National Instruments NI UES-3880 manual 10/100BaseTX Ethernet Port Connection

Top View

Front View

STEP 1: Insert the negative/positive DC wires into the V-/V+ terminals.

STEP 2: To keep the DC wires from pulling loose, use a small flat-blade screwdriver to tighten the wire-clamp screws on the front of the terminal block connector.

STEP 3: Insert the plastic terminal block connector prongs into the terminal block receptor, which is located on the NI UES-3880’s top panel.

ATTENTION

Before connecting the NI UES-3880 to the DC power inputs, make sure the DC power source voltage is stable.

10/100BaseT(X) Ethernet Port Connection

The 10/100BaseT(X) ports located on the NI UES-3880’s front panel are used to connect to Ethernet-enabled devices.

Below we show pinouts for both MDI (NIC-type) ports and MDI-X (HUB/Switch-type) ports, and also show cable wiring diagrams for straight-through and cross-over Ethernet cables.

MDI Port Pinouts

Pin	Signal
1	Tx+
2	Tx-
3	Rx+
6	Rx-

MDI-X Port Pinouts

Pin	Signal
1	Rx+
2	Rx-
3	Tx+
6	Tx-

8-pin RJ45

18

RJ45 (8-pin) to RJ45 (8-pin) Straight-Through Cable Wiring

Switch Port

RJ45 Connector

Tx+

Tx-

Rx+

Rx-

Straight-Through Cable

RJ45 Plug Pin 1

Cable Wiring

3

6

1

2

	NIC Port
	RJ45
	Connector
3	Rx+
6	Rx-

1Tx+

2Tx-

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