A retiring copper line can interrupt alarm communications even when the installed fire or burglar panel still performs its core functions. Replacing the communication path gives alarm dealers a way to preserve compatible equipment while moving the account onto managed cellular connectivity.
The POTS Box 90X2 provides a supervised, dual-SIM replacement for the analog phone line connected to compatible alarm panels. Your technicians can install it beside the panel, complete central-station testing, and maintain control of the customer account throughout the migration.
Replace the Copper Line While Preserving the Panel
Many legacy alarm panels use a digital alarm communicator transmitter (DACT) to send signals over an analog telephone line. Copper retirement affects that external communication path rather than the panel’s ability to detect events within the protected property.
The 90X2 supplies analog line service through its Foreign Exchange Station (FXS) ports and carries alarm signals over managed Long-Term Evolution (LTE) connectivity. Compatible panels can continue using their established dialing behavior while the 90X2 handles the connection beyond the building.
Keeping the installed panel can reduce the equipment, programming, and field work involved in the migration. Your team can focus on the line replacement, power provision, signal supervision, and acceptance testing instead of automatically expanding the project into a full alarm-system replacement.
Retain the Existing Central-Station Account
A communication-path change should preserve the monitoring arrangement wherever the panel, receiver, and selected configuration remain compatible. Moving an account unnecessarily can create additional programming, coordination, testing, and administrative work.
The POTS Box 90X2 is designed to work with existing central-station arrangements in supported deployments. The official alarm-dealer program specifies that dealers can retain the current account without receiver changes or account moves, then validate signal delivery directly with the central station.
Your team remains the alarm dealer of record and coordinates the migration with the customer and monitoring center. The POTS Box provides the equipment, provisioning, technical assistance, and deployment resources behind the project.
Add Dual-SIM Cellular Failover
A single cellular carrier may perform differently across buildings, equipment rooms, and geographic markets. The 90X2 uses AT&T and Verizon SIMs with automatic failover, giving the configured alarm path access to an alternate carrier if the primary connection becomes unavailable.
Supervised signaling and line-status monitoring help your team detect communication faults after installation. Remote management also supports provisioning, troubleshooting, alerts, and fleet oversight across multiple customer sites.
The 90X2 includes eight FXS ports and can replace up to eight analog lines in supported configurations. Final capacity depends on the connected equipment, site design, signaling requirements, and approved deployment plan.
Use Listed Equipment for Fire Alarm Communications
Fire alarm signaling requires equipment evaluated for the intended communication function. The 90X2 is listed to UL 864 and is presented by The POTS Box for fire alarm and burglar alarm applications.
UL Solutions explains that certified dialer-capture modules undergo dedicated evaluation for performance-based alarm signaling. Testing covers areas such as communication supervision, local trouble annunciation, construction, protocol compatibility, and interoperability with receiving equipment.
The product listing supports an appropriately designed installation, while the complete project still requires compatible equipment and correct field execution. Your team should follow the installation instructions, coordinate with the central station, complete the required signal tests, and document the communication change for the Authority Having Jurisdiction (AHJ) where applicable.
Prepare the Account Before the Truck Roll
Start with the panel model, DACT, current telephone lines, receiver format, account number, and central-station testing procedure. These details help The POTS Box prepare the correct device configuration and give the technician a defined installation scope.
The alarm-dealer program includes account onboarding, demo units, device-configuration guidance, technical enablement, and support for central-station testing. Pre-provisioning can reduce setup work at the property and help the technician arrive with equipment prepared for the account.
For portfolio deployments, maintain a site record that links each device to the correct customer, panel, central-station account, and line count. A consistent record reduces field confusion and keeps provisioning aligned with the property scheduled for installation.
Install and Test the Complete Signal Path
The technician installs the 90X2 beside the compatible fire or burglar alarm panel and connects the relevant analog communication lines. Existing panel programming and field devices can remain in place when the approved configuration supports them.
Testing should cover the complete path from the panel to the central station. Place the account in test mode, initiate the required alarm and supervisory events, and confirm that each signal reaches the correct account with the expected event information.
Automatic carrier failover should also be tested according to the deployment plan and applicable requirements. The POTS Box dealer framework includes end-to-end signal validation and documentation for central stations, AHJs, and insurers.
Keep the original copper line active until the replacement path has passed its required tests. A documented acceptance point gives your team a reliable basis for removing the retired service from the account.
Maintain Communications During a Power Interruption
The 90X2 includes an internal 18-cell lithium-ion battery with up to 48 hours of standby operation. Actual runtime varies according to usage, configuration, and connected load.
Its uninterruptible power supply output can also support approved connected equipment where the installation design calls for it. Your team should match the power configuration to the alarm application, local requirements, and the equipment connected to the device.
Battery alerts and line-status monitoring give your service team information it can act on after installation. Including the 90X2 in the account’s inspection and maintenance records keeps the communication path within the same operating discipline as the alarm system it serves.
Cover Accounts Beyond Your Normal Territory
A multi-location customer may have buildings outside your technicians’ usual service area. The POTS Box offers nationwide installation assistance for portfolio accounts, allowing your team to coordinate broader migrations without surrendering the customer relationship.
Dealer pricing, deal registration, dedicated technical resources, and field support reinforce that channel structure. Your team continues to manage the account while The POTS Box supplies the product and deployment assistance required for each site.
This model supports a consistent process across regional and national portfolios. Each property still receives a site-specific configuration, but your central team can standardize account preparation, provisioning, testing records, and post-installation oversight.
Frequently Asked Questions
Can The POTS Box 90X2 replace the phone line without replacing the alarm panel?
Yes, The POTS Box 90X2 can provide analog line service for compatible existing fire and burglar alarm panels while carrying their signals over LTE. Panel compatibility and the complete communication path should be confirmed during account preparation and acceptance testing.
Can an alarm dealer keep the existing central station?
Yes, The POTS Box 90X2 supports existing central-station accounts in approved configurations without requiring an account move or receiver change. Your team should complete end-to-end testing with the monitoring center before retiring the copper service.
What does the UL 864 listing cover?
The listing confirms that The POTS Box 90X2 has been evaluated under applicable UL 864 requirements for fire alarm communication equipment. Product compatibility, installation, signal supervision, power provisions, documentation, and AHJ requirements still apply to the completed system.
How does dual-SIM failover work on The POTS Box 90X2?
The POTS Box 90X2 uses AT&T and Verizon SIMs with automatic carrier failover. The alternate cellular connection gives the configured alarm path another network option if the primary carrier becomes unavailable.
How many analog lines can The POTS Box 90X2 replace?
The POTS Box 90X2 provides eight FXS ports and can support up to eight analog lines in suitable configurations. The POTS Box can help match the line count, panel requirements, connectivity, and power design to the site.
Keep the Panel and Modernize the Communication Path
Copper retirement gives alarm dealers an opportunity to preserve compatible installed equipment while updating how signals reach the central station. The POTS Box 90X2 combines analog line support, dual-SIM cellular connectivity, remote management, battery operation, dealer assistance, and nationwide deployment resources.
Talk to The POTS Box Dealer Team about the panel model, DACT, central station, line count, and property locations. Your team can then plan a tested migration that protects the installed system and keeps the customer account in your hands.










