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CHAPTER 6
OPTIONAL INTERFACE BOARDS
6-1. BCD Output
The optional interface boards shown in this chapter can be factory-attached
by the manufacturer at your request.
Specifications
Input
TTL voltage level, negative logic
(74LS19 or equivalent)
Output
TTL voltage level, positive logic
(74LS04 or equivalent)
Pin No. Signal Pin No. Signal
1 BCD output: 10
-4
(1) 19 BCD output: 10
0
(4)
2 BCD output: 10
-4
(2) 20 BCD output: 10
0
(8)
3 BCD output: 10
-4
(4) 21 BCD output: 10
1
(1)
4 BCD output: 10
-4
(8) 22 BCD output: 10
1
(2)
5 BCD output: 10
-3
(1) 23 BCD output: 10
1
(4)
6 BCD output: 10
-3
(2) 24 BCD output: 10
1
(8)
7 BCD output: 10
-3
(4) 25 BCD output: 10
2
(1)
8 BCD output: 10
-3
(8) 26 BCD output: 10
2
(2)
9 BCD output: 10
-2
(1) 27 BCD output: 10
2
(4)
10 BCD output: 10
-2
(2) 28 BCD output: 10
2
(8)
11 BCD output: 10
-2
(4) 29 BCD output: 10
3
(1)
12 BCD output: 10
-2
(8) 30 BCD output: 10
3
(2)
13 BCD output: 10
-1
(1) 31 BCD output: 10
3
(4)
14 BCD output: 10
-1
(2) 32 BCD output: 10
3
(8)
15 BCD output: 10
-1
(4) 33 Strobe output signal
(STROBE OUT)
16 BCD output: 10
-1
(8) 34 External trigger enable
input (ETE IN)
17 BCD output: 10
0
(1) 35 External trigger input
(EXT TRIG IN)
18 BCD output: 10
0
(2) 36 GND
Pin Assignment
+5V
3K
6.2K
I C
I N
Ω
Ω
I C
OUT
H
I
1
Z
ls3100_65_75.p65 08.10.1, 10:57 AM68
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