Copyright © 2009 NEXCOM International Co., Ltd. All Rights Reserved.
18
Chapter 2: Jumpers and Connectors
NISE 3140, NISE 3140E, NISE 3140P2, NISE 3140P2E User Manual
COM1 (RS232) labelled “A“ on DB9 Cable Connector
DB44 Pin #
DB9 Pin #
Def.
DB44 Pin #
DB9 Pin #
Def.
1
1
DCD1
2
2
RXD1
3
3
TXD1
4
4
DTR1
5
5
GND
6
6
DSR1
7
7
RTS1
8
8
CTS1
9
9
RI1
10
GND
COM2 (RS232) labelled “B“ on DB9 Cable Connector
DB44 Pin #
DB9 Pin #
Def.
DB44 Pin #
DB9 Pin #
Def.
11
1
DCD2
12
2
RXD2
13
3
TXD2
14
4
DTR2
15
5
GND
16
6
DSR2
17
7
RTS2
18
8
CTS2
19
9
RI2
20
GND
COM3 (RS232) labelled “C“ on DB9 Cable Connector
DB44 Pin #
DB9 Pin #
Def.
DB44 Pin #
DB9 Pin #
Def.
21
1
DCD3
22
2
RXD3
23
3
TXD3
24
4
DTR3
25
5
GND
26
6
DSR3
27
7
RTS3
28
8
CTS3
29
9
RI3
30
GND
COM2 (RS422) labelled “B“ on DB9 Cable Connector
DB44 Pin #
DB9 Pin #
Def.
DB44 Pin #
DB9 Pin #
Def.
11
1
TXD-
12
2
TXD+
13
3
RXD+
14
4
RXD-
15
5
GND
16
6
RTS-
17
7
RTS#
18
8
CTS+
19
9
CTS-
20
GND
COM4 (RS232) labelled “D“ on DB9 Cable Connector
DB44 Pin #
DB9 Pin #
Def.
DB44 Pin #
DB9 Pin #
Def.
31
1
DCD4
32
2
RXD4
33
3
TXD4
34
4
DTR4
35
5
GND
36
6
DSR4
37
7
RTS4
38
8
CTS4
39
9
RI4
40
GND
41
NC
42
NC
43
NC
44
NC
Note: Pin 39 is defined as an external power source, which can be selected for 5V
or 12V using JP10.
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