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Theory of Operation
I-6 GB1400 User Manual
PROGRAM
DELAY
DATA IN
DATA MONITOR
ERROR INHIBIT
PROGRAM
DELAY
DATA INVERT
REF MODE
REF DATA IN
CLOCK
DIST
PROGRAMMABLE
ERROR/SYNC
THRESHOLD
CLOCK MONITOR
CLK
CLK
CLK
INTERNAL DATA PATTERN
CLK
MUX
PRN GEN
FEED
SLIP ERRORS
WORD GEN
ERROR
COUNTER
SYNCCLK CLK SYNC SLIP CLK
CLK
DATA
PATTERN SYNC
ERROR OUT
ERROR
OUT
FRONT
PANEL
2 x 24 LCD
DISPLAY
cpu
NON - VOLATILE
RAM
POWER
SUPPLY
CPU BUS
DC OUT
CLOCK
AC
INPUT
BATTERY
DATA THRESHOLD
REAR PANEL
REAR PANEL
50ohm
50ohm
-2V
-2V
AC
50ohm
-2V
GND
CLOCK BAR
LOAD
NETWORK
LOAD
NETWORK
AC
-2V
AC
50ohm
50ohm
-2V
AC
AC
REF THRESHOLD
+
-
+
-
+
-
D
Q
Q
_
D
Q
Q
_
GB1400 Rx
Figure I-2. Block Diagram - GB1400 RX