User`s manual

VPort 251 User’s Manual Getting Started
RJ45 (10-pin) to DB9 (F) Cable Wiring
RJ45 Plug Pin 1
DCD
DSR
RTS
GND
TxD
RxD
CTS
DTR
DCD
DTR
CTS
GND
RxD
TxD
RTS
DSR
1
2
3
4/7
5
6
8
9
1
6
7
5
3
2
8
4
RJ45 (10-pin) to DB25 (F) Cable Wiring
RJ45 Plug Pin 1
DCD
DSR
RTS
GND
TxD
RxD
CTS
DTR
DCD
DTR
CTS
GND
RxD
TxD
RTS
DSR
1
2
3
4/7
5
6
8
9
8
6
4
7
2
3
5
20
10/100BaseT(X) Ethernet Port Connection
The 10/100BaseT(X) port located on the VPort 251’s front panel is used to connect to
Ethernet-enabled devices.
The following table shows pinouts for both MDI (NIC-type) ports and MDI-X (HUB/Switch-type)
ports. We also show cable wiring diagrams for straight-through and cross-over Ethernet cables.
(MDI) Port Pinouts (MDI-X) Port Pinouts 8-pin RJ45
Pin Signal
1 Tx+
2 Tx-
3 Rx+
6 Rx-
Pin Signal
1Rx+
2Rx-
3Tx+
6Tx-
18
2-16