TETRA/TETRAPOL/P25 Analog Fiber Optic Repeaters

HELIOS® Technologies designs and manufactures TETRA / TETRAPOL / P25 Repeaters to enhance the radio coverage of national public safety networks and private radio networks. We provide secure and reliable radio coverage for critical communications for the owners, users and emergency services of confined areas such as:

To enhance the radio coverage of national public safety networks and critical secure communications networks like police stations, airports and etc.
To extend the coverage of private radio networks in major infrastructures like shopping centers, exhibition halls, convention centers, hospitals, confined areas such as service corridors, tunnels, underground car parks, mines.

Because each installation/project is unique, HELIOS® Technologies proposes a complete portfolio of solutions with off-air and optical repeaters, advanced DSP (Digital Signal Processing) technologies as band selective, channel selective, AGC per time slot, squelch, frequency shifting, remote monitoring via HTTP-SNMP. Our public safety repeaters (BDA) can be successfully installed and used all around the globe, as our know-how lets us produce digital repeaters of all dimensions and technical features.

HELIOS® Technologies’ indoor coverage solutions can meet all the requirements of any individual public safety network or private radio network. HELIOS® Technologies provides TETRA / TETRAPOL / P25 repeaters that are homologated to enhance public safety networks and private radio networks. HELIOS® Technologies’ compact size and multi-channel digital repeater enhances RF coverage in confined areas to enhance the public safety networks or private radio networks with large coverage capability and no near-far effect. All of HELIOS® public safety repeaters are easy to install and are operated and controlled by SNMP, SCADA or Ethernet using a web browser.

Also, we produce TETRA / TETRAPOL / P25 repeaters that are customizable to the client’s needs and different state legislations, and they can process any frequencies due to advantage of SDR technique. Our products meet all the regulatory standards and specifications, such as national public safety and technical requirements.

HELIOS® TETRA / TETRAPOL / P25 Analog Fiber Optical Repeaters is a two-tier architecture consisting of the Optical Master Units (OMUs) and Optical Remote Units (ORUs). RF signals from Base Stations, off-air, BDAs or combination thereof can be received. In the case of off-air feed, the OMU has the option to combine the functions of the off-air Repeater and OMU to provide transmission and distribution of radio signals. The signal is filtered and then converted to optical signal which will be transport via single mode fiber and received by the ORUs. The ORUs then convert the optical signal back to RF signal and amplify signal for delivery to the antennas. On the reverse path (uplink), the ORUs and OMU perform the inverse functions and delivery the signals back to the corresponding off-air antenna, BDAs or Base Stations.

Star connection between OMU and ORUs is easy for centralized management. Customized optical port numbers in OMU such as single port, two ports, four ports, eight ports or more ports. The OMU and ORU utilizes an embedded WEB management system for system configuration and network monitoring. The embedded WEB management system collects alarm information from both OMUs and ORUs. 2 * RJ45 port both in OMU and ORUs can allows local control and remote access the repeater GUI from everywhere through intranet/internet/VPN.

With waterproof wall-mounted cabinet, the HELIOS® public safety repeaters can be installed in the harshest environment, indoors or outdoors. HELIOS® TETRA / TETRAPOL / P25 Repeaters can be ordered with different frequencies, powers (low, medium, and high), different power supply voltages, with or without redundancy power supply, with or without battery backup, and with a 2G/3G/4G wireless modem.

KEY FEATURES

Support TETRA / TETRAPOL / P25 bands both for national public safety networks and private radio networks
One Master Unit can support up to 8 Remote Units by Star Link
RF composite power of ORU 30dBm, 33dBm, 36dBm and 40dBm for option
Support monitor and configure Remote Unit from Master Unit
RJ-45 Port as LAN port to support IP Web Browser GUI for Local Control
Additional RJ-45 Port as WAN port to support remote access through Internet/Intranet/VPN
Built-in 2G/3G/4G wireless modem (Option) for remote monitoring by SMS or Data Link
Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, optical link, PA switch, output power level, gain, ATT, return loss, VSWR etc.
SNMP V2 & V3 + MIB file supported
Dry Contact for Alarm External
Optical Master Unit adopts standard 19” Rack casing enclosure
Optical Remote Unit adopts IP65 rating cabinet with convection cooling
Light weight and compact size, flexible wall and pole mount.

SYSTEM DIAGRAM

APPLICATIONS

To expand Public Safety TETRA / TETRAPOL / P25 signal coverage of fill signal blind area where signal is weak or unavailable or poor data throughput.

Indoor coverage: Airports, Hotels, Basements, Shopping Malls, Offices, Apartments, Parking lots, Metro, Mines, Tunnels, Exhibition Center and Elevators etc.
Outdoor coverage: Highway, Tourism Regions, Golf Courses, Factories, Villages etc.

OMU (Optical Master Unit)

TECHNICAL SPECIFICATIONS (OMU)

Frequency Range: 380-470 MHz, 870-921MHz (Customized)

Operation Bandwidth: 5 MHz (Customized)

Duplexer Spacing: 10 MHz (Customized)

Ripple in Band: Max ±2dB

Downlink Max Input Power without Damage: +10dBm

Intermodulation: Complies with ETSI and TETRA Standard

Spurious Emission: Max -36dBm @ 9KHz-1GHz, Max -30dBm @ 1-12.75GHz

VSWR: Max 1.8

Number of Analog Optical Ports: Up to 8 Ports (Customized)

Optical Transmission Distance: Up to 10KM

RF Connector: 1* N-type Female

Optical Connector: 2, 4, 8 * SC/APC

Option External Alarm inputs: Up to 4

I/O Impedance: 50 ohm

Uplink Noise Figure: Max 5dB @Max. Gain

Temperature Range: -25℃ to +55℃

Relative Humidity: Max 95%

MTBF: Min. 100,000 hours

Power Supply: 230VAC 50Hz or 110VAC 60Hz or -48 VDC (Option)

Power Consumption: Max 50W

NMS Monitor Function: Real-time alarm for Temperature, Power Supply, Output Power, Gain, ATT, Optical Link and etc.

Local Control: IP Web Browser GUI via RJ-45 Port

Remote Monitoring and Control: Additional RJ-45 Port as WAN port to support remote access through Internet/Intranet/VPN

SNMP Function: SNMP V2 & V3 and MIB File

Weather Resistance: IP43

Dimensions: 19″ 2U

Weight: Max. 10KG

* Technical Specification subject to change without notice

ORU (Optical Remote Unit)

TECHNICAL SPECIFICATIONS (ORU)

Frequency Range: 380-470 MHz, 870-921MHz (Customized)

Operation Bandwidth: 5 MHz (Customized)

Duplexer Spacing: 10 MHz (Customized)

Ripple in Band: Max ±2dB

Downlink Composite Output Power: 33±2dBm, 36±2dBm, 40±2dBm for option

System Gain: UL: 45±2dB, DL: 50±2dB

Gain Adjustment: 30dB in 1 dB step

Uplink Maximum Input Without Damage: -10 dBm

Group Delay: <3µs exclude fiber delay

Uplink Noise Figure: ≤5dB @ Max Gain (1 Master and 1 Remote)