B7A
B7A
42
32-point Terminals
B7A-T3E3/-T3E8
(Input, Active Low)
Internal circuit
Transmission
line
SIG1
SIG2
+
_
12 to
24 VDC
+
_
Connector
IN00
IN31
to
Terminal
board
_
•
SIG1:
IN00 to IN15
SIG2:
IN16 to IN31
Connector
Terminal
board
Terminal No.
Terminal
Terminal No.
Terminal
Terminal No.
Terminal
1
IN00
15
IN12
29
–
2
IN01
16
IN13
30
+
3
IN02
17
IN14
31
IN24
4
IN03
18
IN15
32
IN25
5
IN04
19
–
33
IN26
6
IN05
20
+
34
IN27
7
IN06
21
IN16
35
IN28
8
IN07
22
IN17
36
IN29
9
–
23
IN18
37
IN30
10
+
24
IN19
38
IN31
11
IN08
25
IN20
39
–
12
IN09
26
IN21
40
+
13
IN10
27
IN22
14
IN11
28
IN23
Note:
Do not short-circuit the SIG terminal with a positive or negative power supply terminal, other-
wise the internal elements of the B7A will be damaged and no transmission will be possible.