SystemBase Portbase-3010 - Serial Loopback Cable Pinouts; LAN Cable Pinouts

Portbase User Guide
Numbers in parenthesis indicate DB-25 connector pin number.
3. Serial Loopback Cable Pinouts
The loopback connector can be used to verify if the Portbase hardware is all right by performing an external
loopback test. The loopback connector is plugged in the Portbase’s RJ45 serial port to make sure that the
Portbase serial port operates normally.
Portbase-3010 (RS232/422)
Loopback
Portbase
DB-9
Portbase-3020/3040(RS232/422)
Loopback
Portbase
RJ-45
4. LAN Cable Pinouts
LAN Cross Cable
Portbase PC
RJ-45 RJ-45
LAN Direct Cable
Portbase HUB
RJ-45 RJ-45
TX+ 1
TX- 2
RX+ 3
4
5
RX- 6
7
8
TX+ 1
TX- 2
RX+ 3
4
5
RX- 6
7
8
CTS 8
DCD 7
GND 6
TXD 5
DSR 4
RXD 3
DTR 2
RTS 1
TX+ 1
TX- 2
RX+ 3
4
5
RX- 6
7
8
RX+ 3
RX- 6
TX+ 1
4
5
TX- 2
7
8
CTS 8
RTS 7
DSR 6
GND 5
DTR 4
TXD 3
RXD 2
DCD 1
100