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CN4: Serial ATA Connector
PIN
1
2
3
4
5
6
7
3.10 Serial Port Connectors
The HS-2613 offers NS16C550 compatible UARTs with Read/
Receive 16-byte FIFO serial ports and four internal 10-pin headers
and one RS-422/485 connector.
CN24/CN20/CN21/CN26: COM 1 ~ COM 4 Connector (5x2
Header)
PIN Description PIN Description
1
DCD
3
RXD
5
TXD
7
DTR
9
GND
CN18: RS-422/485 Connector (3x2 Header, COM 2)
PIN Description PIN Description
1
TX-
3
RX+
5
GND
NOTE:
The terminal resistance of RX & TX is set at 180
CN25: COM 2 use RS-232 or RS-422/485 Select
Options
RS-232 (default)
RS-485 by Auto (*1)
RS-485 by –RTS (*-1)
RS-422/485 Full Duplex (*2)
Description
GND
SATATXP
1
SATATXN
GND
SATARXN
SATARXP
GND
2
DSR
4
RTS
6
CTS
8
RI
10
N/C
2
TX+
4
RX-
6
N/C
Settings
Open
Short 1-2, 3-4, 5-7, 8-10
Short 1-2, 3-4, 7-9, 8-10
Short 1-2, 3-4, 6-8
7
9
1
10
2
5
1
6
2
.
Ω
9
1
10
2
13
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