# Alarm Signalling & Critical Paths

Netavo provides fire and intruder alarm signalling that does not depend on a copper line, with up to four paths from each site, each verified continuously. Compliant with the European standards for alarm transmission, and integrated with the main UK alarm receiving centres.

[Talk to us about signalling](https://netavo.com/work-with-us)

## Up to four paths from every site

Each path is verified separately, and each mobile path can itself use more than one network, so the loss of a broadband line or a mobile network does not prevent a signal from being delivered.

| Path | What it is |
| --- | --- |
| Ethernet | The site's own wired connection |
| Wi-Fi | The site's wireless network, as a second fixed path |
| Mobile A | A multi-network SIM, able to use more than one mobile network |
| Mobile B | A second, independent multi-network SIM |

## Continuous path verification

Conventional signalling often discovers a failed backup path only when the primary path also fails. Our units verify every path continuously, so a fault is reported while there is still time to resolve it.

- **Verification**: About every 30 seconds on every path
- **Transport**: Encrypted and mutually authenticated
- **Firmware**: Updated remotely
- **Alarm receiving centres**: Integrated with the main UK ARCs

## Standards compliance

Our signalling is compliant with the European standards that govern how fire and intruder alarms are transmitted.

| Standard | What it covers |
| --- | --- |
| EN 54-21 | Alarm transmission and fault warning routing equipment for fire detection and fire alarm systems |
| EN 50136-1 | Alarm transmission systems: the general requirements, including the performance and monitoring of the transmission path |
| EN 50136-2 | The supervised premises transceiver, the equipment at the protected site |
| EN 50136-3 | The receiving centre transceiver, the equipment at the alarm receiving centre |
| EN 50131 | Intrusion and hold-up alarm systems |

## Integrated with the main UK alarm receiving centres

A signal is only useful once it reaches someone able to act on it. Our signalling is integrated with all of the main alarm receiving centres in the United Kingdom, so installers can keep the monitoring arrangements they and their customers already rely on.

Moving a site to our signalling changes how the alarm is transmitted. It does not require a change of alarm receiving centre.

- **Alarm receiving centres**: All main UK ARCs
- **Existing monitoring contracts**: Retained
- **Fire and intruder**: Both supported

## How signalling is delivered

### 01 Design

We establish which paths each site can support, covering wired, wireless and the mobile networks available at the panel’s location, and confirm the alarm receiving centre.

### 02 Deliver

The unit is installed alongside the panel and every path proven before handover, with the existing line retained until the new service is live.

### 03 Operate

Every path is monitored continuously, and a failed path is reported to you promptly.

## Common questions

### Which standards does Netavo's alarm signalling comply with?

Netavo's alarm signalling is compliant with EN 54-21, EN 50136-1, EN 50136-2, EN 50136-3 and EN 50131.

### Which alarm receiving centres does it work with?

Netavo's signalling is integrated with all of the main alarm receiving centres in the United Kingdom, so a site does not need to change ARC.

### Is it a replacement for Redcare?

Yes. Netavo's signalling does not depend on a copper line and is designed as a replacement for Redcare, using up to four paths: Ethernet, Wi-Fi and two multi-network mobile SIMs.

### How often is each signalling path checked?

Every path is verified about every 30 seconds, so a failed path is reported while there is still time to resolve it.

## Often delivered alongside

### [IoT & Mobile Data](https://netavo.com/services/iot)

Global multi-network SIMs on our own mobile core, with internet access or a private network for device fleets.

### [Connectivity & WAN](https://netavo.com/services/connectivity)

Fibre and Ethernet access, private WAN and resilient connectivity, from a single site to a national estate.

## Sectors we serve with this

### [Fire & Security](https://netavo.com/sectors/fire-and-security)

Multi-path fire and intruder alarm signalling, site connectivity and private mobile data for protected sites.

### [Commercial Property & Facilities Management](https://netavo.com/sectors/commercial-property-and-facilities)

Building connectivity, private links for building systems, alarm signalling and voice across a property portfolio.

### [Lift Monitoring & Call Points](https://netavo.com/sectors/lift-monitoring-and-call-points)

Cellular replacement for lift alarm and call point lines, and multi-network mobile data for lift monitoring.

## Migrating sites from Redcare?

Share the site list and we will confirm which paths each site can support, with partner pricing.

[Work with us](https://netavo.com/work-with-us)

Source: https://netavo.com/services/signalling