Specifications

Little Board/P5i Technical Manual
2–12
Table 2–7 Serial Port Connectors (J11, J13)
Ports Pin
Signal
Name Function In/Out
DB25
Pin
DB9
Pin
Serial 1
(J11)
or
Serial 3
(J13)
1
2
3
4
5
6
7
8
9
10
DCD
DSR
RXD
RTS
TXD
CTS
DTR
RI
GND
N/A
Data Carrier Detect
Data Set Ready
Receive Data
Request To Send
Transmit Data
Clear to Send
Data Terminal Ready
Ring Indicator
Signal Ground
No Connection
IN
IN
IN
OUT
OUT
IN
OUT
IN
-
-
8
6
3
4
2
5
20
22
7
-
1
6
2
7
3
8
4
9
5
-
Serial 2
(J11)
or
Serial 4
(J13)
11
12
13
14
15
16
17
18
19
20
DCD*
DSR
RXD
RTS
TXD
CTS
DTR
RI
GND
N/A
Data Carrier Detect*
Data Set Ready
Receive Data
Request To Send
Transmit Data
Clear to Send
Data Terminal Ready
Ring Indicator
Signal Ground
Key Pin
IN
IN
IN
OUT
OUT
IN
OUT
IN
-
-
8
6
3
4
2
5
20
22
7
-
1
6
2
7
3
8
4
9
5
-
* W8 jumper OFF = DCD; W8 jumper ON = +5V for powering an Ampro RS485
Adapter board (Serial 4 only).
Table 2–8 J11 and J13 Mating Connector
Connector Type Mating Connector
RIBBON 3M 3421-7600
Latching Clip 3505-8020
DISCRETE WIRE MOLEX HOUSING 22-55-2202
PIN 16-02-0103