Ampro Corporation 486E Ports Pin Signal Name Function In/Out DB25, Pin DB9

Little Board™/486e Technical Manual
2–14
Table 2–8. 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
-
Table 2–9 shows the manufacturer’s part number fo r ribbo n cab le ma ting con nector s to J11 and
J13.
Table 2–9. J11 and J13 Mating Connector
Connector Type Mating Connector
Ribbon 3M 3421-7600
Discrete Wire MOLEX Housing 22-55-2202
Pin 16-02-0103