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Windows 7: USB cord length
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17 Jul 2011
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#1 | |
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USB cord length
Anyone know if there's a working restriction on a length for USB 2 cord im running A 20FT cord, I have a touch screen on my media center screen as I use as the control for Media, Video, music and my big screen, any how it seems to work for about 15mins and then goes a little flakey and stops workin. the only way to rectify it is pull out the USB to the back of the monitor and plug it back in,  | My System Specs |
| Computer type PC/Desktop
System Manufacturer/Model Number Home Built Media Center PC
OS Window pro 8 64bit
CPU AMD PHENON 1090T 6 core
Motherboard Gigabyte GA-890GPA-UD3H
Memory 16.00 GB mushkin 1333mhz
Graphics Card ATI RADEON HD 6850 1GB DDR5
Sound Card On Board Realtec ALC880
Monitor(s) Displays Samsung 27Inch IPS LED & LG 42 Inch Plasma
Screen Resolution 1920 - 1080
Keyboard Microsoft Curve Keyboard
Mouse Logitec T650 Touch pad
PSU Corsair 650
Case Full Tower Antec ARMOR
Cooling 3 x 120 Fans
Hard Drives C:/Windows Drive = Corsair Force III Series Solid State Drive, 240GB
2 X Hitachi 1TB Deskstar 7K1000.C SATA II Internal Drive Kit w/ 32MB Cache
2 X Hitachi 2TB Deskstar 7K1000.C SATA II Internal Drive Kit w/ 64MB Cache
LG Super-Multi 22x DVD Wri
Internet Speed Shaw 50 Mbs
Antivirus Microsoft security Essentials
Browser Crome
Other Info A few updates March 2013
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18 Jul 2011
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#2 | |
Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1 Hertfordshire |
According to Wikipedia it is 5 meters. USB - Wikipedia, the free encyclopedia | | My System Specs | | Computer type PC/Desktop
System Manufacturer/Model Number Hewlett-Packard/G62-107SA Notebook
OS Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
CPU Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
Motherboard Hewlett-Packard 1425
Memory 8 GB DDR3
Graphics Card Intel(R) HD Graphics
Sound Card Realtek High Definition Audio
Monitor(s) Displays Builtin
Screen Resolution 1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Mouse Microsoft Bluetooth Notebook Mouse 5000
Hard Drives 250 GB SATA Hard Disk Drive 7200 rpm
2TB Seagate GoFlex USB 2 Drive
1TB Iomega Prestige USB 2 Drive
1.5TB Iomega Prestige USB 2 Drive (Samsung)
1TB Iomega NAS.
Internet Speed 60 Mbs download 3 Mbs upload
Antivirus Norton 360
Browser Chrome
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18 Jul 2011
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#3 | |
Win 7 Pro 64-bit South Central Texas |
| | My System Specs | | Computer type Laptop
System Manufacturer/Model Number Sony Vaio VPCEB47GM Laptop
OS Win 7 Pro 64-bit
CPU Intel i5 2.4 Ghz
Memory 8GB DDR3
Graphics Card Intel HD 3000
Sound Card IDT High Definition
Monitor(s) Displays 15.6 WGXA Anti-Glare LED
Screen Resolution 1280x800
Hard Drives 640Gb 7200rpm
Antivirus MSE
Browser Opera (primary) with IE9 backup
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18 Jul 2011
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#4 | |
Windows 7 Professional 32 bit Ann Arbor Area, MI |
Quote: Originally Posted by Britjoe  Anyone know if there's a working restriction on a length for USB 2 cord im running A 20FT cord, I have a touch screen on my media center screen as I use as the control for Media, Video, music and my big screen, any how it seems to work for about 15mins and then goes a little flakey and stops workin. the only way to rectify it is pull out the USB to the back of the monitor and plug it back in,
Hi, we just went over this topic not too long ago in my Computer Tech. class. I will give you a breakdown on what the instructor gave us (these are max lengths):
Serial @ 9600 bps................................20 feet
EPP/ECP Parallel...................................20 feet (6 meters)
USB 1.1 Full Speed...............................10 feet (3 meters)
USB 2.0 High Speed..............................16.4 feet (5 meters)
1394a ( Firewire400)..............................14.8 feet (4.5 meters)
1394b ( Firewire800)..............................328 feet!!! (100 meters) *Optical 
I hope this helps you and isnt t.m.i.
Last edited by ltmcmullen; 18 Jul 2011 at 12:47 PM..
Reason: Forgot to add another tidbit
| | My System Specs | | System Manufacturer/Model Number Dell Optiplex GX620
OS Windows 7 Professional 32 bit
CPU Intel Pentium D CPU 3.20GHz, 3200 Mhz, 2 Cores
Memory 4 GB
Graphics Card GeForce GT 520 (ASUS)
Sound Card ON-Board
Monitor(s) Displays Samsung B2030
Screen Resolution 1600 x 900
Mouse Logitech Wireless Laser
Hard Drives 80 GB - Win7 PE System Drive / Virtual Box
700 GB - DATA Drive / WIN8 Beta VB
20 GB - Boot / WIN98 SE_DOS / WIN XP Pro
20 GB - DOS 6.22 / WIN XP paging / WIN7 Paging
8 GB - Thumb Drive (Dedicated Ready Boost)
Internet Speed DSL
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18 Jul 2011
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#5 | |
Windows 7 Professional 32 bit Ann Arbor Area, MI |
Oh and by the way, I have found that those USB jacks on the monitors are not all what they are jacked up to be. Well, at least the one I have used (sorry Dell!) | | My System Specs | | System Manufacturer/Model Number Dell Optiplex GX620
OS Windows 7 Professional 32 bit
CPU Intel Pentium D CPU 3.20GHz, 3200 Mhz, 2 Cores
Memory 4 GB
Graphics Card GeForce GT 520 (ASUS)
Sound Card ON-Board
Monitor(s) Displays Samsung B2030
Screen Resolution 1600 x 900
Mouse Logitech Wireless Laser
Hard Drives 80 GB - Win7 PE System Drive / Virtual Box
700 GB - DATA Drive / WIN8 Beta VB
20 GB - Boot / WIN98 SE_DOS / WIN XP Pro
20 GB - DOS 6.22 / WIN XP paging / WIN7 Paging
8 GB - Thumb Drive (Dedicated Ready Boost)
Internet Speed DSL
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18 Jul 2011
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#6 | |
Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1 Hertfordshire |
You can also get active repeaters which can extend another 5 meters. I don't know whether you can daisy-chain those to get longer lengths than 10 meters. | | My System Specs | | Computer type PC/Desktop
System Manufacturer/Model Number Hewlett-Packard/G62-107SA Notebook
OS Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
CPU Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
Motherboard Hewlett-Packard 1425
Memory 8 GB DDR3
Graphics Card Intel(R) HD Graphics
Sound Card Realtek High Definition Audio
Monitor(s) Displays Builtin
Screen Resolution 1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Mouse Microsoft Bluetooth Notebook Mouse 5000
Hard Drives 250 GB SATA Hard Disk Drive 7200 rpm
2TB Seagate GoFlex USB 2 Drive
1TB Iomega Prestige USB 2 Drive
1.5TB Iomega Prestige USB 2 Drive (Samsung)
1TB Iomega NAS.
Internet Speed 60 Mbs download 3 Mbs upload
Antivirus Norton 360
Browser Chrome
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18 Jul 2011
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#7 | |
Win 7 Pro 64-bit South Central Texas |
From my previous post and link: Quote: Q3:How far away from a PC can I put a USB device?
A3: With the maximum of 5 hubs connected with 5m cables and a 5m cable going to your full speed device, this will give you 30m of cable (see section 7.1.19 for details). With a low speed device, you will be able to get a range up to 27m, depending on how long the device's cable is. With a straightforward cable route, you will probably be able to reach out 25m or so from the PC.
Q4:I need to put a USB device X distance from my PC. What do I do?
A4: If X is less than 25m or so (see previous question), buy a bunch of hubs and connect them serially with 5m cables. If you need to go farther than that, put another PC, or maybe a laptop, out where you need the device to be and network it with the first PC using something that's intended to be a long-range connection, such as Ethernet or RS-485. If you need to use nothing but USB, consider using USB based Ethernet adapters to hook the PCs together. | | My System Specs | | Computer type Laptop
System Manufacturer/Model Number Sony Vaio VPCEB47GM Laptop
OS Win 7 Pro 64-bit
CPU Intel i5 2.4 Ghz
Memory 8GB DDR3
Graphics Card Intel HD 3000
Sound Card IDT High Definition
Monitor(s) Displays 15.6 WGXA Anti-Glare LED
Screen Resolution 1280x800
Hard Drives 640Gb 7200rpm
Antivirus MSE
Browser Opera (primary) with IE9 backup
|
18 Jul 2011
|
#8 | |
Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1 Hertfordshire |
Ah that makes sense. I missed that. I guess an active repeater is just a hub with one input and one output.  | | My System Specs | | Computer type PC/Desktop
System Manufacturer/Model Number Hewlett-Packard/G62-107SA Notebook
OS Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1
CPU Intel(R) Core(TM) i3 CPU M 330 @ 2.13GHz
Motherboard Hewlett-Packard 1425
Memory 8 GB DDR3
Graphics Card Intel(R) HD Graphics
Sound Card Realtek High Definition Audio
Monitor(s) Displays Builtin
Screen Resolution 1366 x 768 x 32 bits (4294967296 colors) @ 60 Hz
Mouse Microsoft Bluetooth Notebook Mouse 5000
Hard Drives 250 GB SATA Hard Disk Drive 7200 rpm
2TB Seagate GoFlex USB 2 Drive
1TB Iomega Prestige USB 2 Drive
1.5TB Iomega Prestige USB 2 Drive (Samsung)
1TB Iomega NAS.
Internet Speed 60 Mbs download 3 Mbs upload
Antivirus Norton 360
Browser Chrome
|
18 Jul 2011
|
#9 | |
Windows 7 Professional 32 bit Ann Arbor Area, MI |
Quote: Originally Posted by marsmimar From my previous post and link: Quote: Q3:How far away from a PC can I put a USB device?
A3: With the maximum of 5 hubs connected with 5m cables and a 5m cable going to your full speed device, this will give you 30m of cable (see section 7.1.19 for details). With a low speed device, you will be able to get a range up to 27m, depending on how long the device's cable is. With a straightforward cable route, you will probably be able to reach out 25m or so from the PC.
Q4:I need to put a USB device X distance from my PC. What do I do?
A4: If X is less than 25m or so (see previous question), buy a bunch of hubs and connect them serially with 5m cables. If you need to go farther than that, put another PC, or maybe a laptop, out where you need the device to be and network it with the first PC using something that's intended to be a long-range connection, such as Ethernet or RS-485. If you need to use nothing but USB, consider using USB based Ethernet adapters to hook the PCs together.
I know I'm still learning all this stuff... but... would it not be better to just go IEEE 1394? That way you can dismiss the distance issues and have the capability to connect up to 63 peripherals? | | My System Specs | | System Manufacturer/Model Number Dell Optiplex GX620
OS Windows 7 Professional 32 bit
CPU Intel Pentium D CPU 3.20GHz, 3200 Mhz, 2 Cores
Memory 4 GB
Graphics Card GeForce GT 520 (ASUS)
Sound Card ON-Board
Monitor(s) Displays Samsung B2030
Screen Resolution 1600 x 900
Mouse Logitech Wireless Laser
Hard Drives 80 GB - Win7 PE System Drive / Virtual Box
700 GB - DATA Drive / WIN8 Beta VB
20 GB - Boot / WIN98 SE_DOS / WIN XP Pro
20 GB - DOS 6.22 / WIN XP paging / WIN7 Paging
8 GB - Thumb Drive (Dedicated Ready Boost)
Internet Speed DSL
|
18 Jul 2011
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#10 | |
Win 7 Pro 64-bit South Central Texas |
Quote: Originally Posted by ltmcmullen I know I'm still learning all this stuff... but... would it not be better to just go IEEE 1394? That way you can dismiss the distance issues and have the capability to connect up to 63 peripherals? Sure. But Op specifically asked about length restrictions for a USB 2 cord. And not every machine, especially laptops, have FireWire connectivity. (Like my ancient Dell Inspiron 1200 running Ubuntu.  ) | | My System Specs | | Computer type Laptop
System Manufacturer/Model Number Sony Vaio VPCEB47GM Laptop
OS Win 7 Pro 64-bit
CPU Intel i5 2.4 Ghz
Memory 8GB DDR3
Graphics Card Intel HD 3000
Sound Card IDT High Definition
Monitor(s) Displays 15.6 WGXA Anti-Glare LED
Screen Resolution 1280x800
Hard Drives 640Gb 7200rpm
Antivirus MSE
Browser Opera (primary) with IE9 backup
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