Three white electronic devices with finned heatsinks are shown against a blue background for cellular in-building coverage.

SOLiD BARS™
DAS

System Overview

SOLiD BARS™ is an advanced in-building solution that enhances cellular signals and provides reliable multi-operator coverage for up to four mobile operators. It is designed to comply with applicable regional regulatory requirements, potentially eliminating the need for retransmission agreements, and supports up to forty (40) remote units from a single head-end using up to four (4) hubs. The system includes an Echo Cancellation System (ECS) for stable performance and is managed through the SOLiD BARS™ EMS Portal, with on-site access via the LocalGUI.

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Low Total Cost

  • SOLiD BARS is designed to meet licence‑exempt regulatory requirements across global markets, ensuring compliance while maintaining high performance, reliability, and ease of deployment.

  • Ethernet cabling helps reduce installation complexity and commissioning time.

  • The head-end and hubs each support up to eight (8) remote units, reducing the need for additional head-end and donor equipment.

Easy Setup (Installation & Commissioning)

  • A single Ethernet cable per remote unit helps reduce cabling requirements.

  • Power-over-Ethernet (PoE) supports flexible remote unit placement.

  • Automatic commissioning helps reduce configuration errors and on-site visits.

  • Echo Cancellation System (ECS) helps prevent signal oscillation.

  • Donor antenna positioning can be verified via the LocalGUI (where applicable).

  • Uplink inactive (sleep) mode supports compliance with applicable regulatory requirements.

Multi-MNOs & Multi-Bands

  • Supports up to four mobile operators in a single system.

  • Supports multiple frequency bands per mobile operator to accommodate diverse deployment environments.

  • Each mobile operator is processed independently to improve isolation and overall system performance.

Web-based System

  • Provides a web-based interface for simplified commissioning.

  • The SOLiD BARS™ EMS Portal enables continuous monitoring and system optimisation.

Advanced Network Management

  • Supports SNMP v2c/v3 for monitoring and alarm reporting.

  • Enables integration with external network management systems (NMS).

 
Diagram of system architecture showing a central head-end connected via RF coaxial cables to eight receiver units (RUs)  RU #1 to RU #8). The head-end is connected to four satellite antennas through RF coaxial cables. Blue CAT6A cables connect the head-end to each RU.
Diagram of system architecture showing a central head-end connected via RF coaxial cables to eight receiver units (RUs)  RU #1 to RU #8). The head-end is connected to four satellite antennas through RF coaxial cables. Blue CAT6A cables connect the head-end to each RU.

SOLiD BARS™
System Overview

System Architecture

Off-air, 1 (HE) AND 8 (RUs)

Blue SOLiD BARS logo with four bars in ascending order, with the text 'SOLID' in white on a vertical blue rectangle on the far right.
Diagram of extended network architecture showing off-air antennas, three hubs, and twenty-four remote units, with cabling details.

SOLiD BARS™
System Overview

Extended Architecture

Off-Air, 1 (HE), 4 (HUBs) and 40 (RUs)

Blue SOLiD BARS logo with four bars in ascending order, with the text 'SOLID' in white on a vertical blue rectangle on the far right.
A white BARS head-end unit with vertical fins and mounting brackets on a dark blue background.

SOLiD BARS™
Head-end Unit (HE)

Head-end Unit (HE)

The BARS head-end unit (HE) is the core of the system. It receives and digitises signals from up to four mobile operators, then delivers data and power to remote units (RUs) via

dedicated Ethernet cables. The HE extends its coverage by supporting up to 40 RUs simultaneously.

Bar chart with four blue bars of increasing height, with the word 'SOLID' in large white letters on a blue background to the right.
A white HUB unit  with a metal frame and multiple vertical fins, mounted against a solid blue background.
A white HUB unit  with a metal frame and multiple vertical fins, mounted against a solid blue background.

Hub Unit

The HUB unit serves as a distribution component within the BARS system. It transmits data from the HE up to 10 km using an SFP module and connects to up to eight remote units (RUs).

SOLiD BARS™
Hub Unit

A blue logo with a bar chart and the word 'SOLID' written vertically on the right side
A white, square-shaped outdoor wireless access point router with green indicator lights at the bottom, set against a solid blue background.

SOLiD BARS™
Remote Unit (RU)

Remote Unit (RU)

The BARS Remote Unit (RU) extends the limited coverage of the head-end unit (HE). It receives cellular signals directly from the HE or through a HUB, converts them into RF ( radio frequency) signals, amplifies them, and transmits them through its RF port.

Blue and white logo with a bar chart and the word 'SOLD' vertically on the right side.

SOLiD BARS™ System Overview

Table displaying radio frequency bands, their download and upload frequency ranges in MHz, full bandwidths, maximum channel bandwidths, maximum UL output power for 3GPP and Ofcom, and maximum DL output power for 3GPP and Ofcom with +10dBm/5MHz adjustment.
Table showing multi-band configuration support for MNO donor ports, listing the number of MNOs connected and the maximum bands per port, with 4, 3, 2, or 1 MNOs and corresponding maximum bands of 2, 3, or 4.
A technical table titled "System RF Performance" listing parameters such as RF Input Power, System Gain, EVM, Interference Cancellation, and Noise Figure, with columns for direction, unit, and specifications.
A blue bar graph with four ascending bars next to a vertical blue rectangle with the word 'SOLD' in white capital letters.

SOLiD BARS™ Contact

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