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Autoscope RTMS Sx-300 Interface Panels
RTMS Sx-300 User Guide
©2014 Image Sensing Systems Inc.
B-12
DIN Rail Power and RS-485 Interface Panel (P/N A600-1100)
Figure B-10: Power and RS-485 Interface Panel Wiring 
RS-485 DB9 Female Connector
(to PC or TMC comm link) 
DSP60-24
DC Pwr
0V
G N L
UNPROTECTED
POWER /
PROTECTED
G N L
1
2
3
4
5
6
7
8
9
PROTECTED
UNPROTECTED
1 2
3
4 S
1 2 3 4 S
Backplate/DIN rail mus
be connected to earth 
ground at install time.
NOTE:
110 VAC
Power
Protect
Ckt Bkr
(2 Amp)
24 VDC
Power
  RS-485
Protection
Note, must provide earth ground 
conductor from utility.
Hot
Neutral
Ground
110 VAC Power Cable
MS Cable
Shield
Table B-12: MS Cable Wiring for Power and RS-485 Interface Panel
MS Cable Pin
RS-485 
Protect Pin
24 VDC Power Pin
Signal Name
g
N/A
DC GND
f
N/A
+
+24 VDC
X
1
N/A
TxD+
V
2
N/A
TxD–
U
S
N/A
SGND
T
3
N/A
RxD–
Y
4
N/A
RxD+
Shield
N/A
Earth GND