BSMS Keyboard KBC
32 Bruker
BSMS/2 Mainframe Version 001
Figure 17: BSMS Keyboard Block Diagram
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
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