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
1820 19 15
17
16 610
SLOT 1
11
13
12
987
5
4
3
2114
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.
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