Connectors, Cables, Terminations and Rack Building

10/27/2016
1
Connectors, Cables, Terminations
and Rack Building
Andre LeJeune, CTS
InfoComm Instructor
Copyright 2014 by InfoComm International®
Today’s Topics
• Connectors
• Cable
• Termination Types
• Rack Wiring

10/27/2016
2
Connectors
Cables, connectors and signal types generally fall into
these categories:
• Audio
• Video
• Ethernet
• Other
Audio Connectors
• XLR
• 1/4 inch (6.35mm) Phone
• Phono / RCA
• 3.5 mm Mini
• Euroblock

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XLR
1/4 inch (6.35mm) Phone

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XLR / 1/4 inch (6.35 mm) Combo Jack
3.5 mm Mini
Tip & Sleeve
(Mono)
Tip, Ring & Sleeve
(Stereo)

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Phono / RCA
• Unbalanced Audio
speakON / HPC / Cliffcon

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Screw Terminal / Barrier Strip
Euroblock

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Banana / Dual Banana
Phono / RCA – Analog Video
• Phono / RCA

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BNC – Analog and Digital / RF
• BNC
75Ω (Video)
50Ω (RF)
HD-15 – Analog
• HD-15 (VGA)

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DVI – Digital Visual Interface
HDMI

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DisplayPort
USB 3.1 Type C
Gen1: 5Gbps
Gen2: 10Gbps
Power Delivery Options:
3A standard cables
5A connectors
Extended 5V current ranges

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Modular / 8P8C
Fiber Optic
• ST
• LC
• SC

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DB-9
• DB-9
DB BaseT Cloud Connector
P.S.‐ This is not a real connector

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Today’s Topics
 Connectors
• Cable
• Rack Wiring
Coax

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Twisted Pair
Multicore / Multipair

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Category Cable
• Category 5e
• Up to 100 MHz
• Up to 1000BASE-T (Gigabit)
• Category 6
• Up to 250 MHz
• Up to 10GBASE-T (10-Gigabit)
Fiber Optic
• Benefits:
– Secure
– Immune from electromagnetic interference (EMI),
radio frequency interference (RFI) and lightning
– Lighter weight
– Higher bandwidth
– No ground loop problems
– Can lessen infrastructure costs

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Fiber Optic
• Multimode
50 micron
62.5 micron
• Single-Mode
8 to 10 microns
Today’s Topics
 Connectors
 Cable
• Rack Wiring

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Direct Connection
• Premade
• Screw Terminal
• Crimp
• Compression
• Solder
Premade
• DVI, HDMI, DisplayPort
• USB
• Others

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Screw Terminal
Crimp Terminal

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Crimp
Compression

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Linear Compression
Insulation Displacement Connector (IDC)

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Solder
Testing

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Today’s Topics
 Connectors
 Cable
 Termination Types
• Rack Wiring
Rack Wiring
• Rack Cooling
• Bend Radius
• Signal Separation
• Cable Management

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Rack Wiring
Loading and Mounting Equipment
• Check fit and position
• Serial numbers
• DIP switches

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Cooling – Evacuation / Pressurization
Signal Separation

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Lacing Strips
Lacing Bars

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Twisted Pair – Part of a Balanced Interface
• "A balanced circuit is a two-conductor circuit in which
both conductors and all circuits connected to them have
the same impedance with respect to ground and all other
conductors." - Henry Ott, Noise Reduction Techniques in
Electronic Systems, 2nd Ed. page 116
• Defense against unwanted noise
• Rejection of Common-Mode noise
Unbalanced Interface
• Center conductor and shield
– Impedance between the signal conductor (center
conductor) and shield (return conductor) is not the
same – “unbalanced”
– No protection against interfering noise
– Cable length limitations
– Clues
• Consumer gear
• Phono (RCA) connectors

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Cable Bend Radius
Antennas

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Copyright 2014 by InfoComm International®Copyright 2014 by InfoComm International®
Today’s Topics
 Connectors
 Cable
 Rack Wiring
 Next… Can you indentify the problem?

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What’s wrong?
What’s wrong?

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What’s wrong?
Today’s Topics
 Connectors
 Cable
 Rack Wiring

10/27/2016
31
Copyright 2014 by InfoComm International®Copyright 2014 by InfoComm International®

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