APPENDIX A
TABLE OF SIGNALS
Signal
Meaning Explanation
ANS
A uto m atic Noise
Suppressor
Rejects superimposed harmonic noise
A T T attenuator
Attenuates the incom ing signal am plitude by a factor of
10 or 100
C LK
clock Clock to co n trol LSI80-SS (connected to N X)
CLS
closure Comm and signal to close the gate
CNT count
Counting signal from INPU T C board to m other board
DB
data bus 4-bit data bus
D IV divider
DRST divid er reset
ERST external reset
Reset for the peripheral circuits of LSI
EVL
envelope
Envelope signal fo r in put C burst
EXI external input
Data in p u t to extend the digits fo r LSI
EXG
external gate High-speed gate signal for LSI
FL T filter
Low-pass filte r to reject noise on low-frequency
measu rement
HV high voltage
High-voltage signal fo r TR 5820
IN A In p u t A
INB Inp u t B
IND
indicator Blinks to indicate the triggered state
INH
in h ib it
Panel switch operation inhibited (remote)
LCRY log carry
Carry signal to co ntrol logarithm ic signal
LOG
logarithm ic signal
10n period signal (to generate gate time)
MKSP
mask stop Indicates te rm inatio n o f masking
M K T
masking tim e Mask tim e signal (by charging C-R)
MKST mask start
Indicates start of masking
NX 2n o f STD
Clock to co n trol LSI80-SS
OFW
overflow
C o nd ition in excess o f the display capacity
REF
reference
DC voltage as a standard fo r incoming signal
RE FA reference A
DC voltage as a standard for IN PU T A
REFB
reference B
DC voltage as a standard for INP UT B
REM remote
Rem otely con trolled state via G PIB-compatible
external c on trolle r
R TL
return line
Signal connected to panel switch
SCA
scaler
SCL
scan line
Panel switch read signal
A - l
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