Module I: Basic Electrical Principles
• Metric System terms and relationships
• Basic AC and DC concepts
• Voltage, Current and Resistance definitions
• Ohm’s Law
• Calculations using Ohm’s Law
• Series and parallel circuits as they apply to the local telephone copper loop.
• Capacitance, Inductance and Impedance as they apply to the telephone copper loop.
• Power calculations and telephone circuit applications.
• Noise definition and application in the telephone loop.
Module II: Basic Telephony
• Voice Frequency definition and C-Message weighting
• Telephone set operation and customer requirements.
• 48VDC voltage and ringing voltage applies to the Tip and Ring loop.
• Outside Plant aerial and buried plant components.
• Copper cable transmission characteristics and signal loss.
• Outside plant power influence and noise.
• MDF (Main Distributing Frame) terminal blocks and protection (i.e.: gas tubes).
• Relay Rack layout, counting and shelf assignments.
• Cable color code identification.
• Safety and security related to Central Offices and company vehicles.
Module III: Central Office Power
• Commercial AC Power components and characteristics including single- and 3-phase.
• Multi-Grounded Neutral application.
• Central Office Main AC disconnect.
• AC Surge Arrestor application.
• Standby Generator and Transfer Panel operation.
• Rectifier operations.
• Central Office battery description and application.
• DC powerboard, and fuse and breaker operation.
• DC power distribution, fuse panels and breaker panels.
• DC Power cable ampacity ratings and load limitations.
Module IV: Central Office Grounding and Protection
• Grounding theory and practical applications.
• Master Ground Bar connections
• Ground Window Bar connections.
• AC MGN ground connection.
• Central Office ground grid connections.
• Radio Tower ground connections.
Module V: Basic Digital Concepts, DS0 - DS3
• Numbering systems currently used in telecommunications transmission.
• Channel Bank operation and Analog-to-Digital conversion.
• DS1 description and applications (T1 copper span lines, HDSL, DSX-1 crossconnects and Central Office DS1 cabling.
• DS1 line coding (AMI or B8ZS) and signaling format (SD or ESF).
• DS3 description and applications.
• DS3 MUX operation.
Module VI: Digital Switch Basics
• Basic Digital Switch hierarchy and operation.
• Digital Switch line and trunk interfaces.
• Base Unit and Remote operation and links.
• SS7 network components and operation including A-links from Digital Switches.
Module VII: Special Circuits
• DS0 description and applications (POTS, Analog Data, Digital Data including 2.4K-to-56K, 64K, Fractional-T1, ISDN with 2B1Q line coding, Frame Relay and ATM applications.
• T1 and T3 HiCap circuits and applications.
• DSL applications.
• Special Circuit number description.
• Special Circuit test & acceptance requirements.
Module VIII: Fiber Optics Basics
• Fiber Optic technology theory and application to the telecommunications network.
• LED and LASER operation and applications.
• Single-Mode and Multi-Mode applications.
• Fiber cable operation and applications.
• Fiber Optic MUX, Terminal and DCS applications.
• SONET theory and applications.
• OC-3, OC-12 and OC-48 terminal equipment.
• Fiber Optic Ring technology and application.
• DWDM applications.
Module IX: Network Synchronization
• Central Office digital timing source (BITS Clock) application.
• Stratum-1, -2 and -3 clock reference applications.
• Central Office equipment timing reference requirements.