Crestron DIN-AP3MEX Installation & Operation Manual Download Page 1

DIN-AP3MEX

DIN Rail 3-Series

®

 Automation Processor with infiNET EX

®

 & ER Wireless Gateway

Installation & Operation Guide

Hardware Hookup

Make any necessary connections to the device, and apply power after all connections 
have been made.

NOTE

:  When making connections to the DIN-AP3MEX, observe the following points:

  •  Use Crestron power supplies for Crestron equipment.
  •  The included cable cannot be extended.

Hardware Connections for the DIN-AP3MEX (Front View)

Configure the Control System

The control system can be configured using Crestron Toolbox or the built-in, web-based 
setup tool.

Crestron Toolbox

Use Crestron Toolbox to establish communication with and to configure the control 
system. For details, refer to the embedded Crestron Toolbox help file.

Web-Based Setup Tool

  1.  Use Crestron Toolbox to set the time and the time zone. For details, refer to the 

embedded Crestron Toolbox help file.

  2.  Open the Internet Explorer

®

 web browser and enter the IP address of the 

DIN-AP3MEX. The control system’s splash page is displayed.

NOTE

:  The web-based setup tool is accessible only from Internet Explorer.

NOTE

:  If a security warning is displayed, click

 Install

 to continue.

DIN-AP3MEX Splash Page

Description

The DIN-AP3MEX is a Crestron

®

 3-Series Control System

®

 automation processor that is 

designed for DIN rail-mounting applications. The device includes a built-in infiNET EX

®

 

and ER wireless gateway, high-speed Ethernet, Cresnet

®

 network support, and BACnet 

network/IP support. DIN rail mounting allows for configuring complete automation 
systems using the DIN-AP3MEX along with additional Crestron and third-party DIN 
rail-mountable devices.

Installation

CAUTION

:  This equipment is intended for indoor use only. Mount the DIN-AP3MEX in 

a well-ventilated area. The ambient temperature must be 0 ˚C to 40 ˚C (32 ˚F to 104 ˚F). 
The relative humidity must be 10% to 90% (noncondensing).

CAUTION

:  To prevent overheating, do not operate the DIN-AP3MEX in an area that 

exceeds the environmental temperature range listed above. Consider using forced air 
ventilation to reduce overheating. Also use caution if installing the control system in a 
closed or multiunit rack assembly, since the operating ambient temperate of the 
environment may be greater than the room ambient temperature. Contact with thermal 
insulating materials on all sides of the unit should be avoided.

NOTES

:  Observe the following guidelines:

  •  Install and use the DIN-AP3MEX in accordance with appropriate electrical codes 

and regulations.

  •  A licensed electrician must install the DIN-AP3MEX.
  •  When installing in an enclosure, group high-voltage devices separately from 

low-voltage devices.

NOTE

:  Before using the DIN-AP3MEX, ensure that the device is using the latest 

firmware. Check for the latest firmware for the DIN-AP3MEX at 
www.crestron.com/firmware. Load the firmware onto the device using
Crestron Toolbox™ software.

Preparing and Connecting Wires

When making connections, strip the ends of the wires approximately 7/16 in (11 mm).
Use care to avoid nicking the conductors. Tighten the connector to 5 in-lb
(0.5 to 0.6 Nm). The wire gauge should be 14 to 26 AWG.

Installing the DIN-AP3MEX

Use the DIN-AP3MEX in a well-ventilated area. The venting holes should not be 
obstructed under any circumstances. The DIN-AP3MEX is designed for installation in a 
DIN rail. Refer to the following diagram when installing.

Installing the DIN-AP3MEX

Additional Resources

Visit the product page on the Crestron website (www.crestron.com) 
for additional information and the latest firmware updates. Use a QR 
reader application on your mobile device to scan the QR image.

Hardware Connections for DIN-AP3MEX (Bottom View)

NOTE

:  Ensure that the unit is properly grounded by connecting the chassis ground lug 

to an earth ground (building steel).

NOTE

:  To prevent overheating, do not operate this product in an area that exceeds 

the environmental range stated in the “Installation” section.

  3. Click 

Setup

 to display the DIN-AP3MEX setup menu. The DIN-AP3MEX 

Setup 

menu displays the IP address, hostname, and MAC address of the device. The 
screen also allows access to various setup and programming screens.

Use the following procedure to install the DIN-AP3MEX:
  1.  Use a flat object (such as a flat-head screwdriver) to pull the DIN rail release tab 

downward.

  2.  Place the top of the DIN-AP3MEX’s rail mount over the top of the DIN rail.
  3.  Tilt the bottom of the DIN-AP3MEX toward the DIN rail until it snaps into place.

NOTE

:  When mounting DIN rail products, use a flat-head screwdriver to pull the 

DIN rail release tab while snapping the device onto the DIN rail.

To remove the DIN-AP3MEX from the DIN rail, use a small, flat object (such as a flat-head 
screwdriver) to pull the DIN rail release, and then tilt the bottom of the DIN-AP3MEX 
away from the DIN rail.

NOTE

:  Certain third-party DIN cabinets provide space for an informational label 

between each DIN rail row. Crestron’s Engraver software (version 4.0 or later) can 
generate appropriate labels for all Crestron DIN rail products.

Mounting the Antenna

It is advised that the DIN-AP3MEX’s antenna should be located outside of the DIN 
cabinet (or similar mounting enclosure). Use the Crestron ANT-EXT-10 (sold separately) to 
mount the antenna outside of the enclosure:
  1.  Remove the protective dust cover from the connector at the top of the 

ANT-EXT-10.

  2.  Attach the connector at the end of the ANT-EXT-10’s attached cable to the 

DIN-AP3MEX’s antenna connector.

  3.  Attach the DIN-AP3MEX’s antenna to the connector at the top of the ANT-EXT-10, 

and then mount the ANT-EXT-10 in an appropriate location outside of the 
enclosure.

NOTE

:  For antenna placement and orientation guidelines, refer to the

Best Practices for Installation and Setup of Crestron RF Products (Doc. 6689) at 
www.crestron.com/manuals.

  4.  From the DIN-AP3MEX’s 

Setup

 menu, click the following options to configure the 

control system:

 • 

Ethernet Setup

 configures the DIN-AP3MEX’s Ethernet settings and displays 

DHCP, hostname, IP address, subnet mask, default router, domain, and MAC 
address settings. In the 

Ethernet Setup

 menu, there are additional options:

 

• Click 

Advanced Settings

 to specify DNS servers, web server settings, and 

SSL settings.

 

• Click 

MyCrestron Dynamic DNS

 to configure the myCrestron.com Dynamic 

DNS service.

 

• Click 

Ethernet Diagnostics

 to test the Ethernet communications.

 

• Click 

Reboot

 to reboot the DIN-AP3MEX.

 • 

Application Setup

 selects the programs to be loaded on start-up and the 

controls that programs are running.

 • 

Diagnostics

 displays information about the connected devices, hardware 

configuration, and error logs.

 • 

About

 displays firmware information.

Click the back button (      ) to return to the previous screen.

Assign the RF Channel

Set the RF channel of the DIN-AP3MEX prior to operation. The DIN-AP3MEX can operate 
on channels 11 through 26. Crestron recommends using RF channel 15 or 20. The 
default RF channel is 15.
For optimum performance when installing a DIN-AP3MEX in a Wi-Fi

®

 network 

environment, do not set the RF channel within a Wi-Fi channel band. Refer to the 
information below when choosing the RF channel in a Wi-Fi environment:
  •  Gateway channels 11 through 14 are within the Wi-Fi channel 1 band.
  •  Gateway channel 15 is adjacent to Wi-Fi channels 1 and 6.
  •  Gateway channels 16 through 19 are within the Wi-Fi channel 6 band.
  •  Gateway channel 20 is adjacent to Wi-Fi channels 6 and 11.
  •  Gateway channels 21 through 24 are within the Wi-Fi channel 11 band.
  •  Gateway channel 25 is adjacent to Wi-Fi channel 11.
  •  Gateway channel 26 is neither within nor adjacent to any Wi-Fi band.

NOTE

:  Crestron’s RF devices are divided into two categories: infiNET EX devices and 

Crestron Extended Range (ER) devices. infiNET EX devices automatically set their RF 
channel assignment to match the gateway’s channel, whereas ER devices must have 
their RF channel manually assigned to match the gateway’s channel.

Use Crestron Toolbox software to set the DIN-AP3MEX’s RF channel. From the 
“System Info” window, select 

Functions > infiNET EX Gateway

 from the menu bar. 

Refer to the Crestron Toolbox software help file for details.

LAN:

10 Base-T / 100 Base-TX

Ethernet to LAN

Hardware Connections for DIN-AP3MEX (Top View)

NET (24 Y Z G):

To any Cresnet

®

network device

COMPUTER:

To computer

console

MEMORY:

For SD card

DIN rail

release tab

DIN rail

(not included)

DIN-AP3MEX

Rail mount

(top)

DIN-AP3MEX Setup Menu

Ground

Antenna:

To included antenna
or antenna extender

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