3.10 Serial Port Connectors

The HS-7238 offers one NS16C550 compatible UARTs with Read/Receive 16-byte FIFO serial ports and two internal 10-pin headers.

CN5: COM1 Connector (5x2 Header)
PIN Description PIN Description

1

DCD0

2

DSR0

3

RXDD0

4

RTS0

5

TXDD0

6

CTS0

7

DTR0

8

RI0

9

GND

10

N/C

DCD0

1

2

DSR0

RXDD0

3

4

RTS0

TXDD0

5

6

CTS0

DTR0

7

8

RI0

GND

9

10

N/C

CN4: COM2 Connector (5x2 Header)

PIN Description PIN Description

1

DCD1

2

DSR1

3

RXDD1

4

RTS1

5

TXDD1

6

CTS1

7

DTR1

8

RI1

9

GND

10

N/C

DCD1

1

2

DSR1

RXDD1

3

4

RTS1

TXDD1

5

6

CTS1

DTR1

7

8

RI1

GND

9

10

N/C

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