Triple Band Fiber Optic DAS 4G/5G MIMO at B31, B26, n78
The EMTS Telecom Services Triple-Band Fiber Optic Repeater System is a high-performance solution designed for private 4G and 5G networks, supporting both FDD and TDD modes. Built to resolve mobile signal challenges in areas remote from the Base Transceiver Station (BTS), this system leverages existing fiber optic infrastructure to deliver robust and extended wireless coverage.
The system consists of two key components: a Master Unit (MU) and one or more Remote Unit (RU). The MU captures the BTS signal via a donor antenna, converts it into an optical signal, and transmits it over fiber to the RU. The RU then reconvert the signal back to RF for broadcast in areas with weak or no coverage. The system also supports full bi-directional communication, amplifying and relaying uplink signals back to the BTS.
The Master Unit , housed in 19” enclosure includes an integral POI (Point of Interface), streamlining BTS connectivity and minimizing the need for external components. The RU is compact to ease the installation process.
Operating across the 450 / 850 / 3500 MHz bands — MIMO 2:2 for FDD and MIMO 4:4 for TDD — the system complies fully with LTE and 5G standards. It is ideally suited for environments such as tunnels, airports, underground facilities, mining operations, hotels, and large enterprise campuses, particularly where underground fiber infrastructure is in place.
With a strong track record in multi-band fiber DAS deployments, EMTS offers end-to-end solutions that are reliable, scalable, and engineered for long-term performance in complex RF environments.
Key Features
- Compact size Remote Unit (RU) supporting 3 bands
- Suitable for indoor installations, designed for space-efficient mounting
- Supports MIMO Topologies in all bands – MIMO 2:2 in FDD bands (450/850 MHz), MIMO 4:4 for TDD band (3500 MHz)
- Built-in antenna at the RU for easier deployment of the DAS system avoiding installation of coaxial cable
- Low Optical Transmission Loss – Ideal for large-scale installations
- LTE and 5G Compliance – Fully compatible with industry standards for current and next-generation networks
- Built-In 5G Dynamic TDD Sync Detection Module – Automatically completes 5G network cell search and wireless signaling processing
- Digital Bandwidth Adjustment – Allows seamless adaptation to varying frequency band requirements
- Master-Unit includes POI to combine the supported bands
- One Master Unit (MU) supports up to 4 Remote Units (RUs) via star topology to optimize fiber resource usage
- Tx/Rx and Alarm over Single Fiber – Control and alarm data transmitted through the same fiber used for signal relay
- Donor Signal Monitoring – Enables real-time optimization and fault detection
- 4G Modem Connectivity – Enables remote communication with the EMTS NMS (Network Management System)
- USB Port Access – Supports direct laptop connection for local supervision
- IP-Based NMS Support – Remote status monitoring and parameter configuration via Ethernet EMTS Telecom Services Ltd. offers a comprehensive portfolio of enhanced coverage solutions for the Wireless
