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Need help?Do you have a question about the AJAX MultiTransmitter and is the answer not in the manual?
Details the external physical parts of the MultiTransmitter, including screw points and battery cavity.
Identifies the components on the MultiTransmitter's circuit board, like power terminals and buttons.
Explains the left-hand and right-hand terminals for connecting detectors and power supply.
Explains the meaning of different LED light indications for device status.
Explains how the MultiTransmitter functions within the Ajax security system.
How alarms and events are transmitted from the MultiTransmitter to the monitoring station.
Step-by-step guide for connecting the MultiTransmitter to the Ajax hub and initial setup.
Explains the various states and parameters of the MultiTransmitter as displayed in the Ajax app.
How to view the operational status and malfunctions of detectors connected via the MultiTransmitter.
Configuration options for individual wired detectors and devices connected to the MultiTransmitter.
Step-by-step guide on how to physically connect wired detectors and devices to the MultiTransmitter.
How to perform tests to ensure the MultiTransmitter and connected devices are functioning correctly.
Recommendations for optimal placement and physical installation of the MultiTransmitter unit.
Covers routine maintenance, avoiding installation pitfalls, and understanding malfunction notifications.
Provides detailed technical data including power, range, dimensions, and supported types.
Lists the items included in the complete set and warranty information for the product.
Details the external physical parts of the MultiTransmitter, including screw points and battery cavity.
Identifies the components on the MultiTransmitter's circuit board, like power terminals and buttons.
Explains the left-hand and right-hand terminals for connecting detectors and power supply.
Explains the meaning of different LED light indications for device status.
Explains how the MultiTransmitter functions within the Ajax security system.
How alarms and events are transmitted from the MultiTransmitter to the monitoring station.
Step-by-step guide for connecting the MultiTransmitter to the Ajax hub and initial setup.
Explains the various states and parameters of the MultiTransmitter as displayed in the Ajax app.
How to view the operational status and malfunctions of detectors connected via the MultiTransmitter.
Configuration options for individual wired detectors and devices connected to the MultiTransmitter.
Step-by-step guide on how to physically connect wired detectors and devices to the MultiTransmitter.
How to perform tests to ensure the MultiTransmitter and connected devices are functioning correctly.
Recommendations for optimal placement and physical installation of the MultiTransmitter unit.
Covers routine maintenance, avoiding installation pitfalls, and understanding malfunction notifications.
Provides detailed technical data including power, range, dimensions, and supported types.
Lists the items included in the complete set and warranty information for the product.
The MultiTransmitter is an integration module designed to connect third-party wired detectors and devices to the Ajax security system. It features 18 wired zones and is equipped with two tampers to protect against dismantling. The module is powered from the mains (100–240 V AC) and can also run on a 12 V backup battery, which can supply 12 V power to connected detectors.
The MultiTransmitter operates as part of the Ajax security system by connecting via the Jeweller secure radio communication protocol to the hub. The hub communication range is up to 2,000 meters, provided there are no obstacles. If jamming or interference is detected, the system indicates a "high level of interference at Jeweller frequencies," and this event is transmitted to the central monitoring station of the security company and system users. The device connects to the hub and is configured through Ajax apps on iOS, Android, macOS, and Windows. All alarms and user events are reported by push notifications, SMS, and calls if enabled. The Ajax security system can connect to the CMS and transmit alarms to the monitoring station in Sur-Gard (ContactID) and SIA protocol formats.
The integration module receives information about alarms and the triggering of detector tampers via wires connected to its terminals. It can be used to connect various types of third-party wired detectors and devices, including panic and medical alarm buttons, indoor and outdoor motion detectors, and detectors tracking opening, vibration, breaking, fire, gas, and leakage. The type of device is indicated in the zone settings. The text of notifications about alarms and events of the connected device, as well as event codes transmitted to the Central Monitoring Station (CMS) of the security company, depend on the selected device type.
The MultiTransmitter supports 18 wired zones. The number of connected devices depends on their power consumption, with a total maximum current consumption of 1 A for all connected devices or detectors. Supported connection types include Normally Open (NO), Normally Closed (NC), EOL (NC with resistors), and EOL (NO with resistors). The integration module has three power supply lines of 12 V: one dedicated line for fire detectors and two for other devices. After a fire alarm, fire detectors require a power reset to restore normal operation. Therefore, the fire detectors' power supply should only be connected to a dedicated line. Connecting other detectors and devices to the power terminals of fire detectors may lead to false alarms or incorrect operation of the devices.
To connect the MultiTransmitter, first install the Ajax app and create an account, then add a hub to the app and create at least one room. Ensure the hub is on and has access to the internet (via Ethernet cable, Wi-Fi, or mobile network). The hub logo on the front panel should light up white or green if connected to the network. Ensure the hub is disarmed and does not start updates by checking its status in the app. Only users with administrator rights can add the MultiTransmitter to the hub.
To connect the MultiTransmitter:
If the connection fails, disconnect MultiTransmitter for 5 seconds and try again. If the integration module has already been assigned to another hub, turn off the integration module and follow the standard addition procedure. The connected integration module will appear in the app, in the hub's list of devices. Updating device statuses in the list depends on the ping time defined in Jeweller settings, with a default value of 36 seconds.
The MultiTransmitter LED indicator may light up white, red, or green, depending on the status of the device. The LED indicator is not visible when the body lid is closed. The status of the device can be found in the Ajax app.
If MultiTransmitter is not assigned to the hub or has lost connection with it, the integration module will not give an indication of the battery status or the presence of external power supply.
To connect a wired detector or device:
If the detector or device requires 12 V power supply for operation, it can be connected to the power terminals of the corresponding MultiTransmitter zone. Separate terminals are provided for fire detectors. Do not connect the external power supply to the detector power terminals, as this may damage the device.
To add a wired detector or device:
MultiTransmitter functionality tests do not begin immediately but not later than over a single ping period of the hub detector (36 seconds with the standard settings of the hub). You can change the ping period of devices in the Jeweller menu of the hub settings. Tests available in the device settings menu (Ajax app → Devices → MultiTransmitter → Settings) include:
When selecting MultiTransmitter placement, consider its distance from the hub and the presence of obstacles between them that impede the passage of the radio signal, such as walls, inter-floor constructions, or large-sized objects located in the room. Be sure to check the signal strength at the installation site. If the signal strength is low (a single bar), a stable operation of the security system cannot be guaranteed. At the very least, relocate the device as repositioning even by 20 cm can significantly improve the signal reception. If poor or unstable signal strength is still reported after the relocation of the device, use the ReX radio signal range extender of the security system. When choosing the installation location, consider the distance between the integration module and wired devices or detectors — the cable length should be sufficient for connection. The maximum length of the signal cable for connecting a device or a detector is 400 meters (cable material is copper-plated aluminum, cross-section is 0.22 mm²). The value may vary if a different type of cable is used. No tests were conducted on other types of cables.
To install the MultiTransmitter:
Do not install the integration module:
Maintenance involves regularly checking the functionality of the integration module. Clean the body from dust, cobwebs, and other contaminants as they emerge. Use a soft dry cloth that is suitable for equipment care. Do not use any substances containing alcohol, acetone, gasoline, and other active solvents to clean the device.
MultiTransmitter can report malfunctions to the central monitoring station of the security company, as well as to users through push notifications and SMS.
In case of alarms from the fire detectors connected to MultiTransmitter, the window prompting of the need to reset the alarms is displayed in the Ajax app. If the detectors are not reset after the fire alarm, they will not respond to the next fire, as they will remain in alarm mode. There are two ways to reset fire detectors:
General| Number of wired zones | 18 |
|---|---|
| Tamper protection | Yes |
| Communication Protocol | Jeweller |
| IP Rating | IP50 |
| Compatibility | Ajax hubs, Hub Plus, Hub 2, Hub 2 Plus, ReX |
| Types of supported contacts | NO, NC |
| Power Supply | 12 V DC |
| Operating Temperature | -10°C to +40°C |
| Operating humidity | Up to 75% |
| Communication range with hub | Up to 2, 000 m in an open space |
| Frequency | 868.0–868.6 MHz |
