MultiTransmitter

Module for connecting wired alarm to Ajax and managing security via the app

18 wired zones for connecting third-party detectors

Remote set up of connected detectors in the app

12 V⎓, 1 А power supply for connected detectors

Additional Ajax features

The regions of usage for Ajax can be expanded with the addition of perimeter IR detectors, home gas sensors, thermostats, flood sensors, and other devices. Utilize MultiTransmitter to connect them to a hub, then use the Ajax app to control the integrated security system.

safety via a smartphone

Users of the system can access automation scenes, data-rich notifications, and security control via the app with MultiTransmitter. Both on-site and remotely, an installer can configure the system or device via the PRO-app.

Radio communication without sacrificing consistency

A hub and MultiTransmitter communicate via the Jeweller radio protocol, which is encrypted. Ajax Systems created this TDMA technology to enable continuous device communication. Jeweller detects jamming attempts, switches to backup frequencies in the event of interference, and allows Ajax wireless devices to operate on battery power for years.

Safe from sabotage

If any of the connected devices experience a short circuit, a signal cable disconnect, or a tamper alarm, MultiTransmitter will alert you immediately. A power outage at the location won't be a problem either because the backup battery can keep devices powered for up to 4 days. The MultiTransmitter body itself has two tampers that react when the lid or integration module are removed from the surface.

A wired alarm's second chance at life

We are aware of how challenging it is to update old hard-wired alarm systems. Ajax allows you to upgrade without having to remove your existing equipment. It gives you the option to construct a modern advanced security system using already installed hard-wired equipment.

Automated security means less trouble

Utilize automation scenes to enable the security system to react to threats right away without calling the police. Ajax will arm itself according to a schedule, turn on the lights in response to a motion detection alarm, and turn off any potential sources of leaks. An outdated alarm system can now be integrated into a smart and safe property with MultiTransmitter.

Detailed alarms

With MultiTransmitter, you can identify each connected device's name, alarm type, and in which room they are. This makes notifications more informative – you know not just what happened, but also where it happened. Push notifications, SMS, and a proper code are used to send this information to the security company's monitoring station. There are a total of nine different alarm types available: tamper, malfunction, panic button, gas leakage, fire alarm, medical help, intrusion, and fire alarm (service event).

Protection without limitations

The radio network of the Ajax security system can reach up to 35 km when using radio signal extenders. However, using a MultiTransmitter to connect wired devices is the best option if some rooms are impenetrable to radio waves. Wires can be as long as 400 metres.

Professionally crafted, for professionals

We made sure that there would be no additional time or effort needed for the installation and setup process. MultiTransmitter connects to a hub in the app similarly to other Ajax devices by scanning a QR code. You do not need to be aware of resistor values while connecting connected devices due to the auto-sense feature. Additionally, if a device was improperly connected, the system will alert you.

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Tech Specs

Download Tech Specs

Compatibility

Compatible hub models
All Ajax hubs

The Hub control panel does not support the 2EOL and 3EOL connection types. Other hub models require the OS Malevich firmware version 2.13 or higher to support such connection types.

Compatible range extenders
All Ajax radio range extenders

Communication with a hub or range extender

Jeweller communication technology
Proprietary wireless communication technology to transmit alarms and events.

It features:

Two-way communication.
Advanced anti-sabotage.
Block encryption featuring a dynamic key.
Instant notifications.
Remote configuration via the Ajax apps.

Frequency bands
866.0 – 866.5 MHz
868.0 – 868.6 MHz
868.7 – 869.2 MHz
905.0 – 926.5 MHz
915.85 – 926.5 MHz
921.0 – 922.0 MHz
Depends on the sales region.

Maximum effective radiated power (ERP)
up to 20 mW

Radio signal modulation
GFSK

Radio communication range
up to 2,000 m

Between an integration module and a hub/range extender in an open space.

Calculate radio communication range

Encrypted communication
All the data stored and transmitted are protected by block encryption with a dynamic key.

Radio frequency hopping
To prevent interception and jamming.

Learn more

Wired devices connection

Number of zones
18 wired zones

Multiple devices can be connected to one zone. The number of connected devices depends on their power consumption.

Type of connection
NC, NO, EOL

MultiTransmitter with a firmware version lower than 2.13.

NC, NO, EOL, 2EOL, 3EOL

MultiTransmitter with a firmware version 2.13 and higher. The Hub control panel does not support the 2EOL and 3EOL connection types. Other hub models require the OS Malevich firmware version 2.13 or higher to support such connection types.

EOL resistance
from 1 kΩ to 7.5 kΩ with 100 Ω increment

MultiTransmitter with a firmware version lower than 2.13. EOL resistance is measured automatically in the Ajax PRO apps.

from 1 kΩ to 15 kΩ for each resistor, up to 30 kΩ of total resistance

MultiTransmitter with a firmware version 2.13 and higher. Resistance is measured automatically for each EOL resistor in the Ajax PRO apps.

Cable length
up to 400 m

When using a signal cable with a 0.22 mm² copper-clad aluminium conductor.

Operation mode
pulse, bistable

Adjusted by a PRO or user with admin rights in the Ajax app.

Event type
9 types of events for each wired zone

Intrusion
Fire
Medical help
Panic button
Gas alarm
Tamper alarm
Malfunction
Leakage
Custom

Adjusted by a PRO or user with admin rights in the Ajax app.

Recommendations

The device is powered from the 110–240 V~ mains and designed for indoor use only.

Anti-sabotage protection

Tamper alarm
Two tampers to detect the MultiTransmitter casing opening and alert about detachment from the wall.

Learn more

Protection against spoofing
with the integration module authentication

Communication loss detection
within 36 seconds

Between a hub or range extender and MultiTransmitter. The detection time depends on the Jeweller or Jeweller/Fibra settings.

Instant detection of wired connection loss, short circuits, and malfunctions
when using EOL/2EOL/3EOL connection type

Depends on the connection type.

Power supply

MultiTransmitter power supply
100–240 V~, 50/60 Hz

MultiTransmitter backup power supply
12 V⎓, up to 7 Ah capacity with a full charge cycle of up to 30 hours

The backup battery is not included in the set.

Connected devices power supply
10.5–15 V⎓, up to 1 A of total maximum current consumption

Four power lines powered by MultiTransmitter: one for fire detectors, and three for other devices.

Casing

Dimensions
192 × 238 × 100 mm

Weight
805 g

Operating temperature range
from −10°C to +40°C

Operating humidity
up to 75%

Protection class
IP40

Colours

Black/White

Complete set

MultiTransmitter board
Casing
Power cable
12 V⎓ battery connection cable
Installation kit
Quick Start Guide

Warranty

24 months

Learn more

Compliance with standards