Describe the synchronous and asynchronous cables used by AR routers

AR routers support the following three types of 8AS cables:

1. Straight-through cables, which apply to financial scenarios where dumb terminals are used
X1 Signal Direction X2 (Female connector)
1 DCD �? 1
2 DTR �? 2
3 DSR �? 3
4 GND - 4
5 RXD �? 5
6 TXD �? 6
7 CTS �? 7
8 RTS �? 8
2. Asynchronous serial cables, which apply to common scenarios
X1 (Male connector) Signal Direction X2 (Female connector)
1 DCD �? Blue
2 DTR �? Orange
3 DSR �? White and brown
4 GND - White and blue
5 RXD �? Green
6 TXD �? White and green
7 CTS �? Brown
3. Adapter cables, which are used together with the preceding two types of cables and apply to telecommunication or common scenarios
X1 (Male connector) Signal Direction X2 (Female connector)
1 DCD �? Blue
2 DTR �? Orange
3 DSR �? White and brown
4 GND - White and blue
5 RXD �? Green
6 TXD �? White and green
7 CTS �? Brown
8 RTS �? White and orange
4. Self-made cables, which are used in serial port server scenarios
X1 Signal Direction X2 (Female connector)
1 DCD �? 4
2 DTR �? 7
3 DSR �? 2
4 GND - 5
5 RXD �? 3
6 TXD �? 6
7 CTS �? 1
8 RTS �? 8

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