M-DOTS Capacity Accumulation Units – CAUs

The Helios® M-DOTS™ Capacity Accumulation Unit (CAU) is an innovative approach to remotely managing and monitoring the power levels of DAS systems. The modular design allows the user to mix and match cards with different frequencies for complete customization.

With all digital software and hardware platform based upon all Software Define Radio (SDR) technique, each Helios® M-DOTS™ CAU enables support up to eight RF bands covering from 600MHz to 3800MHz frequency range, each RF bands can supports max 100MHz bandwidth and up to 8 tunable sub-bands with individual gain control by software for multiple technologies/operator, unique 15dB dynamic compensate/control range will automatically ensure the RF signals coming from different technologies/operator to be keep same power level before input to OMU or DAS.

The innovative GUI design is very intuitive and was developed to be so simple to reduce training requirements and ease the use of operation. Users have 24/7 access to the system once it is properly installed. Multiple personnel can access the CAU simply by using an Internet connection to log on to the Web-based graphical user interface (GUI). Users can view and adjust power levels, modify configuration settings, and set alarm threshold levels as well as many other actions.

  • Multi-Band, Multi-Operator and Multi-Technology input support
  • Supports Main and MIMO Band
  • Up to 8 tunable sub-bands with individual gain control by software for multiple technologies / operator
  • CAU typical input power range per filter per Band from -10 to 10dBm
  • Unique 15dB compensate/control range for each sub-band to automatically ensure the RF signals coming from different technologies/operator to be keep same power level before input to OMU or DAS
  • Optional attenuation adjustment by GUI for Multi-Operator and Multi-Technology
  • Web browser GUI design to support manual control and monitoring via RJ-45 Port
  • Easy installation and connection
  • 19″ rack-mountable compact design
  • SNMP V2 & V3 support with a MIB file
  • Supports remote control via wireless modem or ethernet
  • Supports dual redundant hot swap power supply

Electrical Specification

Frequency Range: Band 8: 890-915MHz / 935-960MHz(Main and MIMO)

Band 3: 1710-1785MHz / 1805-1880MHz (Main and MIMO)

Band 1: 1920-1980MHz / 2110-2170MHz(Main and MIMO)

Typical Input Power Range: -10dBm~+10dBm per filter (sub-band) per Band (Both Main and MIMO)

Output Power per Port: 0 dBm per Band

Compensation / Control Range: Max 15dB

Manual Attenuation Range: 10dB and 1dB steps

VSWR: <1.5

Power Supply: 220V AC (Dual Redundant Hot Swap Power Supply Support)

Power Consumption: Max 80W

External and Antenna Connection

Input Port NO.: 1 port per Band

Output Port NO.: 1 port per Band

Connectors: N-Type Female

Mechanical Specification

IP Rating/Cooling: IP-40 and cooling with Fan

Temp Range: -25℃ to +55℃

Humidity Range: 0-95%

Dimensions: 19” 5U

Weight: Max 20kg