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.USB. VI Basic Operations
5 Using the DS-L1 when Connected to a PC by a USB Cable
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USB interface boards and hubs
The DS-L1 supports USB 2.0.
If the DS-L1 and the USB interface board are connected in one of the following ways, data
is transferred at a rate of 12 Mbps compliant with the USB 1.1 standard.
If the DS-L1 and the USB interface board are connected in one of the following ways, data
is transferred at a rate of 480 Mbps compliant with the USB 2.0 standard.
Make sure that the USB 1.1 interface board and USB 1.1 hub used in the system are
compliant with the USB 1.1 standard, and that the USB 2.0 interface board and USB 2.0
hub used in the system are compliant with the USB 2.0 standard.
To avoid unexpected problems, we recommend that the interface board and the DS-L1 be
connected in only one hub stage, and not in cascaded hub stages.
NOTE: When multiple units of DS-L1 are connected to a Windows 2000 machine
equipped with a USB 1.1 interface board, or a USB 1.1 hub, the DS-L1 units
do not operate normally.
If connecting multiple units of DS-L1 is desired, use a USB 2.0 interface
board and a USB 2.0 hub, or use Windows XP for the OS.
USB cables
The DS-L1 does not come with a USB cable. Be sure to purchase an appropriate cable that
suits the USB standard of the PC or hub that will be used.
• USB 1.1 or USB 2.0-compliant cable when the PC or hub is USB 1.1
• USB 2.0-compliant cable when the PC or hub is USB 2.0
The DS-L1 may not operate reliably if you use cables other than those specified.
USB 2.0 interface board DS-L1
USB 2.0 interface board USB 2.0 hub DS-L1
USB 1.1 interface board DS-L1
USB 1.1 interface board USB 1.1 hub DS-L1
USB 2.0 interface board USB 1.1 hub DS-L1