Connections and Wiring
30
NI-2100, NI-3100, NI-4100 Hardware Reference Guide
NetLinx Control Card Slot Connector (NI-4100 only)
FIG. 16 shows the 20-pin (male) connector that provides connection to the NetLinx Control Cards.
LAN (Ethernet/RJ-45 Port): Connections and Wiring
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
FIG. 16
NetLinx Control Card 20-pin connector
18
20 19
15
17 16
6
10
SLOT 1
11
13 12
9 8 7
5 4 3 2 1
14
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.
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
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.
