DEWALT Datacom Professional Reference

CHAPTER 1
COMMUNICATIONS ELECTRONICS
1–1 . . . . BASIC FORMULAS FOR ELECTRICITY
1–6 . . . . UNDERSTANDING DECIBELS
1–7 . . . . DECIBELS VS. VOLT AND POWER RATIOS
1–8 . . . . FORMULAS FOR COMMUNICATIONS
1–9 . . . . COLOR CODES FOR RESISTORS
1–10 . . . . STANDARD VALUES FOR RESISTORS
. . . . CAPACITORS
1–11 . . . . COLOR CODES FOR CAPACITORS
. . . . COLOR CODES FOR CERAMIC CAPACITORS
1–12 . . . . STANDARD VALUES FOR CAPACITORS
1–13 . . . . CAPACITOR RATINGS
1–15 . . . . STANDARD WIRING COLOR CODES
1–16 . . . . WAVELENGTHS - ELECTROMAGNETIC
1–17 . . . . WAVELENGTHS - MECHANICAL
1–18 . . . . SMALL TUBE FUSES
1–19 . . . . FUEL CELLS AND BATTERIES
1–20 . . . . CHARACTERISTICS OF LEAD-ACID BATTERIES
. . . . MAGNETIC PERMEABILITY OF SOME
. . . . COMMON MATERIALS
. . . . TRANSISTOR CIRCUIT ABBREVIATIONS
. . . . RADIO FREQUENCY CLASSIFICATIONS
1–21 . . . . DATA MODULATION METHODS
. . . . GENERAL BANDWIDTH REQUIREMENTS
1–22 . . . . TRANSMISSION MEDIA AND CAPACITIES
. . . . COMMON CARRIER AND INDUSTRIAL
. . . . MICROWAVE FREQUENCY ALLOCATIONS
1–23 . . . . ELECTRONIC SYMBOLS
1–36 . . . . ELECTRICAL AND COMMON PREFIXES
. . . . COMMON ELECTRICAL QUANTITIES
. . . . CONVERSION TABLE
1–37 . . . . ELECTRICAL ABBREVIATIONS
1–38 . . . . CONVERSION FACTORS

CHAPTER 2
NETWORKING
2–1 . . . . LAN TOPOLOGIES
. . . . BUS
2–2 . . . . RING
2–3 . . . . STAR
2–4 . . . . LAN PROTOCOLS
. . . . TERMINAL AND HOST EQUIPMENT
2–5 . . . . TYPICAL NETWORK STRUCTURE
2–6 . . . . NETWORK COMMUNICATION MEANS
. . . . NETWORK CONNECTION PATTERNS
. . . . COMPUTER NETWORKS
2–7 . . . . CENTRALIZED COMPUTING MODEL
. . . . CLIENT/SERVER COMPUTING MODEL
. . . . COMMON ARCHITECTURES
2–8 . . . . NETWORK DEVICES USED IN ETHERNETS
2–9 . . . . ETHERNET FRAME TYPES
2–11 . . . . DISTINGUISHING BETWEEN ETHERNET
. . . . FRAME TYPES
2–12 . . . . GIGABIT ETHERNET PACKETS
2–13 . . . . BIT ERROR RATE
2–14 . . . . ETHERNET LAN CONFIGURATIONS
2–16 . . . . DEFINITIONS OF NETWORK COMPONENTS
2–17 . . . . NETWORK TERMS

CHAPTER 3
STRUCTURED CABLING
3–1 . . . . HISTORY OF STRUCTURED CABLING
. . . . PARAMETERS OF EIA/TIA 568
3–2 . . . . TYPICAL 568 CABLING LAYOUT
3–4 . . . . DISTANCE LIMITS FOR HORIZONTAL CABLING
3–5 . . . . EIA/TIA 568-B HORIZONTAL CABLES
3–16 . . . . STANDARD MATERIALS FOR STRUCTURED
. . . . CABLING (568) SYSTEMS
. . . . CABLE SPECIFICATIONS
3–17 . . . . STRUCTURED CABLING STANDARDS
3–18 . . . . UTP CABLE PAIRS USED BY
. . . . TYPICAL NETWORKS
3–19 . . . . ETHERNET 10 BASE - T STRAIGHT THRU
. . . . PATCH CORD
. . . . ETHERNET 10 BASE - T CROSSOVER
. . . . PATCH CORD
. . . . DIGITAL PATCH CABLE (DPC) CODING
3–20 . . . . TELECOMMUNICATIONS OUTLET
. . . . SPECIFICATIONS
. . . . STANDARD NETWORKING CONFIGURATIONS
. . . . IEEE ETHERNET STANDARDS
3–21 . . . . ETHERNET FAILURES
. . . . COMMON ETHERNET SYSTEMS
3–22 . . . . WIRING SCHEDULES
3–26 . . . . MODULAR PLUG ORIENTATIONS
3–27 . . . . MODULAR JACK ORIENTATIONS
. . . . PIN ORIENTATIONS
3–28 . . . . EIA/TIA 568 A MODULAR
. . . . CONNECTOR WIRING
. . . . EIA/TIA 568 B MODULAR
. . . . CONNECTOR WIRING
3–29 . . . . OPEN DEC CONNECT WIRING
. . . . USOC MODULAR CONNECTOR WIRING
. . . . CATEGORY DESIGNATIONS OF UTP CABLES
3–30 . . . . IBM TECHNICAL INTERFACE
. . . . SPECIFICATION GA 27-3773-1 REQUIREMENTS
3–32 . . . . POLARIZATION AND SEQUENCE
. . . . POLARIZATION OPTIONS
3–33 . . . . SEQUENCE OPTIONS
3–34 . . . . EIA-232 INTERFACE
3–35 . . . . IBM/AT STYLE RS-232 INTERFACE
3–36 . . . . EIA-449 INTERFACE
3–37 . . . . V.35 INTERFACE
3–38 . . . . IBM PC KEYBOARD INTERFACE
. . . . IBM PC PS/2 KEYBOARD INTERFACE
. . . . APPLE INTERFACE
. . . . HD15 VGA CONNECTOR
3–39 . . . . COMMON CONNECTOR TYPES
3–40 . . . . ETHERNET TRANSCEIVER (AUI) INTERFACE
3–42 . . . . 10 BASE - T/100 BASE - T JACKS
3–43 . . . . COMMON UNSHIELDED TWISTED PAIR DATA
. . . . AND VOICE WIRING SCHEMES
3–44 . . . . SEQUENCE IDENTIFICATION
3–45 . . . . SEQUENCE AND POLARIZATION CONVERSION
3–46 . . . . WIRELESS NETWORKING TERMS
3–47 . . . . EIA 570 RESIDENTIAL NETWORKS
3–48 . . . . TYPICAL EIA 570 CABLING SYSTEM FOR
. . . . SINGLE RESIDENTIAL NETWORKS
3–50 . . . . EIA 570 SPACE ALLOCATION
. . . . GUIDELINES FOR THE DD AND ASSOCIATED
. . . . EQUIPMENT
3–51 . . . . TYPICAL RESIDENTIAL SERVICES
. . . . SUPPORTED BY GRADE
. . . . T 568A PIN-PAIR ASSIGNMENT
3–52 . . . . BASIC 570 LINK TEST CONFIGURATION
3–53 . . . . EIA 570 CHANNEL TEST CONFIGURATION
3–54 . . . . TYPICAL 570 CABLING SYSTEM OF A SINGLE
. . . . RESIDENTIAL UNIT - FIRST FLOOR
3–55 . . . . TYPICAL 570 CABLING SYSTEM OF A SINGLE
. . . . RESIDENTIAL UNIT - SECOND FLOOR
3–56 . . . . TYPICAL 570 CABLING SYSTEM
. . . . COMPONENTS OF A MULTI-TENANT OR
. . . . CAMPUS ENVIRONMENT
3–58 . . . . TYPICAL 570 BACKBONE CABLING SYSTEM
. . . . FOR A MULTI-UNIT BUILDING OR CAMPUS
. . . . ENVIRONMENT
3–59 . . . . TYPICAL 570 BACKBONE CABLING SYSTEM
. . . . FOR A MULTI-TENANT BUILDING OR CAMPUS
. . . . ENVIRONMENT
3–60 . . . . TYPICAL 570 BACKBONE CABLING SYSTEM
. . . . FOR A MULTI-FLOOR BUILDING USING FLOOR
. . . . SERVING TERMINALS
3–62 . . . . TYPICAL 570 BACKBONE CABLING SYSTEM
. . . . FOR A STACKED MULTI-FLOOR BUILDING

CHAPTER 4
DATA CABLES
4–1 . . . . COMPUTER CIRCUITS
. . . . DATA SIGNAL TRANSMISSION
4–2 . . . . COPPER WIRE LIMITATIONS
4–3 . . . . ROUGHING AND TRIMMING
4–4 . . . . CABLE COLORS
4–5 . . . . SEPARATION FROM SOURCES OF
. . . . INTERFERENCE
4–5 . . . . MINIMUM BENDING RADII
4–6 . . . . COMMON TYPES OF NETWORK CABLING
4–7 . . . . ATTENUATION FOR COAXIAL AND UTP CABLES
. . . . GENERAL RULES FOR CABLE INSTALLATIONS
4–8 . . . . INSTALLATION REQUIREMENTS
. . . . CONDUCTORS ENTERING BUILDINGS
4–9 . . . . INTERIOR COMMUNICATIONS CONDUCTORS
. . . . REQUIREMENTS OF ARTICLE 725
4–10 . . . . DEFINITIONS
4–11 . . . . CLASS I REQUIREMENTS
4–12 . . . . DEFINITIONS OF CLASS 2 AND CLASS 3 CIRCUITS
. . . . CLASS 2 AND 3 REQUIREMENTS
4–14 . . . . CABLING CLASSIFICATIONS
4–15 . . . . UNDERGROUND RACEWAYS
. . . . BURYING CABLE
4–16 . . . . UNDERGROUND CABLE INSTALLATION
4–17 . . . . ROUTING OF OUTDOOR AERIAL CIRCUITS
4–18 . . . . CIRCUIT PROTECTION
4–20 . . . . CABLE SPECIFICATIONS
. . . . CHARACTERISTIC IMPEDANCE
4–21 . . . . SIGNAL REFLECTION
4–22 . . . . BASIC CONCEPTS OF OPTICAL FIBER
4–23 . . . . FIBER SAFETY PRECAUTIONS
. . . . TYPICAL BANDWIDTH - DISTANCE PRODUCTS
4–24 . . . . TYPICAL OPTICAL BUDGETS
. . . . FIBER OPTIC CONNECTORS -
. . . . DATA COMMUNICATION STYLES
4–25 . . . . TELEPHONE AND HIGH PERFORMANCE
. . . . STYLES
4–25 . . . . TYPICAL BANDWIDTH - DISTANCE PRODUCTS
. . . . OPTICAL CABLE JACKET MATERIALS AND
. . . . THEIR PROPERTIES
4–26 . . . . NEC CLASSIFICATIONS FOR OPTICAL CABLES
4–27 . . . . COMMON FIBER TYPES
4–28 . . . . COMPARISON OF LASER AND LED LIGHT
. . . . SOURCES
. . . . COMPARISON OF BUFFER TYPES
. . . . INDICES OF REFRACTION
. . . . TRANSMISSION RATES - DIGITAL TELEPHONE
4–29 . . . . MISMATCHED FIBER CONNECTION LOSSES (dB)
. . . . POWER LEVELS OF FIBER OPTIC
. . . . COMMUNICATION SYSTEMS
. . . . DETECTORS USED IN FIBER OPTIC POWER
. . . . METERS
. . . . FIBER OPTIC TESTING REQUIREMENTS
4–30 . . . . TYPICAL CABLE SYSTEM FAULTS
. . . . MOST COMMON CAUSES OF FAILURE IN
. . . . FIBER OPTIC LANS
4–31 . . . . FIBER OPTIC LOSS BUDGET ANALYSIS
4–32 . . . . CABLE PLANT PASSIVE COMPONENT LOSS
4–34 . . . . SPECIFICATIONS FOR FIBER OPTIC
. . . . NETWORKS
4–36 . . . . FIBER OPTIC LABOR UNITS
. . . . FIBER OPTIC SAFETY RULES
4–37 . . . . COMMON FIBER OPTIC CONNECTORS
4–38 . . . . OPTICAL CABLE CRUSH STRENGTHS
. . . . MAXIMUM VERTICAL RISE DISTANCES
. . . . MAXIMUM RECOMMENDED INSTALLATION
. . . . LOADS
. . . . TYPICAL TEMPERATURE RANGES OF
. . . . OPERATION
4–39 . . . . CABLE SELECTION CRITERIA
. . . . FIBER OPTIC DATA NETWORK STANDARDS
. . . . FIBER TYPES AND SPECIFICATIONS
4–40 . . . . GENERAL DESIGN FACTORS FOR OPTICAL
. . . . CABLING SYSTEMS
. . . . DESIGN CHOICES
4–41 . . . . FIBER CHOICE
. . . . CABLE DESIGN
4–42 . . . . FIBER PERFORMANCE
. . . . CABLE PERFORMANCE
4–43 . . . . INDUSTRY OPTICAL STANDARDS
4–44 . . . . INDUSTRY OPTICAL WORK STANDARDS
. . . . BLOWN-IN FIBER
4–45 . . . . CABLE ASSEMBLY SPECIFICATIONS

CHAPTER 5
TESTING
5–1 . . . . EIA/TIA 568 TESTING DISTANCE
. . . . SPECIFICATIONS
5–2 . . . . EIA/TIA 568 LINK DEFINITION
5–3 . . . . EIA/TIA LINK CONFIGURATION
5–4 . . . . NETWORK CABLING TEST REQUIREMENTS
. . . . COMMON CABLE TEST EQUIPMENT
5–5 . . . . ATTENUATION-TO-CROSSTALK RATIO
5–6 . . . . WIREMAPPING
. . . . EIA/TIA 568 A MODULAR PIN CONNECTIONS
5–7 . . . . MODULAR PIN CONNECTIONS-
. . . . REVERSED PAIR
. . . . MODULAR PIN CONNECTIONS-
. . . . SHORTS AND OPENS
5–8 . . . . MODULAR PIN CONNECTIONS-
. . . . SPLIT PAIRS
. . . . MODULAR PIN CONNECTIONS-
. . . . TRANSPOSED OR CROSSED PAIRS
5–9 . . . . BALANCED PAIR TRANSMISSION
. . . . ATTENUATION
5–10 . . . . NEXT (NEAR END CROSSTALK)
. . . . POWER SUM NEXT
5–11 . . . . ATTENUATION TO CROSSTALK RATIO
. . . . DELAY SKEW
5–12 . . . . TESTING OPTICAL FIBER
5–13 . . . . BASIC FEATURES OF THE OTDR TRACE
. . . . MICROSCOPE INSPECTION OF OPTICAL
. . . . CONNECTORS
5–14 . . . . INSPECTING FIBER CONNECTION WITH
. . . . MICROSCOPE
5–15 . . . . FIBER OPTIC TESTING REQUIREMENTS
. . . . OPTICAL POWER LEVELS OF FIBER
. . . . OPTIC COMMUNICATION SYSTEMS
. . . . CHARACTERISTICS OF DETECTORS USED IN
. . . . FIBER OPTIC POWER METERS
5–16 . . . . BASIC FIBER OPTIC CABLE LOSS TEST
. . . . DOUBLE-ENDED CABLE LOSS TEST
5–17 . . . . MISMATCHED FIBER CONNECTION LOSSES (dB)
. . . . OFSTP-14 CABLE PLANT LOSS TEST
5–18 . . . . TYPICAL FIBER OPTIC LINK
5–19 . . . . FIBER OPTIC LOSS GUIDELINES
. . . . EIA 445 FIBER OPTIC TEST
. . . . PROCEDURES (FOTPS)
5–23 . . . . SYSTEM TEST PROCEDURES
5–24 . . . . EIA 458-B STANDARD OPTICAL
. . . . FIBER MATERIAL CLASSES AND
. . . . PREFERRED SIZES

CHAPTER 6
TELEDATA
6–1 . . . . TELEPHONE CIRCUIT OPERATION
. . . . VOICE NETWORKS
6–2 . . . . WIRING CLOSETS
. . . . EQUIPMENT ROOMS
6–3 . . . . RATING PAIRED COPPER BUILDING CABLES
. . . . HORIZONTAL FOUR-PAIR CAT 5 CABLING
6–4 . . . . TRADITIONAL TELEPHONE NETWORK
6–5 . . . . KEY SYSTEM
6–6 . . . . PRIVATE BRANCH EXCHANGE
6–7 . . . . CENTREX
6–8 . . . . INTEGRATED SERVICES DIGITAL NETWORK
6–9 . . . . COMMON TELEPHONE CONNECTIONS
. . . . COLOR CODING OF CABLES
6–10 . . . . TWISTED-PAIR PLUGS AND JACKS
. . . . STANDARD PHONE JACKS
6–11 . . . . PIN CONNECTORS
. . . . CROSS CONNECTIONS
. . . . CATEGORY CABLING
. . . . INSTALLATION REQUIREMENTS
6–12 . . . . CONDUCTORS ENTERING BUILDINGS
. . . . CIRCUIT PROTECTION
6–13 . . . . INTERIOR COMMUNICATIONS CONDUCTORS
6–14 . . . . STANDARD TELECOM COLOR CODING
6–15 . . . . 25-PAIR COLOR CODING/ISDN
. . . . CONTACT ASSIGNMENTS
6–16 . . . . MODULAR JACK STYLES
. . . . COMMON WIRING CONFIGURATIONS
6–18 . . . . WIRING DIAGRAMS
6–24 . . . . ISDN ASSIGNMENT OF CONTACT NUMBERS
6–25 . . . . TYPICAL WIRING METHODS
6–26 . . . . 66 BLOCK WIRING AND CABLE COLOR CODING
6–28 . . . . 150-PAIR PIC CABLE CORE ARRANGEMENT
6–29 . . . . GENERAL RULES FOR PLANNING AND
. . . . PERFORMING A TELEPHONE INSTALLATION
6–31 . . . . TELEPHONE CONNECTIONS
6–32 . . . . SEPARATION AND PHYSICAL PROTECTION
. . . . FOR PREMISES WIRING
6–33 . . . . TYPES OF ISDN SERVICE
. . . . COMMON TYPES OF DIGITAL TELEPHONE
. . . . SERVICE
6–34 . . . . ISDN CABLING
. . . . ISDN NETWORK TERMINATION
. . . . ISDN U-LOOP
6–35 . . . . PHANTOM TELEPHONE CIRCUIT
. . . . STANDARD DTMF PAD AND FREQUENCIES
6–36 . . . . COMPUTER TELEPHONY TERMS
6–38 . . . . TELECOMMUNICATIONS ACRONYMS
6–42 . . . . CABLE MODEMS
. . . . CABLE MODEM OPERATION
. . . . CABLE MODEM INSTALLATION CONCERNS
6–43 . . . . BROADBAND TERMS
6–45 . . . . BASIC ADSL CONNECTION
6–46 . . . . BLOCK DIAGRAM OF COMPLEX ADSL
. . . . NETWORK

CHAPTER 7
VIDEO
7–1 . . . . BASIC TELEVISION CHANNEL
. . . . TELEVISION CHANNEL ALLOCATIONS
7–3 . . . . CABLE TV CHANNELS
7–4 . . . . HARMONICALLY RELATED CARRIERS
. . . . FOR CABLE TV CHANNELS
7–5 . . . . PRINCIPAL TELEVISION SYSTEMS
7–6 . . . . RADIO FREQUENCY BANDS
7–10 . . . . RADIO SERVICES AND TELEVISION
. . . . INTERFERENCE
7–7 . . . . FCC FREQUENCY ALLOCATIONS
7–9 . . . . COAXIAL CABLE CONSTRUCTION
. . . . COAXIAL CABLE CLASSIFICATIONS
7–10 . . . . SUBSTITUTIONS
. . . . ATTENUATION OF TRUNK AND DISTRIBUTION
. . . . CABLES (dB/100FT)
7–11 . . . . CCTV DESIGN
. . . . VIDEO SYSTEMS
7–12 . . . . CAMERAS
7–14 . . . . LENSES
. . . . SWITCHING AND SYNCHRONIZERS
7–15 . . . . VIDEO CASSETTE RECORDERS
. . . . VIDEO MOTION DETECTORS
7–16 . . . . OTHER VIDEO COMPONENTS
. . . . DROP PLANT SERVICE CALLS-
. . . . CABLE TV NETWORKS
7–17 . . . . IMAGE COMPRESSION STANDARDS
. . . . ENCODING RATE AND STORAGE
. . . . REQUIREMENTS
7–18 . . . . DIGITAL MODULATION COMPLEXITY
. . . . PICTURE TUBE DESIGNATIONS
7–19 . . . . GEOSTATIONARY SATELLITES FROM
. . . . EAST TO WEST
7–29 . . . . DSB-TV IN EUROPE
7–30 . . . . DSB-TV IN JAPAN

CHAPTER 8
COMPUTER AND INTERNET
8–1 . . . . SCSI PORT SINGLE-ENDED
. . . . 50-PIN PIN-OUT ASSIGNMENTS
8–2 . . . . SCSI PORT DIFFERENTIAL
. . . . 50-PIN PIN-OUT ASSIGNMENTS
8–3 . . . . SINGLE-ENDED DB-25 PIN-OUT
. . . . ASSIGNMENTS
8–4 . . . . SIGNALS ON A CENTRONICS-TYPE
. . . . CONNECTOR
8–5 . . . . PIN ASSIGNMENTS FOR AN RS-232C
. . . . CONNECTION
8–6 . . . . PIN-OUT ARRANGEMENT CARD
. . . . CONNECTOR SLOT
8–7 . . . . ASCII CODE CHART
8–8 . . . . V.35 INTERFACE
8–10 . . . . PARALLEL INTERFACE (CENTRONICS)
8–12 . . . . X.21 INTERFACE
8–14 . . . . EIA-530 INTERFACE
8–16 . . . . RS-232 INTERFACE
8–18 . . . . RS-449 INTERFACE
8–20 . . . . PC COM PORT-232
8–22 . . . . EIA-449 SECONDARY INTERFACE
8–24 . . . . CODE CONVERSION CHART
8–31 . . . . COMPUTER TROUBLE-SHOOTING
8–40 . . . . PRINTER TROUBLE-SHOOTING
8–43 . . . . MONITOR TROUBLE-SHOOTING
8–46 . . . . MODEM TROUBLE-SHOOTING
8–47 . . . . INTERNET TERMS
8–49 . . . . HTML TERMS
8–51 . . . . HTML DOCUMENT STRUCTURE
8–52 . . . . SYMBOLS
. . . . GENERAL
. . . . STRUCTURAL DEFINITION
8–53 . . . . PRESENTATION FORMATTING
8–54 . . . . DIVIDERS
8–55 . . . . LISTS
8–56 . . . . BACKGROUNDS AND COLORS
. . . . SPECIAL CHARACTERS
. . . . FORMS
8–58 . . . . LINKS, GRAPHICS, AND SOUND

CHAPTER 9
GLOSSARY

384 Pages - 4 x 6 in.