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DD48
Display Units
Series
Terminal Connection
Connection Diagram
(Name)
(Terminal No.)
19
Vcc
Regulating Circuit
Power
1
GND
7
BL
Latch
9
11
(–)
(Name)
(Terminal No.)
Vcc
19
Power
Regulating
GND
1
Circuit
Latch
9
A(2 )
17
0
B(2 )
15
1
Data
Input
C(2 )
13
2
11
D(2 )
3
7
DP
5
RBI
3
RBO
External Wiring
Positive Logic
[Contact Input (Digital Switch)]
Vcc(+)
Decimal
A
D
Power
NC
Data
24V DC
Input
NC
LATCH
GND (—)
Negative Logic
[Contact Input (Digital Switch)]
Decimal
Power
Data
Input
20
[Transistor Input]
Vcc(+)
Decimal
A
Tr
R1
D
NC
Power
Power
Data
24V DC
24V DC
Input
+24V
NC
LATCH
Tr
R1
GND (—)
When Tr is on,
output goes to H.
[Transistor Input]
Decimal
Power
Power
Data
Input
When Tr is on,
When Tr is off,
output goes to L.
output goes to L.
Terminal Arrangement
(Name) (Terminal No.)
19
Vcc
NC
17
NC
15
NC
13
+
(−)
11
24V DC
9
Latch
-
BL
7
NC
5
NC
3
GND
1
(Name) (Terminal No.)
Vcc
19
A (2 )
0
17
15
B (2 )
1
C (2 )
13
+
2
D (2 )
3
11
24V DC
Latch
9
-
DP
7
RBI
5
RBO
3
GND
1
Connector Terminal No.
(Binary/Decimal Display Unit Compatible)
Vcc(+)
Decimal
R1
Tr
A
D
NC
Data
Input
+24V
NC
R1
LATCH
Tr
GND (—)
When Tr is off,
output goes to H.
Decimal
Note: When connecting pull-up or pull-down resistors to
Data
Input
External
Power Supply
24V DC
Internal Input Circuit
Positive Logic
200 k
Data Input
12 k
GND
Negative Logic
24V DC
12 kΩ
200 kΩ
Data Input
GND
UP marking side
Connector Terminal No.
the external circuit, refer to the following table.
Type
R1
Binary/
2.2 kΩ to 8.2 kΩ
Decimal
(1/2W) (1/4W)
200 k
200 kΩ
R2
1 kΩ (1W)
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