DSC 3G8055AT

Alarm.com AT&T Communicator for Impassa

Average rating:

(based upon one review)

The DSC 3G8055AT is a 3G cellular communicator for use with the DSC Impassa Alarm System. The communicator will allow the system to connect with the AT&T 3G Cellular Network and access the Alarm.com interactive service platform. Get your Impassa monitored with the DSC 3G8055AT Communicator.
  • Alarm.com

This product is not sold by Alarm Grid at this time. As an alternative, we recommend:


The DSC 3G8055AT Alarm.com AT&T Communicator is perhaps the most important upgrade a user can make to their DSC Impassa Alarm System. A cellular communicator will allow the security system to receive cellular monitoring service and access the Alarm.com interactive service platform.

The DSC 3G8055AT will allow a DSC Impassa to connect with the AT&T 3G Cellular Network. Cellular connectivity is very important for an alarm system. This is because it offers consistently fast speeds and reliable communication. Cellular service is also the best way to keep a panel monitored when the power is out. All the user needs is a monitoring plan that includes cellular service, like the Alarm Grid Gold Plan.

The communicator is also necessary for using the Alarm.com service with the DSC Impassa. A user can access Alarm.com to arm and disarm their system, operate Z-Wave smart home devices, check the current status of security sensors and more. The communicator doubles as a Z-Wave controller for the Impassa, allowing a user to set up smart home devices with the system. However, local Z-Wave control is not possible with this set up, and all home automation will need to be conducted through Alarm.com.

Brand: DSC

Old 3G Unit
Submitted on 12/30/2020 Alarm Grid

The DSC 3G8055AT is a defunct AT&T 3G Communicator for a DSC Impassa Security System, Apart from the DSC Impassa being a relatively outdated security system that you should consider replacing if you own one, the DSC 3G8055AT is a 3G communicator, and it can no longer be activated for monitoring service. Additionally, any 3G8055AT unit that is currently activated will stop working once AT&T shuts down their 3G network. That is why there is a big scramble for users to upgrade to the LTE communicators, as those modules will be supported for a very long time. But we can't really recommend the DSC 3G8055AT, as it is an outdated communicator for an older security system. We only give the product a 3-Star rating.

There are some positive aspects for the DSC 3G8055AT. As a cellular communicator ir provides reliable connectivity, which is very important for trustworthy alarm monitoring service. And when active, it can connect with the Alarm.com platform so that you can control your system remotely. This is assuming that access to Alarm.com is included in your monitoring plan. But there are also some major downsides for the DSC 3G8055AT. As we mentioned earlier, the communicator cannot be activated for monitoring service due to the AT&T 3G Sunset. And once the network is shut down, the communicator will stop working entirely. There is also the consideration that the communicator must be installed inside the panel. But really, you wouldn't bother doing this anymore, as the communicator can no longer be activated. Another downside is that this communicator is cellular only, and it does not offer internet connectivity. While the DSC 3G8055AT was once a good communicator option, that is no longer the case. We give it a 3-Star rating.

Good: Reliable Connectivity, Alarm.com.

Bad: Cannot Be Activated, Will Stop Working w/ Network Shutdown, Requires Installation, No IP Connectivity

Bottom Line: 3 Stars

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