EtherHub 1500 System User’s Guide
DB25 RS232 to RJ-45 Converter Connector Pin Assignment
Description
DTR (Data Terminal Ready)
RxD (Received Data)
TxD (Transmitted Data)
SG (Signal Ground)
RI (Ring Indicator)
CTS
RTS
DCD (Data Carrier Detected)
DSR (Data Set Ready)
Mapping
1
2
3
4
5
6
7
8 NC
EH1502s DB25
Connector
20
3
2
7
22
5
4
8
6
Connection from EH1502s
EH1502’s
Serial Port
1DCD
2RXD
3TXD
4DTR
5SGND
6DSR
7RTS
8CTS
9RI
< |
| ||
RXD | > |
| |
|
| ||
DSR | > |
| |
|
| ||
| |||
DTR |
|
| |
|
| ||
CTS | > |
| |
|
| ||
< |
| ||
RI |
| ||
|
|
PC’s
COM Port
1
3
2
6
5
4
8
7
9
Pin Assignments |