
Network Controllers Manual
57
Application Drawings
Style 7 (Class A) 20mA Single Line Wiring with COMM-3S
LD6
LD4
LD5
P1
P2
P3
JP8
JP3
JP7
JP6
JP1
JP2
TB2
TB4
TB3
TB1
TB5
EARTH
COM
+24V
JP5
JP10
LD1
LD2
+
+
+
+
CH1 OU
T
CH
1
I
N
CH2 I
N
CH2 OUT
LD3
F
LA
S
H =
C
P
U C
O
M
M
P2
COMM-3S INSTALLED IN P3 OF:
CM1(N) w/SO OPTION
CM2(N) w/SO OPTION
RMDP-1N w/SO OPTION
RED STRIPE
TO CHANNEL 1
"DATA OUT"
TERMINALS OF
PREVIOUS DEVICE
TO CHANNEL 1
"DATA IN"
TERMINALS OF
NEXT DEVICE
TO CHANNEL 2
"DATA IN"
TERMINALS OF
NEXT DEVICE
TO CORRESPONDING
TERMINAL OF PS4/8B
TO CHANNEL 2
"DATA OUT"
TERMINALS OF
PREVIOUS DEVICE
[NWC-027.CDR]
1
1
1
1
1
2
2
Supervised and power limited.
SO-20D and COMM-3S installed in common enclosure.
NOTES:
Style 7 (Class A) 20mA Single Line Wiring, no COMM-3S
LD6
LD4
LD5
P1
JP8
JP3
JP7
JP6
JP1
JP2
TB2
TB4
TB3
TB1
TB5
EARTH
COM
+24V
JP5
JP10
LD1
LD2
+
+
+
+
CH1 OUT
CH1
I
N
CH2 IN
CH2 OUT
LD3
TO CHANNEL 1
"DATA OUT"
TERMINALS OF
PREVIOUS DEVICE
TO CHANNEL 1
"DATA IN"
TERMINALS OF
NEXT DEVICE
TO CHANNEL 2
"DATA IN"
TERMINALS OF
NEXT DEVICE
TO CORRESPONDING
TERMINAL OF PS4/8B
TO CHANNEL 2
"DATA OUT"
TERMINALS OF
PREVIOUS DEVICE
[NWC-028.CDR]
1
1
1
1
2
1
2
Supervised and power limited.
SO-20D and COMM-3S installed in common enclosure.
NOTES:
3
Remove SN-75176M RS-485 driver chip and
replace with header installed with red stripe
oriented toward notched end (pins 1 and 8) of socket.
P2
P3
RED STRIPE
3
3
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