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1.7 DATA FLOW
Figure 1-5
shows the IBM 3205 data flow.
Logic Unit
r---
Alarm
L
Test/
Status
Normal
Light
Switch
Figure
1-5.
Video Unit
-------..,
Refresh
Control
and
Buffer
Analog
Circuit
Display
and
Communi-
cation
Control
I
I
(Video)
+5V,+12V
I
I
I
I
Power on
Light
I
(Communication)
Ilf"I
(
Coaxial
ULJr-----... -
Interface
~
Security Keylock Switch
Brightness
Control
Knob
Keyboard
and
Diagnostic
Control
(Keyboard)
r------
I
- - _
Color
Switch
(00/0000)
Audible
Alarm
Volume
Control
I
Knob
I
I
___ ..J
Monocase/
Dualcase
Switch
(A/A,a)
IBM 3205 Data Flow
I
..,
Keyboard Unit
I
I
I
I
I
.J
Chapter 1. Introduction
1-7
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