I / O - Serial
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  Serial Pinouts :

The tables below show the different serial pinouts for Tyan motherboards with built-in I/O.

S2054 and S1836 system boards only

Other system boards  (DB-9P)

Signal

DB9

10 pin IDC

Signal

DB9

10 pin IDC

DCD

1

1

DCD

1

1

RX

2

6

RX

2

2

TX

3

2

TX

3

3

DTR

4

7

DTR

4

4

GND

5

3

GND

5

5

DSR

6

8

DSR

6

6

RTS

7

4

RTS

7

7

CTS

8

9

CTS

8

8

RI

9

5

RI

9

9

NC/KEY

NC/KEY

10

NC/KEY

NC/KEY

10

 

Pinout S1836/S2054 COM2

Pinout Standard COM2

1 1  /  2 3  /  3 5
4 7  /  5 9  / 
6 2
7
4  /  8 6  /  9 8

1 1  /  2 2  /  3 3
4 4  /  5 5  / 
6 6
7
7  /  8 8  /  9 9

Systemboard Header


S272x system boards

Signal

DB9 PIN (J33)

10 PIN header (J34)

DCD

1

1

RX

2

3

TX

3

5

DTR

4

7

GND

5

9

DSR

6

2

RTS

7

4

CTS

8

6

RI

9

8

NC/KEY

NC/KEY

10

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