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Usage of usb datadiode – CRU USB DataDiode User Manual

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CRU-DataPort

U s e r M a n u a l f o r U S B D a t a D i o d e ( A9-000-0006) REV 1.0

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1.3 USB DataDiode Host Connections

1. USB DataDiode is equipped with a USB Type A receptacle for

attaching your USB media.

2. USB DataDiode has two USB Type B ports for attaching to your host data source and secure

host destination.

Read/Write port - Your standard host will have full read and write
access to the connected USB device. In this mode, no access is
granted to or from secure host. The “Read Only” circuitry is powered
off, and no data path exists between the host ports.


Read-Only port - The connection to the standard host is halted, and a
connection is established to the secure host. The secure host can only
copy files from the USB device, but cannot write files to the USB
device.


2. Usage of USB DataDiode

2.1 Transferring Data


Properly connect the unit.

Ensure that the Host Select switch is switched
to Read/Write (the green LED will light).

Copy data from the host data source to the
USB device.

Flip the switch (both red LEDs will light).

Copy data from the USB device to the secure
host destination.



2.2 Remount button


The USB DataDiode is bus-powered by the USB port from the computer so there is no need for an on/off
switch. However, there is a “Remount” button for a few instances where USB devices might not be
recognized by the computer. If that is ever the case, unplug the USB device from USB DataDiode, and
then plug it back in and press the “Remount” button.