Chapter 6 -- Panel Indicators and Connectors--Rear Panel
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Chassis Ground
The rear panel Chassis Ground is intended for one use only. See Chapter 1, for safety information concerning
this connection. A black banana-plug to banana-plug lead has been provided with your eQCM 10M. You may
find it useful when making this earth ground connection.
USB Port
The USB port on the rear panel of the eQCM 10M is a Type B connector as defined in Revision 1.1 and 2.0 of
the USB Specification. You use a standard, shielded, Type A/B cable to connect this port to a computer’s USB
port or a USB hub (preferably an externally powered hub). The two ends of a Type A/B cable are different.
The more-rectangular end plugs into the computer and the more-square end plugs into the instrument.
A suitable USB cable was included with your eQCM 10M system. If this cable is lost, you can replace it with a
cable from your local computer retailer.
The eQCM 10M is a High Speed USB 2.0 peripheral, capable of data transfer at 480 Mbits/second. If it is
plugged into a computer port incapable of High Speed operation it will downgrade to USB 1.1 full speed
operation (12 Mbits/second). Obviously data transfer speed will be slower if this occurs.
The eQCM 10M USB port is compatible with Revision 1.1 and 2.0 of the USB specification. It supports the
Windows Plug-n-Play mechanism, including dynamic connect/reconnect.
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