Bruker BSMS/2 - Page 32

BSMS Keyboard KBC
32 Bruker
BSMS/2 Mainframe Version 001
Figure 17: BSMS Keyboard Block Diagram
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DLED +/–
CLK +/–
STROBE +/–
DLED
CLK
ADC
FWD REFL
Router Display
TOGGLE +/–
Alphanumeric Display
T_POWER
CHAN.
RS-485
TXD +/–
RXD +/–
TPD +/–
Version Controller
Board
+5V
+12V
DC
DC
Knob
Buzzer
Controller Board Display Board
Keys and
Key Column Sense
Version Display
Board
Key Row
Select
LED Row
Select
VPWR
LED and Key Column Select
Enable
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Keyboard Connector
(Shift Register and Driver)
2 × 8 Characters
SELECT
DOWN
LED’s
DC
DC
(X10V)
Reset
Processor System
OBS,MIS,H,X,Y,Z…
Blanking
STROBE