Com2 Port Connection - Adtech ADT-RC400 User Manual

6.2 COM2 Port Connection

In order to facilitate the maintenance of robot drive system, a COM2 communication
port is provided by QC400. COM2 port is provided with a standard DB9 head terminal,
which is no need to connect a voltage switch board. Each pin of COM2 is defined as follows:
Each pin functions and instructions as shown in the table：
Pin number Signal name
1
2
3
4
5
6
7
8
9
10
RX1
TX1
TX0
RX0
485_A
485_B
Figure 6-3 Schematic diagram of COM2
Table 6-2 COM2 terminal signal description
RX1
TX0
RX0
Suspended
GND
TX1
Suspended
485_A
485_B
PE
1
6
10 PE
2
7
3
8
4
9
5
Explain
First signal receiving end
The 0 signal sending end
The 0 signal receiving end
Suspended
Ground
First signal sending end
Suspended
Communication interface when using 485
Shielding wire