Table 3-10: com3 to com6 connector pinouts, Figure 2-2, Below – IEI Integration ECW-281B_B2-D525 User Manual
Page 39: Figure 2-2: ecw-281b/b2-d525 front panel, 2 rear panel
ECW-281B/B2-D525 Embedded System
Page 26
PIN NO.
DESCRIPTION
PIN NO.
DESCRIPTION
1
DATA CARRIER DETECT (DCD3)
2
DATA SET READY (DSR3)
3
RECEIVE DATA (RXD3)
4
REQUEST TO SEND (RTS3)
5
TRANSMIT DATA (TXD3)
6
CLEAR TO SEND (CTS3)
7
DATA TERMINAL READY (DTR3)
8
RING INDICATOR (RI3)
9 GND
10
GND
11
DATA CARRIER DETECT (DCD4)
12
DATA SET READY (DSR4)
13
RECEIVE DATA (RXD4)
14
REQUEST TO SEND (RTS4)
15
TRANSMIT DATA (TXD4)
16
CLEAR TO SEND (CTS4)
17
DATA TERMINAL READY (DTR4)
18
RING INDICATOR (RI4)
19 GND
20 GND
21
DATA CARRIER DETECT (DCD5)
22
DATA SET READY (DSR5)
23
RECEIVE DATA (RXD5)
24
REQUEST TO SEND (RTS5)
25
TRANSMIT DATA (TXD5)
26
CLEAR TO SEND (CTS5)
27
DATA TERMINAL READY (DTR5)
28
RING INDICATOR (RI5)
29 GND
30 GND
31
DATA CARRIER DETECT (DCD6
32
DATA SET READY (DSR6)
33
RECEIVE DATA (RXD6)
34
REQUEST TO SEND (RTS6)
35
TRANSMIT DATA (TXD6
36
CLEAR TO SEND (CTS6)
37
DATA TERMINAL READY (DTR6
38
RING INDICATOR (RI6)
39 GND
40 GND
Table 3-10: COM3 to COM6 Connector Pinouts
3.3.10 Serial Port Connector (COM 2)(RS-232, RS-422 or RS-485)
CN Label:
COM2
CN Type:
14-pin header (2x7)
CN Location:
See
755
Figure 3-11
CN Pinouts:
See
755
Table 3-11
The 14-pin serial port connector connects to the COM2 serial communications channels.
COM2 is a multi function channel. In default mode COM2 is an RS-232 serial