Introduction to Technical Control Part I
Lesson 1. Patching Panels
Learning Event 2: Technical Control Functions
Substituting Equipment
Figure 1-1. Relationship Between Technical Control Facility and Patch and Test Facilities
Learning Event 3: Maintenance Responsibilities
Learning Event 4: Patching Arrangements
Voice-Frequency Primary Patch Bay.
Voice-Frequency Patching Module.
Figure 1-4. Front Panel of Typical VF Primary Bay Patching Module
Voice-Frequency Patching Module. (Cont)
Figure 1-5. Jack Designations in Circuit Diagrams of Patching Modules
Figure 1-6. Lead Designations for LINE-EQ Jack Set
Interbay Trunk Module.
Figure 1-8. Typical Interbay Trunking Arrangement for VF Primary Patch Bays
Figure 1-9. Typical Interbay Trunk Modules Front Panels
Miscellaneous Patching Module.
Miscellaneous Patching Module. (Cont)
Figure 1-11. Typical VF Patch Bay Miscellaneous Patching Module
Figure 1-12. Miscellaneous Patching Module - Multiple Jacks and Speaker Jacks Wiring Diagram
Other VF Primary Patch Bay Components
Figure 1-13. Typical Front Elevations of VF Primary Patch Bays
Equal Level Patch Bay.
Miscellaneous Patching Modules.
Figure 1-14. Typical Miscellaneous Patching Module Front Panel with 6-Way/4-Wire Bridges Appearances
Learning Event 5: DC Circuit Area
Interbay Trunk Modules.
Figure 1-16. Low-Speed Digital Circuit Patching Arrangement
Figure 1-17. Front Panel of a Typical DC Primary Patch Bay Send or Receive Patching Module
Figure 1-18. Jack Wiring for Typical SEND Patching Module in DC Primary Patch Bay
Figure 1-19. Jack Wiring for Typical Receive Patching Module in DC Primary Patch Bay
Figure 1-20. Front Panel for a Typical Interbay Trunk Module
Figure 1-21. Wiring for Typical Interbay Trunk Module
DC Circuit Patch Bay.
Interbay Trunk and Miscellaneous Patching Modules.
Figure 1-22. Front panel of a Typical Send or Receive Patching Module for DC Circuit Patching Bay
Figure 1-23. Jack Wiring for Typical Receive Patching Module in DC Circuit Patch Bay (Low-Level)
Figure 1-24. Jack Wiring for Typical Send Patching Module in DC Circuit Patch Bay (Low-Level)
Circuit Conditioning Bay.
Group-Patch Panel.
Learning Event 6: Location and Configurations
Learning Event 7: Test Instruments Used in Technical Control Facilities
Most-Often-Used Instruments.
Neutral circuit (high level).
VU indicator.
Other test equipment.
Cable fault locator.
Lesson 1. CCTM 105-506 Extracts
Section I. General
Figure 3. Typical jack strip assembly
Figure 4. A patch panel consisting of several bays
General Organization of a Patch Board
Figure 8. How a patch cord works
Section II. WECO Concept
The WECO RF Patch bay
Patching Procedures for RF Patch Bay
Figure 14. Basic patching procedures
The WECO VF Patch Bay
Patching Procedures for VF Patch Bay - ss032850064
Telephone Mux Failure
Line Circuit in Trouble
The WECO DC Patch Bay
Patching Procedures for the DC Patch Bay
Teletypewriter Malfunction - Full Duplex Circuit
Section 3. Concept
Figure 28. Group panel jack fields
Figure 31. Typical mux system, receive circuit
Channel Modulator/Demodulator Tone Package Failure
Group Demodulator Failure
Supergroup Demodulator Failure
Receive Hybrid Failure
DC Patch Bay
The Primary Patch Panel
Patching Procedures for VF Patch Bay - ss032850079
Figure 50. Primary panel jack strip
Figure 51. Resoring circuit when a circuit conditioning or signaling device malfunctions
Figure 52. Resoring circuit when inband signal generator or one of the attenuator pads malfunctions
Channel Circuit Malfunction
Figure 54. DC panel jacks
Telegraph Mux Channel Failure
Figure 58. Replacing a malfunctioning typewriter, half duplex
Practice Exercise - ss032850087
Practice Exercise (Cont) - ss032850088
Practice Exercise (Cont) - ss032850089
Practice Exercise (Cont) - ss032850090
Practice Exercise (Cont) - ss032850091
Practice Exercise (Cont) - ss032850092
Practice Exercise (Cont) - ss032850093
Answers to Practice Exercise - ss032850094
Answers to Practice Exercise (Cont) - ss032850095
Lasson 1. Patching panels
Lesson 2. Line Termination and Distibution Frames
Figure 2-1. Vertical Side of CDF
Figure 2-2. Vertical Side of CDF
Learning Event 2: Main-frame Constructions
Figure 2-3. Main Distributing Frame, Components
Protectors.
Figure 2-5. Line Protector and Carbon Blocks
Differences in Types of Main Frames.
Figure 2-6. Group of Line Protectors
Cable Characteristics.
Color Coding.
Color Combinations
Learning Event 4: Wiring Records
Attachment to Distributing Frame.
Cable Forms.
Figure 2-7. Single-Leg Cable Form
Figure 2-8. Multileg Cable Form
Figure 2-9. Typical Installation of Single-Leg Cable Form on Vertical Frame
Figure 2-10. Typical Installation of Multileg Cable Form on Horizontal Frame
Figure 2-11. Terminating Skinners on Lugs
Identification.
Cross-Connect Records.
Figure 2-12. Distributing Frame Circuit, Simplified Diagram
Figure 2-13. Rear View of Patching Bays
Practice Exercise - ss032850121
Practice Exercise (Cont) - ss032850122
Practice Exercise (Cont) - ss032850123
Practice Exercise (Cont) - ss032850124
Practice Exercise (Cont) - ss032850125
Answers to Practice Exercise - ss032850126
Lesson 2. Line Termination and Distribution Frames
Lesson 1. Patching Panels
Learning Event 2: Technical Control Functions
Substituting Equipment
Figure 1-1. Relationship Between Technical Control Facility and Patch and Test Facilities
Learning Event 3: Maintenance Responsibilities
Learning Event 4: Patching Arrangements
Voice-Frequency Primary Patch Bay.
Voice-Frequency Patching Module.
Figure 1-4. Front Panel of Typical VF Primary Bay Patching Module
Voice-Frequency Patching Module. (Cont)
Figure 1-5. Jack Designations in Circuit Diagrams of Patching Modules
Figure 1-6. Lead Designations for LINE-EQ Jack Set
Interbay Trunk Module.
Figure 1-8. Typical Interbay Trunking Arrangement for VF Primary Patch Bays
Figure 1-9. Typical Interbay Trunk Modules Front Panels
Miscellaneous Patching Module.
Miscellaneous Patching Module. (Cont)
Figure 1-11. Typical VF Patch Bay Miscellaneous Patching Module
Figure 1-12. Miscellaneous Patching Module - Multiple Jacks and Speaker Jacks Wiring Diagram
Other VF Primary Patch Bay Components
Figure 1-13. Typical Front Elevations of VF Primary Patch Bays
Equal Level Patch Bay.
Miscellaneous Patching Modules.
Figure 1-14. Typical Miscellaneous Patching Module Front Panel with 6-Way/4-Wire Bridges Appearances
Learning Event 5: DC Circuit Area
Interbay Trunk Modules.
Figure 1-16. Low-Speed Digital Circuit Patching Arrangement
Figure 1-17. Front Panel of a Typical DC Primary Patch Bay Send or Receive Patching Module
Figure 1-18. Jack Wiring for Typical SEND Patching Module in DC Primary Patch Bay
Figure 1-19. Jack Wiring for Typical Receive Patching Module in DC Primary Patch Bay
Figure 1-20. Front Panel for a Typical Interbay Trunk Module
Figure 1-21. Wiring for Typical Interbay Trunk Module
DC Circuit Patch Bay.
Interbay Trunk and Miscellaneous Patching Modules.
Figure 1-22. Front panel of a Typical Send or Receive Patching Module for DC Circuit Patching Bay
Figure 1-23. Jack Wiring for Typical Receive Patching Module in DC Circuit Patch Bay (Low-Level)
Figure 1-24. Jack Wiring for Typical Send Patching Module in DC Circuit Patch Bay (Low-Level)
Circuit Conditioning Bay.
Group-Patch Panel.
Learning Event 6: Location and Configurations
Learning Event 7: Test Instruments Used in Technical Control Facilities
Most-Often-Used Instruments.
Neutral circuit (high level).
VU indicator.
Other test equipment.
Cable fault locator.
Lesson 1. CCTM 105-506 Extracts
Section I. General
Figure 3. Typical jack strip assembly
Figure 4. A patch panel consisting of several bays
General Organization of a Patch Board
Figure 8. How a patch cord works
Section II. WECO Concept
The WECO RF Patch bay
Patching Procedures for RF Patch Bay
Figure 14. Basic patching procedures
The WECO VF Patch Bay
Patching Procedures for VF Patch Bay - ss032850064
Telephone Mux Failure
Line Circuit in Trouble
The WECO DC Patch Bay
Patching Procedures for the DC Patch Bay
Teletypewriter Malfunction - Full Duplex Circuit
Section 3. Concept
Figure 28. Group panel jack fields
Figure 31. Typical mux system, receive circuit
Channel Modulator/Demodulator Tone Package Failure
Group Demodulator Failure
Supergroup Demodulator Failure
Receive Hybrid Failure
DC Patch Bay
The Primary Patch Panel
Patching Procedures for VF Patch Bay - ss032850079
Figure 50. Primary panel jack strip
Figure 51. Resoring circuit when a circuit conditioning or signaling device malfunctions
Figure 52. Resoring circuit when inband signal generator or one of the attenuator pads malfunctions
Channel Circuit Malfunction
Figure 54. DC panel jacks
Telegraph Mux Channel Failure
Figure 58. Replacing a malfunctioning typewriter, half duplex
Practice Exercise - ss032850087
Practice Exercise (Cont) - ss032850088
Practice Exercise (Cont) - ss032850089
Practice Exercise (Cont) - ss032850090
Practice Exercise (Cont) - ss032850091
Practice Exercise (Cont) - ss032850092
Practice Exercise (Cont) - ss032850093
Answers to Practice Exercise - ss032850094
Answers to Practice Exercise (Cont) - ss032850095
Lasson 1. Patching panels
Lesson 2. Line Termination and Distibution Frames
Figure 2-1. Vertical Side of CDF
Figure 2-2. Vertical Side of CDF
Learning Event 2: Main-frame Constructions
Figure 2-3. Main Distributing Frame, Components
Protectors.
Figure 2-5. Line Protector and Carbon Blocks
Differences in Types of Main Frames.
Figure 2-6. Group of Line Protectors
Cable Characteristics.
Color Coding.
Color Combinations
Learning Event 4: Wiring Records
Attachment to Distributing Frame.
Cable Forms.
Figure 2-7. Single-Leg Cable Form
Figure 2-8. Multileg Cable Form
Figure 2-9. Typical Installation of Single-Leg Cable Form on Vertical Frame
Figure 2-10. Typical Installation of Multileg Cable Form on Horizontal Frame
Figure 2-11. Terminating Skinners on Lugs
Identification.
Cross-Connect Records.
Figure 2-12. Distributing Frame Circuit, Simplified Diagram
Figure 2-13. Rear View of Patching Bays
Practice Exercise - ss032850121
Practice Exercise (Cont) - ss032850122
Practice Exercise (Cont) - ss032850123
Practice Exercise (Cont) - ss032850124
Practice Exercise (Cont) - ss032850125
Answers to Practice Exercise - ss032850126
Lesson 2. Line Termination and Distribution Frames
