COVID-19 Alert To DIYers: COVID-19 has severely affected supplier inventory. Product availability, at the moment, is in flux. If you order today, depending on the product, there may be a significant delay in shipping it to you. We apologize for any delays, and assure you that products will be shipped as soon as we can get them. Before COVID, we had significant stock of nearly every popular product that we sell. But demand has outpaced our supplier's ability to meet it, and has exhausted the stock we had purchased to meet increased demand during the government-mandated lockdowns. If you need the product right away, it is unlikely we will be able to accommodate you. For that we apologize. We ask for your patience as we all navigate this unique situation together. Be nice to our employees, they are doing their best to answer your questions and get your product to you as quickly as they can.
Regarding Shipping: Like our suppliers, shipping companies have been deeply affected by the COVID-19 epidemic. Please understand, at the moment, shipping speeds are varying from their promised times. While we ship most items promptly, UPS and USPS, are often not getting products to our customers within the promised timeframe. We are unable to offer refunds for slower shipping at the moment, as this is not within our control. We pay for the shipping speed requested, and, at the moment, our shipping partners are unable to meet their own standards of speed and reliability (this is true of overnight as well) We apologize for this, but can't do anything about it. Please be aware, however, that shipping speeds still matter. While 3-day shipping may, sometimes mean 4-day shipping, it will still be faster than Ground. If you need your product quickly, please choose faster shipping, as it will be faster. But do not expect to get the product in the expected timeframe.
To installers: We have seen an uptick in orders from individuals we suspect to be professional installers. If you are here to get product quickly because you are unable to get the product at your usual supplier, rest assured, we are also out of the product and won't be able to fulfill your order in a timely manner. Like our end-users, we will be delivering products as soon as we get them in.
The Alarm.com System Enhancement Module or SEM marks the first product to integrate Honeywell alarm communications with the Alarm.com platform. The SEM is essentially a glorified 3G CDMA cellular communicator that uses the robust Verizon cellular network to transmit signals from a traditional Honeywell/ADEMCO VISTA low P-series alarm system. This compatibility includes the VISTA-10P, 15P, 20P, 21iP and their First Alert equivalents. The VISTA-20P is one of the most common alarm panels in the United States. There are limitations. The panel must have a manufactured date of 2005 or later. This is printed on the PROM chip located on the board.
Traditionally, Honeywell kept all alarm communication in house with their daughter company, AlarmNet. Although AlarmNet offers similar services to Alarm.com in the form of the Total Connect 2.0 app, Alarm.com offers a wide range of integrations stretching from Nest thermostats to voice activation via Alexa and apple home kit devices.
The SEM wires into ECP keypad bus to the ground and data connections. Generally ECP devices draw power from the VISTA panel's 12VDC output. However the SEM draws from the panel's backup battery. There is a red wire that comes with the device. Inside the cable there is a fuse designed to protect the SEM and alarm panel from any shorts. After you install the SEM, there are some simple changes required before registering with an alarm.com dealer.
The SEM uses keypad address 23 by default so you will want this address to be open and set to partition 1. If it is in use you can change the keypad address by following the steps in the installation manual. Since Alarm.com allows you to manage user codes from the web login and app, you will need to delete all your user codes from the panel. You can add them back at the keypad locally or through the app after it has been setup.
Outdated SEM Device
Submitted on
07/15/2020Alarm Grid
The Alarm.com ADC-SEM100-CDMA is a discontinued Alarm.com Cellular Communicator for Honeywell VISTA Security Systems. This device is one of many System Enhancement Modules (SEMs), which are used to connect various security system with Alarm.com and provide them with remote Z-Wave control. Having an SEM device for a Honeywell VISTA System is somewhat unique, as it will allow you to use the system with Alarm.com as its interactive monitoring and automation platform. Normally, a Honeywell VISTA System would use Total Connect 2.0 for this purpose. But if you prefer to use Alarm.com with your Honeywell VISTA, then an SEM is for you. But we do not recommend the ADC-SEM100-CDMA for this purpose. This is because it communicates across the Verizon CDMA Network, which is being shut down in the coming years. Instead, we recommend using an LTE module instead. Coupled with the fact that the communicator is discontinued, we only give it a 3 Star rating.
There are some aspects we liked about the Alarm.com ADC-SEM100-CDMA. For one, it allowed for connectivity with Alarm.com. This is a great interactive platform for controlling your system remotely. You can access the service from virtually anywhere to arm and disarm your system, check system status, control Z-Wave devices, and more. And since the ADC-SEM100-CDMA has a built-in Z-Wave controller, you will be able to build an automation network around the system. Just be aware that all Z-Wave devices will need to be controlled remotely through Alarm.com. Since this is a cellular communicator, it provides reliable cellular service when active.
But the downsides regarding the Alarm.com ADC-SEM100-CDMA should not be ignored. For one, it is discontinued, and it can no longer be purchased new. You shouldn't purchase a used model either, as the ADC-SEM100-CDMA can no longer be activated for monitoring service. This is because the Verizon CDMA Cellular Network is being shut down soon, and Alarm.com no longer allows new CDMA activations. If you have an existing ADC-SEM100-CDMA, then it will continue to work until Verizon shuts down their CDMA network. But once the network is shut down, then the communicator will no longer work at all. Therefore, you should upgrade to an LTE communicator as soon as possible. A good SEM device for a VISTA that uses LTE connectivity is the Alarm.com ADC-SEM210-VT-VZ. With these downsides in mind, we give the Alarm.com ADC-SEM100-CDMA a 3 Star rating.
Good: Alarm.com, Built-In Z-Wave, Reliable Cellular Communication
Bad: Discontinued, Can No Longer Be Activated, Will Stop Working Once Network Shut Down
