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65
Transistor Remote I/O Terminals with 3-tier I/O Terminal Blocks
Section 4-4
The following diagram shows the internal circuits for the DRT1-ID16T-1
Remote Input Terminal.
Wiring
The following diagram shows the wiring of the DRT1-ID16T Remote Input Ter-
minal.
V
−
CANL
Physi-
cal
layer
Photo-
coupler
Photo-
coupler
Photocoupler
Photocoupler
Internal
circuitry
DRAIN
CANH
V+
SOURCE
24 V DC
SOURCE
24 V DC
DC-DC
converter
(Isolated)
V1 24 V DC
V2 24 V DC
G1
V1
Input (0 to 7)
G1
G2
V2
Input (8 to 15)
G2
+
−
I/O power
supply
I/O power
supply
Internal circuits
power supply
−
+
7
V1
G1
1
V1
G1
0
V1
G1
V1
+
−
G1
−
+
15
V2
G2
9
V2
G2
8
V2
G2
V2
G2
−
+
Black (white)
Brown (red)
Blue (black)
Blue (black)
Brown (white)
Black (white)
Brown (red)
Blue (black)
Blue (black)
Brown (white)
3-wire sensor with
NPN output
(photoelectric or
proximity sensor)
2-wire sensor
(e.g., limit switch)
3-wire sensor with
NPN output
(photoelectric or
proximity sensor)
2-wire sensor
(e.g., limit switch)
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