15
3.10 Serial Port Connectors
The HS-4701 offers two NS16C550 compatible UARTs with
Read/Receive 16-byte FIFO serial ports and four internal 10-pin
headers. There is one RS-422/485 connector.
CN11~CN14: COM1~COM4 Connectors (5x2 Header)
CN9: RS-422/485 Connector
PIN Description PIN Descriptio
n
1
TX-
2
TX+
3
RX+
4
RX-
5
GND
6
RTS-
7
RTS+
8
CTS+
9
CTS-
10
N/C
2
4
6
8
10
1
3
5
7
9
TX+
RX-
RTS-
N/C
CTS+
TX-
RX+
GND
CTS-
RTS+
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
11
DCD1
12
DSR1
13
RXDD1
14
RTS1
15
TXDD1
16
CTS1
17
DTR1
18
RI1
19
GND
20
N/C
21
DCD2
22
DSR2
23
RXDD2
24
RTS2
25
TXDD2
26
CTS2
27
DTR2
28
RI2
29
GND
30
N/C
31
DCD3
32
DSR3
33
RXDD3
34
RTS3
35
TXDD3
36
CTS3
37
DTR3
38
RI3
39
GND
40
N/C
2
1
40
39
DSR1
RTS1
CTS1
N/C
RI1
DCD1
RXDD1
TXDD1
GND
DTR1
DSR0
RTS0
CTS0
N/C
RI0
DCD0
RXDD0
TXDD0
GND
DTR0
DSR3
RTS3
CTS3
N/C
RI3
DCD3
RXDD3
TXDD3
GND
DTR3
DSR2
RTS2
CTS2
N/C
RI2
DCD2
RXDD2
TXDD2
GND
DTR2
COM1
COM2
COM3
COM4
Summary of Contents for HS-4701
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Page 10: ...4 1 3 Board Dimensions ...
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