SLK-S502 Serial server instruction manual
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5
Figure 3
category
parameter
Description
POWER
V+
Power input 9-28V
V-
RS458
B
RS458 Negative end
A
RS458 Positive end
RS232
TXD
RS232 Signal sending end
RXD
RS232 Signal receiving end
GND
Ground terminal end
Din
DIN1
Switching value input end
DIN2
DIN3
DIN4
12VDD
High level output of switching value
Dout
DO1
Switching value output end
COM1
Switching value output public end
DO2
Switching value output end
COM2
Switching value output public end