
Practice Exercise (Cont)
Practice Exercise (Cont)
Practice Exercise (Cont)
Answers to Practice Exercise
Lesson 2. Telegraph Circuit Patching
Lesson 3. Communication Technical Control Center AN/MSQ-73
Interconnecting VF Circuits.
Content compatibility.
Figure 3-1. Communications Technical Control Center AN/MSQ-73.
Figure 3-2. External Signal Connectors.
Figure 3-3. Connecting 26-Pair Cable to a Mounted Socket.
Capabilities.
Figure 3-4. Plan Layout of Communications Technical Control Center AN/MSQ-73.
Figure 3-5. Rear Interior, Right-Side View.
Learning Event 4: Play Layout, Left Side, AN/MSQ-73
Figure 3-6. Front Interior, Right-Side View.
Figure 3-7. Front Interior, Left-side View.
Figure 3-8. Bay 10, Teletypewriter Set AN/FGC-69.
Ringdown Converter Bay.
Figure 3-9. Rear Interior, Left-side View, AN/MSQ-73.
Figure 3-10. VF Circuits in the AN/MSQ-73, Block Diagram.
Figure 3-11. DC Circuits in the AN/MSQ-73, Block Diagram.
Prewired Circuits.
Figure 3-12. Adjustable Attenuator.
VF Jack Arrangements.
Learning Event 6: DC Jack Circuits
Figure 3-14. Principles of DC Jack Circuits in the AN/MSQ-73.
Circuit B.
Figure 3-15. One DC Jack Circuit in the AN/MSQ-73, Schematic Diagram.
Learning Event 7: Isolation relays
Figure 3-16. Isolation Relay Chassis, Front Panel View.
Practice Exercise
Practice Exercise (Cont)
Practice Exercise (Cont)
Answers to Practice Exercise
Lesson 3. Communications Technical Control Center AN/MSQ-73
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Introduction to Technical Control (Part II)

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