Resideo LTEM-PIV Posts

On July 5, 2022 Resideo announced that all LTEM-PA, LTEM-PV, LTEM-PIA, and LTEM-PIV communicators will undergo a slightly revised activation process. Upon registration, if the communicator is not using the latest firmware version, it will automatically receive an Over-the-Air (OTA) update.

This announcement came in the form of MyWebTech Technical Notification #83. For those communicators with a WIFI or Ethernet connection, the OTA update will be performed using this communication path. If WIFI or Etehrnet is not available, then cellular data will be used. The update process typically takes about five (5) minutes, but when cellular is the only communication path available, it may take longer. The length of time a cellular upgrade takes also depends on the cellular signal strength.

During the update, the communicator's LED's will light according to where the communicator is in the two-stage process:

• Firmware Downloading: REG, Status, and Fault LEDs will fast-blink in unison.
• Upon Firmware Completion: The device will reset, then all five (5) LEDs, REG, Status, Fault, Cell, and WIFI/Ethernet will fast blink in sequence.

The OTA software update will cause the communicator to generate a few different messages to the central station. These messages indicate the beginning and end of the software update process. The messages sent are as follows:

• E903 - Application Code Update (Remote Download begins)
• R903 - Application Code Update Restore (Remote Download Completed)
• E904 - Application Code Update Failure (Remote Download/Update Failed)

For Alarm Grid customers, this notice means that if you are using one of the LTEM-P Series communicators listed above, it is more important than ever that you have your equipment installed and ready when your activation appointment time rolls around. In particular, anyone who will be using cellular communication only, as any OTA update required may take some time to complete, and we currently have no way of knowing how long.

If you have any questions about this notice, reach out to your alarm dealer for details. If you are an Alarm Grid customer, you can send us an email at support@alarmgrid.com. We're here Monday - Friday from 9:00 am - 8:00 pm Eastern time to answer your questions.

An announcement on the AlarmNet360 page shows that they will send a remote reset command to some LTEM-PA, LTEM-PV, LTEM-PIA, and LTEM-PIV radios. This will occur today, Friday 04/15/22 between 2:00 pm - 3:00 pm ET. This may cause a trouble condition, and queued alarm reports could be sent.

It's unclear why this is being done. After a successful reset occurs, the radio will send an "E339-EXP. Module Power ON / Reset" message to the monitoring station. If the radio was in comm failure prior to the reset and any unsent alarm signals were queued, this reset may cause those alarm messages to be sent. These signals would show up immediately following the E339 signal at the central station. We assume this would also cause the same alarm messages to show up in Total Connect 2.0, and to be sent as notifications.

In addition, depending on how the panel is programmed, this event may cause the panel to display a bF or Check 103 message, and could also cause trouble beeping from the keypad. Disarming the system twice should clear the message and return the system to its normal state.