OPTION
07
REMOTE PROGRAMWIING/BCD OUTPUT
This option makes it possible to use a conventional printer or other readout device, and remotely program
the functions that are normally done on the front panel of the counter.
SPECIFICATIONS
BCD OUTPUT
FORMAT 11 digits plus sign in parallel
"0" STATE 0.4 Volts at 4mA
"1" STATE 2.7 Volts at -400pA
NEGATIVE REF. Ground
POSITIVE REF.
+5
Volts at 2K
C2
Source Impedance
PRINT COMMAND 20
ps
wide TTL Low level logic signal
INHIBIT INPUT 2 to 50 Volts High level logic signal
REMOTE PROGRAMMING
INPUT LOADING
1 Low power Shottky TTL load plus
10K pull up to
+5
Volts
FUNCTIONS All front panel controls except: Power
ONIOFF, Sample rate, Clear Dis-
play, and test functions greater than 01.
OUTPUT LEVEL
Refer to
"0" State and "1" State for BCD.
OPERATION
BCD OUTPUT
This binary-coded decimal
(BCD) output (plus sign information) represents any numerical data that would
normally be displayed by the eleven digits on the front panel of the counter. When the information being
displayed represents the frequency alone the minus sign refers to the frequency. When the information
being displayed represents frequency and power the minus sign refers to the power.
A 20 microsecond print command is provided to indicate when the data is valid. An inhibit command
is
provided that will prevent the data from being altered.
BCD OUTPUT PIN CONNECTIONS
PIN FUNCTION PIN FUNCTION PIN FUNCTION PIN FUNCTION
-
1 10'
A
16
lo8
B 3 1
lo3
D
46
lo0
C
2 10' B 17
lo9
A
32
lo4
c
47 100
D
3
lo2
A
lo9
B
33
lo4
D
48
Print Command
l8
10'0
A
4
lo2
B 34
lo5
c
49
Minus Sign
l9
10'0B
5
lo3
A
20 35
lo5
D
50
Ground
6
lo3
B
21 100
A
36
lo6
C
7
lo4
A
22
Inhibit
37 106
D
8 104
B 23
100 B
38 107
C NOTE
9
lo5
A
24
-Ref.
39 107
D
10 105
B
25
+Ref.
40
lo8
C The
100
bit is the least significant digit,
and
corresponds to the
1
Hz
output.
11
lo6
A
26 10'
C
41
lo8
D
12 106 B 27 10'
D
42
lo9
c
28
lo2
C
lov
D
A,
B,
C, and
D
are the
1, 2, 4,
and
8
bits
13 107
A
43
14
lo7
B
29
102
D
44
10lOC
of each binary coded decimal output
15 108
A
30 103
C
45 1010
D
digit.
Scans by ArtekMedia © 2007
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