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17 PRINTER SELECT LN# 18 GROUND

19 GROUND 20 GROUND

21 GROUND 22 GROUND

23 GROUND 24 GROUND

25 GROUND

3.4 Serial Ports

The SSC-5x86HVGA offers two high speed NS16C550 compatible

UARTs with Read/Receive 16 byte FIFO serial ports.

• CN10 : Serial Port DB-9 Connector( ACE0 )

PIN NO. DESCRIPTION

1 DATA CARRIER DETECT (DCD)

2 RECEIVE DATA (RXD)

3 TRANSMIT DATA (TXD)

4 DATA TERMINAL READY (DTR)

5 GROUND (GND)

6 DATA SET READY (DSR)

7 REQUEST TO SEND (RTS)

8 CLEAR TO SEND (CTS)

9 RING INDICATOR (RI)

• CN6 : Serial Port 10-pin Header( ACE1)

Pin No. Description Pin No. Description

1 DCD 2 DSR

3 RXD 4 RTS

5 TXD 6 CTX

7 DTR 8 RI

9 GND 10 NC

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 30 31

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