USB, Serial, and Thunderbolt Connections
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43 Terms
Question
Answer
What does USB stand for?
Universal Serial Bus
What is USB the standard connection for?
Peripherals like keyboards
What are the two speeds of USB 1.1?
Low Speed (1.5 Mbps) and Full Speed (12 Mbps)
What is the max cable length for USB 1.1 Low Speed?
3 meters
What is the max cable length for USB 1.1 Full Speed?
5 meters
What is the maximum speed of USB 2.0?
480 Mbps over a 5-meter cable
What is the maximum speed of USB 3.0 (SuperSpeed)?
5 Gbps over a 3-meter cable
What is the maximum speed of USB 3.1?
10 Gbps
What is the maximum speed of USB 3.2?
20 Gbps
Do USB specifications define exact cable lengths?
No
What is the Standard A Plug used for in USB 1.1/2.0?
A common rectangular connector still used today
What is the Standard B Plug used for in USB 1.1/2.0?
A square-shaped connector used for printers and external devices
What connectors are used for mobile devices in USB 1.1/2.0?
Mini B Plug and Micro B Plug
How does the USB 3.0 Standard A Plug differ from USB 2.0?
Same form factor but often colored blue for identification
How does the USB 3.0 Standard B Plug differ from USB 2.0?
It is taller than the USB 2.0 version
How does the USB 3.0 Micro B Plug differ from USB 2.0?
It has a different form factor
What is USB-C designed to do?
Replace older USB connector types
What is a key feature of USB-C's orientation?
It is reversible
What can USB-C support?
Multiple signal types (data
How does USB-C compare in size to Micro B?
Similar size but with a symmetrical design
What connection type was used for peripherals before USB?
Serial cables
What does RS-232 stand for?
Recommended Standard 232
Since when has RS-232 been a serial communication standard?
1969
What are the two common RS-232 connectors?
DB9 (DE9) and DB25
How many pins does a DB9 connector have?
9 pins (technically DE9
How many pins does a DB25 connector have?
25 pins
What are modern uses for serial/RS-232 connections?
Connecting to legacy equipment like switches
What connector types can console ports use?
RJ45
What is often needed to connect modern USB ports to older console ports?
Adapters
What is Thunderbolt?
A high-speed serial connection combining data and power in a single cable
What feature does Thunderbolt support for connecting multiple devices?
Daisy-chaining
What connector did Thunderbolt 1 use?
Mini DisplayPort
What was Thunderbolt 1's throughput?
Two channels of 10 Gbps each
What was Thunderbolt 2's aggregated throughput?
20 Gbps
What connector did Thunderbolt 2 use?
Mini DisplayPort
What connector does Thunderbolt 3 use?
USB-C
What is Thunderbolt 3's aggregated throughput?
40 Gbps
What is Thunderbolt 3's max cable length for copper?
3 meters
What is Thunderbolt 3's max cable length for optical?
60 meters
What is Thunderbolt 4's aggregated throughput?
40 Gbps
What displays does Thunderbolt 4 support?
Dual 4K displays
What did Thunderbolt 4 increase for faster data transfer?
Bandwidth to the PCI Express bus