Q1601 & Q1602 System Manual
V1.64
15
1
2
6
7
3
8
4
9
5
0V
GND
RTS
TXD
RXD
CTS
0V
Not Used
Not Used
1
2
6
7
3
8
4
9
5
TX 0V
GND
TX-
TX+
RX+
RX-
RX 0V
Not Used
Not Used
RS-232
RS-422
Figure 4: RS232/422 Connecting to the Router
The RS232 PC interface Cable
The cable between the PC and the router only needs to use TX, RX, and GND as shown
below.
The cable between a PC with a D-Type 9 way connector and the router:
1
2
6
7
3
8
4
9
5
TXD
RXD
GND
2
3
5
1
2
6
7
3
8
4
9
5
Cable 9-way to 9-way
RS-232
1
2
6
7
3
8
4
9
5
RXD
TXD
GND
7
3
6
1
2
6
7
3
8
4
9
5
Computer
D-9
Plug
D-9
Socket
Router
D-9
Socket
D-9
Plug
The cable between a PC with a D-Type 25 way connector and the router:
TXD
RXD
GND
3
2
7
1
2
6
7
3
8
4
9
5
Cable 25-way to 9-way
RS-232
1
2
6
7
3
8
4
9
5
RXD
TXD
GND
7
3
6
Computer
D-25
Plug
D-25
Socket
Router
D-9
Socket
D-9
Plug
1
2
14
15
3
16
12
25
13
24
1
2
14
15
3
16
12
25
13
24
Figure 5: RS232/422 Connecting to the Computer