AMX NI-3101-SIG manual DB9 Device Port Connections and Wiring, Relay Port Connections and Wiring

Connections and Wiring

DB9 Device Port: Connections and Wiring

FIG. 7 shows the connector pinouts for the rear RS-232/RS-422/RS-485 (DB9) Device Ports. These ports support most standard RS-232 communication protocols for data transmission. This figure gives a visual representation of the wiring specifications for the RS-232/422/485 Device connectors.

5

4

3

2

1

9

8

7

6

Male

DB9 Serial Port pinouts (male connector)

RS-232	RS-422	RS-485
Pin 2: RX signal	Pin 1: RX -	Pin 1: A (strap to 9)
Pin 3: TX signal	Pin 4: TX +	Pin 4: B (strap to 6)
Pin 5: GND	Pin 5: GND	Pin 5: GND
Pin 7: RTS	Pin 6: RX +	Pin 6: B (strap to 4)
Pin 8: CTS	Pin 9: TX -	Pin 9: A (strap to 1)

FIG. 7 RS-232/422/485 DB9 (male) connector pinouts for the rear Device Ports

The table below provides information about the connector pins, signal types, and signal functions. This table’s wiring specifications are applicable to the rear RS-232/422/485 Device Port connectors on the NI-3101-SIG (Ports 1-6).

RS-232/422/485 Device Port Wiring Specifications

Pin	Signal	Function	RS-232	RS-422	RS-485
1	RX-	Receive data		X	X (strap to pin 9)
2	RXD	Receive data	X
3	TXD	Transmit data	X
4	TX+	Transmit data		X	X (strap to pin 6)
5	GND	Signal ground	X	X
6	RX+	Receive data		X	X (strap to pin 4)
7	RTS	Request to send	X
8	CTS	Clear to send	X
9	TX-	Transmit data		X	X (strap to pin 1)

When wiring the 422/485 connections, do NOT use pre-made 9-wire cable or connect the wire in the cable to any connection that will not be used by the DB9 serial port. Only use wiring that connects the needed pins.

Relay Port: Connections and Wiring

Up to 8 independent external relay devices may be connected to the Relay connectors on the device. Connectors labeled A are for common; B are for output.

Each relay is isolated and normally open.

A metal commoning strip is supplied with each device to connect multiple relays.

Relay connections

Use A for common and B for output (FIG. 8). Each relay is isolated and normally open. A metal connector strip is also provided to common multiple relays.

NI-3101-SIG Signature Series NetLinx Integrated Controller 11