Electrical Concepts For Interconnect Professionals

Electrical Concepts For Interconnect Professionals

Overview What are common protocols What questions should you ask What are Glenair s solutions

Proliferation of High Speed Electrical Systems in Mil\Aero Built-In High Speed Communications

Proliferation of High Speed Electrical Systems in Mil\Aero Demand for Data

Communication System\Networks: What should we consider Protocol Data Rate Distance Hardware Cost\Availability

What Happens at High Speed\Frequency? Electromagnetic Energy Travels Outside of the Conductor Wavelengths Get Shorter

What Happens at High Speed\Frequency? In High Speed Systems We Have To Closely Consider: Tighter Mechanical Tolerances \ Smaller Dimensions Careful Consideration of Material Selection

Communication Basics Basic Definitions. Bandwidth Data Rate Insertion Loss Impedance VSWR Jitter and Skew

High Speed Transmission Bandwidth vs. Data Rate Data Rate: The number of BITS transmitted per unit time. This includes data compression via specialized IC s. Bandwidth: Frequency of the carrier wave. Ultimate Goal: Maximize Bandwidth Minimize Data Rate

High Speed Transmission Insertion Loss Power (Transmit) Power (Received) IIIIIIIII LLLL = 10 log 10 PPPPP TTTTTTTT PPPPP RRRRRRRR Contributors to Insertion Loss: Material Absorption Radiation

High Speed Transmission Impedance is frequency dependent Direct Current (DC) Alternating Current (AC)

High Speed Transmission Voltage Standing Wave Ratio (VSWR) And Return Loss Power (Transmit) 100 Ohm 100 Ohm Power (Received) Impedance Perfectly Matched: VSWR 1 No Return Loss

High Speed Transmission Voltage Standing Wave Ratio (VSWR) And Return Loss Power (Transmit) 100 Ohm 50 Ohm Power (Received) Impedance Mismatch: VSWR>1 High Return Loss

Getting Practical Cabling Protocols Drive Cable Choice Single Ended Transmission DC to 200KHz Differential Pair DC to 3GHz

Electrical Communication Basics Single Ended Transmission, A Simple Scheme, However

Electrical Communication Basics Differential Data Transmission Low Power and Noise Immune This is why they are called differential

Electrical Communication Basics Why are wires twisted. EMI\RFI Source So both wires are equally exposed.

Impedance of a Differential Cable Z l ε r R l R

Bandwidth X Distance

Common High Speed Differential Protocols (1) Mil\Aero Data Bus MIL-STD-1553 CANBUS MIL-STD-1760 ARINC-429 IEEE-1394 (Firewire) ARINC-664 (AFDX) (2) Ethernet/Networking 10-BaseT 100-BaseT 1000-BaseT 10G-BaseT (3) Peripherals and Displays USB 2.0/3.0 SATA HDMI Displayport

(1) Mil\Aero Protocols Protocol # of Pairs Cabling Spec Bandwidth Cable Construction CANBUS\ ARINC-825 1553 (ARINC-429) 1 Pair Per Channel 1 Pair per Channel 100 Ohm < 1 MHz Twisted Pair 70-85 Ohm 1 MHz Twinax ARINC-664 (AFDX) 2 Pairs 100 Ohm 5-10 MHz 2 Twisted Pairs

(2) Ethernet/Networking Protocols Protocol # of Pairs Simplex\ Duplex Cabling Spec Bandwidth Cable Construction 10BASE-T 2 Simplex CAT3/4 5-MHz 4 UTP 100BASE-T 2 Simplex CAT4/5 20-MHz 4 UTP 1000BASE-T 4 Duplex CAT5/5E 100-MHz 4 STP 10GBASE-T 4 Duplex CAT 6/6A 500-MHz 4 STP

(3) High Speed (Peripheral and Display) Protocols Protocol Pin Count Cabling Spec Bandwidth Data Rate Cable Const. USB 2.0 4 90-Ohm 400 MHz 480 MB/s 1 Data Pair 1 Power Pair esata 7 100-Ohm Up to 4.5 GHz 3 GB/s 2 Data Pairs USB 3.0 9 90-Ohm Up to 7.5 GHz 5 GB/s 3 Data Pairs 1 Power Pair DisplayPort 20 100-Ohm Up to 540 MHz 5 GB/s-17 GB/s 4 Data Pairs HDMI 19 100-Ohm 340 MHz 10 GB/s 4 Data Pairs

Data Protocols: Bandwidth X Distance

Connector Performance with Standard Contacts and Suitable Cables

Controlled Impedance Contacts

Product Positioning for High Speed: (1) Mil-Aero Data Bus Protocols (CANBUS, 1553) Recommend any standard or high-density connector series equipped with controlled impedance OR standard signal contacts

Product Positioning for High Speed: (2) Ethernet/Networking Protocols (10-BaseT to 1000-BaseT) Recommend any high-density connector series equipped with Quadrax, standard signal, RJ45, USB, etc

Product Positioning for High Speed: (3) Peripheral and Display Protocols (esata, USB 3.0, HDMI) Recommend any Ultra-high-density connector series equipped with controlled impedance, standard signal, OR Fiber Optics

High Speed Product Roadmap Product Improvements & Extensions Matched Impedance Designs (Connectors, Contacts and Cables) Electrical and Electro-optical Actives

Product Positioning: Series 80 High-Speed Mighty Mouse = for esata, USB 3.0 and Higher

Product Positioning: YES we do Ruggedized RJ-45 and USB Ethernet Connectors

In Development: High-Speed Micro-D Pre-Terminated to Flex

High Performance Bulk Cable Glenair Branded & Labeled w\part Number Mil\Aero Temperature Rated (>150-C) Available in Bulk For common protocols: SATA, USB, CAT 6/6A, Coax

Media Conversion What is it? 1000Base-T (Electrical Ethernet) 4 Twisted Pairs M\C Integrated Circuit Power 5V-40V Optical Module 2 Fibers 1000Base-SX\LX (Optical Ethernet) Electrical Protocol Optical Protocol Optical Range 1000BASE-T 1000BASE-SX Multimode 250-550 m 1000BASE-T 1000BASE-LX Singlemode 5 Km

Introducing our First M\C: 05-001

The Origin of Twisted Pair Alexander Graham Bell