0.5W ERCES Public Safety BDA for Small-to-Mid Sized Buildings

Coming Soon (Jan 2022)
Only available in the US


Ensuring reliable communication for emergency personnel, the Cel-Fi SOLO RED public safety solution is a half-watt emergency radio communication system that delivers best-in-class talk-in and talk-out performance. An ERCES solution that fully complies with current fire codes, SOLO RED is an Integrated Public Safety BDA that provides 700/800 MHz Land Mobile Radio (LMR) coverage in buildings up to 238,000 ft². This versatile system is available in Class A and Class B variations and accepts DC power from either the purpose-built Cel-Fi SOLO RED Battery Backup Unit (BBU) or a standard third-party BBU device. SOLO RED is easy to install, NEMA 4 rated, listed to UL 2524, and compatible with other public safety systems.

Advancing ERCES Public Safety Solutions

No Noise Guarantee

By monitoring environmental changes and performing automatic adjustments, Cel-Fi SOLO RED ensures emergency personnel stay connected in any situation by delivering industry-leading performance with a no noise guarantee.

Automatic Setting of Uplink Transmitted Power

Cel-Fi SOLO RED simplifies the optimization of uplink (UL) gain for emergency communication systems by eliminating the need for additional equipment or guessing the calculations. The system calculates path loss automatically, allowing for different values according to network requirements and the option to setup a target range.

Automatic Calculation and Setting of Isolation & Downlink Gain

While isolation is calculated in real-time and automatically set at 20 dB per NFPA 1221, the system allows for different values according to local ordinances. DL gain is automatically adjusted to achieve the required value.

Industry-First Talk-Out Guarantee

Cel-Fi ERCES solutions’ groundbreaking uplink (UL) test allows integrators to easily achieve industry-leading talk-out performance by measuring the signal traveling from the installation site to the remote tower via walkie-talkie. Using Cel-Fi COMPASS and the Cel-Fi WAVE PRO app, installers can test UL gain levels and view real-time analytics to ensure the best-possible signal-to-noise ratio.

Built-in Grid Test Functionality

With Cel-Fi WAVE PRO and Cel-Fi COMPASS, system integrators can test the downlink (DL) gain for the design planning stage and post-install performance evaluation. Export the Full Signal Report as a .csv, which includes key LMR/Operator Network parameters: Operator, RSSI, RSRP, RSRQ, Frequency, Band, PCI and more. Installers use system operation data to prepare for AHJ walk-through tests.

Built-in End-to-End Remote System Monitoring and Management

The web-based Cel-Fi WAVE Portal provides installers and authorized users remote monitoring, managing, and control of Cel-Fi ERCES systems from anywhere. In addition to easily adapting Cel-Fi systems to local fire codes, the WAVE Portal allows users to customize notification and policy parameters. The intuitive platform also offers advanced performance metrics on Cel-Fi solution’s individual components, including real-time high site-to-server antenna monitoring and donor signal quality reports.

SOLOR RED Components


  • ERCES Public Safety Solution: 0.5W Emergency Radio Communication System for 700/800 MHz LMR
  • Class A Device: 56 Channels at 12.5 kHz Bandwidth
  • Class B Device: 28 Channels at 100 kHz or 150 kHz Bandwidth
  • Large Coverage Area: Up to 238,000 ft² for Small-to-Mid Sized Buildings
  • No Noise Guarantee: Automatic Calculation and Setting of Isolation as well as Uplink and Downlink Gain
  • Talk-Out & Grid Testing: Industry-First Uplink and Downlink Tests via Cel-Fi WAVE PRO and COMPASS
  • IntelliBoost Chipset: Delivers Unparalleled Real-Time Talk-in & Talk-Out Performance
  • End-to-End System Monitoring: Built-in Remote Monitoring and Management via Cel-Fi WAVE Portal

Cel-Fi SOLO RED BDA Model Numbers:
_ › Class A: L41-7E
_ › Class B: L41-7EB

Optional Components

SOLO RED Battery Backup Unit (BBU)

The Cel-Fi SOLO RED Battery Backup Unit (BBU) provides constant direct current and battery charging capabilities for Cel-Fi SOLO RED ERCES Integrated Public Safety BDA systems.

  • Delivers Direct Constant Current to Cel-Fi SOLO RED and System Accessories, including the Cel-Fi RED Remote Annunciator Panel (RA), Emergency Power-Off Switch (EPO), and Active Server Antennas
  • Provides Backup Power for up to 12 or 24 Hours During Power Outages
  • Supports 12V Lead-Acid Batteries
  • Two Alarms Ports for Monitoring of the BBU

Cel-Fi SOLO RED BBU Model Number:
_ › L44-00


› F42-10E-100

RED Remote Annunciator Panel

› F42-10R-100

Software & Tools

WAVE Portal

The Cel-Fi WAVE Portal is a cloud-based remote management platform that enables device management and maintenance of SOLO RED systems. The Cel-Fi WAVE platform is designed to also work on mobile phones which facilitates ease of use on site.


The Cel-Fi COMPASS RED attachment to the Cel-Fi COMPASS enables installers and integrators to perform Site Surveys that will generate Public Safety Reports (which are required by some states). Some setup is needed in the WAVE Portal before the WAVE PRO app can install the Configuration Packages and Calibrate a QUATRA RED system. The app connects directly to the QUATRA RED MBBU via Bluetooth and can also be used to monitor the Radio Data and view the System Status and Alarms.

Tech Specs

BDA Dimensions
Frequency Range LMR 700 LMR 800
Downlink (MHz) 768–775 851–861
Uplink (MHz) 798–805 806–816
Radio Performance

Technology: P25/Analog
Downlink Output Power: 27 dBm
Uplink Output Power: 26 dBm
Minimum Input level (DL/UL): -100 dBm / -90 dBm
Maximum Input level (DL/UL): -20 dBm / -27 dBm
System maximum gain: 100 dB
Noise Figure at max gain: 5 dB
Return loss: -8 dB
System Group Delay @ 12.5 kHz (usec) (Class A): 35
System Group Delay @ 100 kHz / 150 kHz (usec) (Class B): 15 / 13.6


Consumption @ 48 VDC, 102 W max


Operating temperature: -20 to 50°C / -4 to 122°F
Max surface temperature: 44°C (measured at 30°C ambient) / 111°F (measured @ 86°F ambient)
Relative humidity: 0% to 95% (non-condensing)
Product Ingress Protection (IP) Rating: NEMA 4

External Ports

2x Type-N female connectors (Donor & Server Antennas)
1x 24 pin alarm connector
1x RJ45 connector for connection to the remote annunciator
1x Terminal block for power-off switch and external alarms
1x DC port for connection to the battery backup unit

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