Com 1 and com 2 ports – NEXCOM NISE 3640M User Manual
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Copyright © 2013 NEXCOM International Co., Ltd. All Rights Reserved.
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NISE 3640M Series User Manual
Chapter 2: Jumpers and Connectors
COM 1 and COM 2 Ports
Connector type: DB-9 port, 9-pin D-Sub
2x10 20-pin header, 1.25mm pitch
Connector location: CN4
COM 1
COM 2
Pin
Definition
Pin
Definition
1
SP1_DCD
2
SP2_DCD
3
SP1_TXD
4
SP2_TXD
5
SP1_RTS
6
SP2_RTS
7
SP1_RI
8
SP2_RI
9
COM56_GND
10
COM56_GND
11
SP1_RXD
12
SP2_RXD
13
SP1_DTR
14
SP2_DTR
15
SP1_DSR
16
SP2_DSR
17
SP1_CTS
18
SP2_CTS
19
COM56_GND
20
COM56_GND
MH1
COM56_GND
MH2
COM56_GND
1
1
6
6
5
5
9
9
1
19
2
20
1
2
19
20
RS232
RS422
RS485
Pin
Definition
Pin
Definition
Pin
Definition
1
SP1_DCD
1
SP1_TX-
1
SP1_DATA-
2
SP1_RXD
2
SP1_TX+
2
SP1_DATA+
3
SP1_TXD
3
SP1_RX+
3
NC
4
SP1_DTR
4
SP1_RX-
4
NC
5
GND
5
GND
5
GND
6
SP1_DSR
6
SP1_RTS-
6
NC
7
SP1_RTS
7
SP1_RTS+
7
NC
8
SP1_CTS
8
SP1_CTS+
8
NC
9
SP3_RI
9
SP1_CTS-
9
NC
RS232
RS422
RS485
Pin
Definition
Pin
Definition
Pin
Definition
1
SP2_DCD
1
SP2_TX-
1
SP2_DATA-
2
SP2_RXD
2
SP2_TX+
2
SP2_DATA+
3
SP2_TXD
3
SP2_RX+
3
NC
4
SP2_DTR
4
SP2_RX-
4
NC
5
GND
5
GND
5
GND
6
SP2_DSR
6
SP2_RTS-
6
NC
7
SP2_RTS
7
SP2_RTS+
7
NC
8
SP2_CTS
8
SP2_CTS+
8
NC
9
SP3_RI
9
SP2_CTS-
9
NC
COM1 Connector Pin Definition
COM2 Connector Pin Definition