Digital BUS-WATCH
®
R1001 / R4001
USB A-B CABLE
PENTIUM COMPUTER
USB
PORT
HDD
REAR VIEW
USB
2.0 PORT
(B)
(A)
GREEN
DOT
NOTE LOCK
POSITION
Figure 10: Hard Disk Drive Module USB Security Lockout
The REI Removable Hard Drive Modules come with an enhanced
security feature that allows the property to lock out the USB port on the
back of the module, as shown in Figure 10 above. This feature allows
another level of protection, in addition to chain of custody, to ensure that
the information stored on the drive will not be tampered with or erased.
When the keylock on the back of the DVR is switched into the green dot
position, the USB port functions normally and the hard drive will be
recognized by a PC as an external USB hard drive. When the keylock is
switched into the red dot position, the USB port is disabled and a
computer will not be able to access the files stored on the drive.
Regardless of the position of the keylock switch, the DVR is always able
to access the drive, so the switch can be left in the red dot (USB off)
position during normal DVR operation with no adverse effects. In this
situation, the hard drive USB keys can be safely kept with the proper
personnel for added assuredness of video evidence integrity.
Page 18 of 96
Radio Engineering Industries, Inc.
640370 -- Rev 0 -- 8/17/2007
