WorkCentre 7220-7225 Information Assurance Disclosure Paper
Ver. 1.0, January 2013 Page 7 of 61
2.1. Security-relevant Subsystems
2.1.1. Physical Partitioning
The security-relevant subsystems of the product are partitioned as shown in Figure 2-2.
Fax Module
Image Output
Terminal (also
known as Marking
Engine)
Controller/GUI
Power Supply
Scanner /
Document Handler
P
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r
In
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a
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P
C
I
B
u
s
TOE Physical Boundary
Original
Documents
Optical
interface
Human Interface
Hardcopy
(Finisher)
Paper output interface
B
u
t
t
o
n
s
a
n
d
D
i
s
p
l
a
y
PSTN (RJ-11 Port)
P
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i
c
a
l
e
x
t
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r
n
a
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i
n
t
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a
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Ethernet Port,
USB Target Port, USB
Host Ports, Scanner
Interface, Serial Port,
Foreign Device Interface
P
h
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s
i
c
a
l
e
x
t
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r
n
a
l
I
n
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r
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a
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s
Power Cord
Power Button
Button and TOE internal wiring
(proprietary)
Physical external
Interface
Figure 2-2 System functional block diagram
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