5 Connector description
Kontron User's Guide DIMM-PC/ETH+COM
13
5.2
Ethernet Controller Pin Descriptions
The following table lists pin descriptions for the Ethernet controller.
Pin Signal Name
Function
In / Out
44
*TXD+
10BASE-T Transmit Differential Output
46
*TXD-
10BASE-T Transmit Differential Output
48
**RXD+
10BASE-T Receive
Differential Input
50
**RXD-
10BASE-T Receive
Differential Input
52
LNLED
Line LED indicator
Output
54
LKLED
Link LED indicator
Output
Notes: *TXD+ and TXD- are differential output pairs that drive the 10Mb/s Manchester-encoded data to the 10BASE-T
transmit lines.
**RXD+ and RXD- are differential input pairs that receive encoded data from the 10BASE-T receive lines.
5.3
Serial Port Pin Descriptions
The following pin descriptions apply to COM3 and COM4.
COM3: COM4
Pin Name Description
Pin Name
Description
38 RXD3
Receiver serial data input
22 RXD4/DI Receiver serial data input
36 TXD3
Transmit serial data output
20 TXD4/DO Transmit serial data output
34 CTS3# Active low clear to send input
18 CTS4#
Active low clear to send input
32 RTS3# Active low request to send output
16 RTS4#
Active low request to send output
30 DSR3# Active low data set ready input
14 DSR4#
Active low data set ready input
28 DTR3# Active low data terminal ready output 12 DTR4#
Active low data terminal ready output
26 DCD3# Active low data carrier detect input
10 DCD4#
Active low data carrier detect input
24 RI3#
Active low ring indicator input
8
RI4#
Active low ring indicator input
