End-of-life product: 2022-04-05

End-of-life product: 2022-04-05

Universal Communicator ET083

A cost-effective solution that provides GSM/GPRS connectivity for any non-GSM security alarm panel. Available in 2G or 3G mobile network versions.

Fast and Easy Installations

You only need alarm panel to power up the ET083. No router configuration is needed as well. Ability to configure the communicator in Eldes Utility will make the installation 2 times faster! Maintain ET083 from your chair – configure and update its firmware remotely!


Useful Add-ons Included

ET083 provides GSM/GPRS and LAN* connectivity for third-party alarm panels. Multiple ways of connection allows the effective usage of the product: Serial Cable, KEYPAD BUS and PSTN/RING TIP interface. ET083 can be easily connected to almost any monitoring station using a free EGR100 software. It supports 5 main protocols (SIA IP, Kronos, Cortex SMS, EGR100 and Contact ID). 3 on-board inputs and 3 outputs can be used for connecting wired sensors, home appliances or alarm panel’s PGM outputs.

*LAN connectivity can be enabled by using ELAN3-ALARM

Communicator, tested from A to Z

The compatibility of ET083 was tested with the majority of the most popular security systems and mobile operators from all over the world. You will enjoy the smooth and reliable functionality.

ET083 application areas

Third party panel GSM/GPRS/LAN communicator

End-user friendly

Remote arm/disarm of alarm system and fully customizable SMS notifications

Can be used in a backup or primary role adding 2G/3G, SMS, ethernet communication methods

Extra communication channel for more safety without the need to replace non-GSM alarm panel

Remote reboot of the “frozen” systems, such as computer network or a server

Frequently asked questions (FAQ)

How to restore default parameters?

1. Unplug the USB cable.
2. Power down the device.
3. Short-circuit (connect) the DEF pins.
4. Power up the device for 7 seconds.
5. Power down the device.
6. Remove the short-circuit from DEF pins.
7. Parameters restored to default.

Is it possible to configure ET083 remotely?

Yes, you can connect remotely using our free Eldes Utility Tool software. Download it here: https://eldesalarms.com/product/eldes-utility

Instructions how to connect remotely, you will find on Eldes Utility Tool.

It is also possible to configure device via SMS commands.

Can I use ET083 without SIM card?

Yes, ET083 can operate without SIM card. It will be possible to control device via PSTN line only.

How can I update firmware (FW) for ET083 remotely?

Send SMS message to SIM card that is inserted to ET083 with text:

XXXX FOTA (example: 1111 FOTA) (SMS can contain upper or lower case letters)

XXXX – Your SMS password.

System will inform you automatically via SMS message when FW will be updated. This can take up to 20 minutes depending on GPRS connection speed.

How can I update firmware (FW) for ET083 locally?

You can download latest ESIM384 firmware from https://eldesalarms.com/product/et083/#firmware . Please make sure you are logged in to our webpage to be able download files. When file is downloaded and saved to your PC use following instruction:

1. Power down the device.
2. Short-circuit (connect) the DEF pins.
3. Connect the device via USB cable to the PC.
4. The new window must pop-up where you will find the .bin file. Otherwise open Computer and look for Boot Disk drive.
5. Delete the .bin file found in the drive.
6. Copy the new firmware .bin file to the very same window.
7. Unplug the USB cable.
8. Remove the short-circuit from DEF pins.
9. Power up the device.
10. Firmware updated.

Will settings of ET083 disappears after firmware update via FOTA?

Settings of ET083 will not disappear after firmware update via FOTA.

Do I need to connect ET083 to external power supply for configuration?

For ET083 configuration you can connect USB cable only. It will supply enough power.

For normal work please be sure to connect ET083 to external power supply.

When using Advanced Kissoff Mode, what are positions of JP8 and JP9?

In case you are using Advanced Kissoff Mode, take off both JP8 and JP9 PINs.

Which SIA IP protocol versions are supported with ET083?

ET083 supports DC-09-2007 and DC-09-2013 versions of SIA IP protocols.

Why both tampers are inactive?

ET083 tampers are disabled by default. You can activate notifications about tamper alarm/restore using our free Eldes Utility Tool software:

  • Go to “Users”,
  • select user that is going to get events via SMS,
  • turn ON “Send SMS Notifications about System Events”,
  • turn ON “Tamper Alarm/Restore”.

Download Eldes Utility Tool here: https://eldesalarms.com/product/eldes-utility

Can I use PSTN as backup communication channel to send events to Monitoring Station?

Yes, it can be used as backup communication channel, but only with Advanced Kissoff Mode.

What are the prices of ELDES production?

To get the prices of the devices please check ELDES disributors’ Internet sites. Otherwise, feel free to contact out partners in your country/city by telephone or e-mail.

Can I purchase ELDES devices directly from you?

You can purchase ELDES production only from our distributors. If you have any ideas or intentions to create a new nonstandart device or suggestions how to improve our current devices contact us directly or our partners in your country.

Where can I purchase ELDES devices if your distributors are not available in my country?

Feel free to contact us.


Phone usersup to 5 (system reports to 10 users by SMS/Call)
ARC communication methodsUp to 6
Backup communication methods to ARCUp to 5
Alarm panel wiringPSTN (RING/TIP terminals)
KeyBus or Serial data interfaceKeyBus or Serial data interface
Supply voltage10-24V 300mA max
Peak currentUp to 700mA
Current used in idle stateUp to 120mA
2G/3G modem frequencyEU-band model: 2G 900/1800MHz, 3G 900/2100MHz bands
US-band model: 2G 850/1900MHz, 3G 850/1900MHz
Multi-band model: 2G 850/900/1800/1900MHz, 3G 800/850/900/1900/2100MHz
Number of “low” level (negative) digital inputs3
Input typedry contact
Number of outputs3
Maximum commuting output values3 x 30V; 50mA
Generated phone line valuesVoltage: 25V; current: 25mA; impedance: 270Ω
Dimensions129x86x18mm (5.08×3.39×0.71in)
Operating temperature range-20…+55 °C (-4… +131°F)
Humidity0-90% RH @ 0… +40°C (0-90% RH @ +32… +104°F) (non-condensing

Where to buy?