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Quick Start Guide

IRX-SM+

 Swivel-Mount Remote IR Sensor

Overview

The IRX-SM+ (FIG. 1) is a remote IR sensor that works with the Axcess 
AXC-RCVI card, AMX Television Managers, and MX8 / MX16 Relay Receivers to 
remotely control IR devices. The IRX-DM+ (

FG455-01

) is in a swivel-mount 

enclosure for use in wall or ceiling installations. The IRX-SM+ works with AMX 
38 kHz or 455 kHz IR transmitters.

Note: The IRX-DM+ UniMount version is also available for US-style 
single-gang enclosure installations

       

Wiring and Installation

Set the receive frequency, AXlink device number and IR validation level before 
installing the sensor. FIG. 2 illustrates the location of key components on the 
IRX-SM+ circuit board

.

Setting the Receive Frequency

Use the jumper pin on the corner of the circuit board to set the receive frequency. 
FIG. 3 illustrates the configuration of the jumper.  

Note: The unit will not operate until JP1 is configured for either 38 kHz 
or 455 kHz.

To receive 38 kHz, position the JP1 jumper on pins 1 and 2 (closer to 

the Phoenix connector). 

To receive 455 kHz (

default setting

), position the JP1 jumper on pins 

2 and 3 (away from the Phoenix connector).  

Wiring the IR Sensors

The IRX-SM+ uses a 4-pin Phoenix connector for power and data. If the distance 
between the receiver and Central Controller exceeds power consumption limits, 
you can connect a local 12 VDC power supply to the Phoenix connector.

Preparing Captive Wires

You will need a wire stripper and a flat-blade screwdriver to prepare the captive 
wires:

1.

Strip .25 inch (6.35 mm) of wire insulation off all wires.

2.

Insert each wire into the appropriate opening on the connector according to 
the wiring diagrams in this section. 

3.

Turn the flat-head screws clockwise to secure the wire in the connector.

Note: Do not over-torque the screw. Doing so can bend the seating pin.

Wiring Guidelines

The IRX-SM+ requires 12 VDC power to operate properly. T

he power is supplied 

by the AMX system's connection cable. The maximum wiring distance 
between the Central Controller and the receiver is 

200 feet (60.96 m)

Connection and Wiring

Wiring the IRX-DM+ or IRX-SM+ to the AMX IR Receiver

Wire the IR sensor to the AMX IR receiver as shown in FIG. 4

.

You can wire up to eight IR sensors in parallel to an AXC-RCVI, AMX Television 
Manager, MX8, MX16, or NI-700. For additional information, refer to the reference 
guides or instruction manuals for those AMX products.

Checking IR Data Status

Locate the red IR Data LED on the front of the unit. Point the system's AMX 
transmitter towards the sensor and press a button. The IR Data LED lights when 
the unit receives data. 

If the IR Data LED on the unit does not light:

Verify that the transmit LED on the transmitter lights when you press a but-

ton.

Check the wiring to the unit.

Verify that the transmitter frequency is properly configured.

FIG. 1  

IRX-SM+ Swivel-mount IR sensor

IRX-SM+ Specifications

Dimensions (HWD):

3.30" x 2.00" x 2.60" (83.80 mm x 50.80 mm x 66.00 mm) 

Receive Frequencies:

38 / 455 kHz (user-selectable)

Mounting:

Mounts into most US-style single-gang enclosures.

Weight:

6.8 oz. (190.4 grams)

Power Consumption:

25 mA

FIG. 2  

Location of key components on the IRX-SM+ circuit board

FIG. 3  

Receive frequency jumper settings

IR Sensor

IR Data LED

Swivel mount bracket

Housing

Circuit

assembly

board

IR Data
LED

IR 
Sensor

4-pin Phoenix 
Connector

Receive Frequency
Jumper Pin (JP1)

Set Jumper JP1 to:

Position 1/2 for 38 kHz
Position 2/3 for 455 kHz

4

1

3

2

1

Pin 3

Pin 2

Pin 1

455 kHz

38 kHz

FIG. 4  

Wiring the IR sensor 

PWR

GND

IN

AUX

IRX-SM+ #2

To the external

Top view

AUX OUT

OUT

GND

+12 VDC

sensor input

connector

AUX OUT

OUT

GND

+12 VDC

Top view

Top view

or
IRX-DM+ #2

IRX-SM+ #1
or
IRX-DM+ #1

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