AMX NI-4000, NI-3000, NI-2000 Input/Output I/O Connections and Wiring, Relay connections

Connections and Wiring

A metal commoning strip is supplied with each Integrated Controller to connect multiple relays.

Relay connections

Use A for common and B for output (FIG. 14). Each relay is isolated and normally open. A metal connector strip is also provided to common multiple relays.

RELAYS (Port 8)

8 7 6 5 4 3 2 1

B A B A B A B A B A B A B A B A

NI-4000/NI-3000 relay connector

configuration (Port 8)

FIG. 14 RELAY connector (male) (NI-4000/3000/2000)

RELAYS (Port 4)

4 3 2 1

B A B A B A B A

NI-2000 relay connector

configuration (Port 4)

Input/Output (I/O) Connections and Wiring

The I/O port responds to either switch closures, voltage level (high/low) changes, or can be used for logic-level outputs.

		I / O (Port 17)
+12V	8	7	6	5	4	3	2	1	GND

NI-4000/NI-3000 I/O connector

configuration (Port 17)

FIG. 15 INPUT/OUTPUT connector (male)

I / O (Port 9)

+12V 4 3 2 1 GND

NI-2000 I/O connector configuration (Port 9)

You can connect up to eight devices to the I/O connectors on the NI-4000/3000 (four on the NI-2000) (FIG. 15). A contact closure between GND and an I/O port is detected as a Push. When used for voltage inputs, the I/O port detects a low (0-1.5 VDC) as a Push, and a high (3.5-5 VDC) signal as a Release. When used for outputs, the I/O port acts as a switch to GND and is rated at 200 mA @ 12 VDC. The PWR pin (+12 VDC @ 200 mA) is designed as a power output for the PCS2 or VSS2 (or equivalent). The GND connector is a common ground and is shared by all I/O ports. The following table lists the wiring specifications for the I/O connectors.

+12V - 12 VDC power output for PCS Power Current Sensors, VSS2 Video Sync Sensors, or similar I/O-type equipment

I/O 1 - 8 - Up to 8 I/O ports (NI-4000/3000) and up to 4 I/O ports (NI-2000) (see table below)

GND - Common ground shared with I/O ports 1 - 8 (refer to the following chart)

NetLinx Integrated Controllers 25