
User manual
9
8
CTS
9
—
DB9 Male
(
RS-232
)
RS-485
Serial port
:
PIN
RS-485
1
D+
2
D-
3
/
4
/
5
/
RS-422
Serial port
:
PIN
RS-422
1
T+
2
T-
3
GND
4
R+
5
R-
RS-485/422
2.7 LED Indicator
LED
Indicator
Description
PWR1
ON
P1 connection regularly
OFF
P1 Power supply have no connection or unwonted
PWR2
ON
P2 connection regularly
OFF
P2 Power supply have no connection or unwonted
Run
ON/OFF
Device unwonted
Flashing
Device working steadily
Link/ACT
ON
Established effective network connection