Crestron Home

Installing the driver using the Crestron Home Setup App the driver can be found at :

Drivers -> Security System -> Ajax

We have two other legacy Ajax extension drivers called Ajax Alarm and Ajax Power if you are looking to install these then look at the legacy documentation at Support Central.

Installation of this solution is a multistep process:

Step One

Add the Driver to a room and in the initial installation settings page enter the details you noted 🗒️✏️ during yout Ajax System configuration.

• Username
• Password
• Hub ID

Scroll down to verify the PINCODES used for arming and disarming.

The SIA Port can also be Setup at this stage but is set as default at 53002

Press ok to continue the installation.

If successful the driver will be installed and on connection to the Ajax cloud Groups setup in your Ajax System, will be shown on the Home page of your Crestron Home System. In addition you will see in the driver settings Monitored Areas and Monitored Zones in the Alarm Setup tabs of the Driver Settings.

NB: The Alarm driver is not visible in the room it is installed into.

If you don't see any Alarm Areas the re-open the Driver Settings then the installation was incomplete and you should re-open the driver settings and click on the LCD Driver App to review the installation report.

Crestron Home SIA ID Setup

For proper status updates, complete device ID configuration during commissioning.

Option 1: Name Devices Temporarily

1. In the Ajax App, add {Device No} to each device name
2. Load the driver → it reads and stores Device No
3. Once setup is complete, you can remove {Device No} from the names

Example: Water → Water {1}

Option 2: Manually Edit Config File

1. Download config from Crestron processor
2. Add missing Device No entries
3. Re-upload file
4. Reboot system

Config File Location:

/user/Data/ThirdParty/LCD/LCDCHOMEAJAXSECURITY/Configs/SiaData.json

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Reboot Required

• Reboot required:
  • After adding/modifying groups/devices
  • After changing settings

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Device Setup

• Ajax Devices appear as Zones in Crestron
• Report: Faulted, Tampered, Missing, OK, Low Battery
• All zones default to OK on first setup; previous fault states will not display until cleared

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Always Active Devices

• These devices trigger on all activations
• Note: May cause alarms even during entry/exit delays

Alarm Type Table

Alarm Type	Trigger Condition
Medical Alarm	Ajax Panic button
Fire Alarm	Fire Sensor
Alarm	Fault + Area Armed
Burglary Alarm	Fault (any state)

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Glossary

Ajax Term	Crestron Term
Device	Zone
Group	Area