Connections and Wiring
27
NI-2100/3100/4100 - Hardware Reference Guide
LAN (Ethernet/RJ-45 Port): Connections and Wiring
NOTE:
NI-x100 Controllers feature an Auto MDI/MDI-X LAN port. This provides the option of using either a standard (straight
through), or a crossover LAN cable to communicate with a PC - both cable types will work.
The following table lists the pinouts, signals, and pairing for the LAN connector.
FIG. 17 diagrams the RJ-45 pinouts and signals for the LAN RJ-45 connector and cable.
LAN LEDs
LAN Ports Used By the Integrated Controller
LAN RJ-45 Pinouts and Signals
Pin Signals
Connections
Pairing
Color
1
TX +
1 --------- 1
1 --------- 2 Orange-White
2
TX -
2 --------- 2
Orange
3
RX +
3 --------- 3
3 --------- 6 Green-White
4
no connection
4 --------- 4
Blue
5
no connection
5 --------- 5
Blue-White
6
RX -
6 --------- 6
Green
7
no connection
7 --------- 7
Brown-White
8
no connection
8 --------- 8
Brown
FIG. 17
RJ-45 wiring diagram
FIG. 18
LAN LEDs
LAN Port Descriptions
Port type
Description
Standard Port #
FTP
The on-board Master has a built-in FTP server.
21/20 (TCP)
SSH
The SSH port functions using the same interface as Telnet but over a secure shell where it uses SSL as
a mechanism to configure and diagnose a NetLinx system.
This port value is used for secure Telnet communication.
Note: SSH version 2 is only supported.
22 (TCP)
Telnet
The NetLinx Telnet server provides a mechanism to configure and diagnose a NetLinx system.
For maximum flexibility, the Master can be configured to utilize a different port than 23, or disable
Telnet completely from either Telnet or the Program Port located on the rear of the Master itself. Once
disabled, the only way to enable Telnet again is from the Master’s Program port.
23 (TCP)
HTTP
The Master has a built-in web server that complies with the HTTP 1.0 specification and supports all of
the required features of HTTP v1.1.
This port is used for unsecure HTTP Internet communication between the web browser’s UI and the
target Master.
80 (TCP)
HTTPS/SSL
This port is used by a web browser to securely communicate between the web server UI and the target
Master. This port is also used to simultaneously encrypt this data using the SSL certificate information
on the Master as a key.
443 (TCP)
SPD - Speed LED
connection speed is 100 Mbps
and turns Off when speed is
lights (yellow) when the
L/A - Link/Activity LED
lights (green) when the
LAN cables are
connected and terminated
10 Mbps.
correctly.
