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Robustel R3000 LG User Guide
RT_UG_R3000 LG_v.1.0.4 19 Jul., 2018 16/133
Chapter 2
Hardware Installation
2.1
PIN Assignment
PIN
Debug RS-232 RS-485
Direction
1
CR
--
--
Gateway
Device
2
CT
--
--
Gateway
Device
3
GND
GND
GND
--
4
--
TXD
Data+(A)
Gateway
Device
5
--
RXD
Data+(B)
Gateway
Device
6
--
RTS
--
Gateway
Device
7
--
CTS
--
Gateway
Device
PIN
Polarity
8
Positive
9
Negative
10
GND
PIN
DI
Direction
1
DI1+
Gateway
Device
2
DI1-
Gateway
Device
3
DI2+
Gateway
Device
4
DI2-
Gateway
Device