Active POI

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The Active SYM Point of Interface (ASPOI) is an innovative approach to remotely managing and monitoring the power levels of DAS systems. The traditional method of using passive RF conditioners is being replaced by this more intelligent interface that provides a vast improvement.

ASPOI Feature Highlights

  • – Innovative GUI: The visual block diagram GUI giving you full understanding of signal flow and power level at a glance and makes the ASPOI so easy to use, some customers call it “manual free” operation, very little training is required
  • – Quick and easy batch installation with copy/paste functionality, customers say “this is the easiest tray to install”
  • – Bird’s-eye view GUI showing all the daisy-chained ASPOIs on single screen
  • – Grow as you go-modular design with many options including 2.6G TD-LTE
  • – Space saving 2×2 way combiner/splitter card can combine two independent MIMO sector inputs



  • 1. Flexibility & Scalability
    Its modular design allows mix-and-match of different band cardsYou can add more cards as you go
  • 2. Remote Command and Control
    One connection (One IP) gives you bird’s-eye view of all daisy-chained units (One as a Host and the other 14 as Remotes)Allows multi-user access with different access rightsWeb-based GUI and no proprietary software required

  • 3. Dual Power Mode
    It handles up to 48dBm on High Power Mode and 38dBm on Low Power mode which allows for a lower insertion loss for low power radios of only 2~3.5dB.
  • 4. Power Monitoring
    It produces graphic charts for each card’s downlink input power changesPower level is measured every hour. Results are stored, analyzed and charted for one year worth of data.

  • 5. Built-in CW tone Generator
    With integrated CW tone generation, it streamlines CW test procedures without walkie-talking between two installers, significantly reducing DAS commissioning time.
  • 6. Safe Mode
    In the event of power failure, it bypasses to “Safe Mode” to ensure continuous service. The downlink path will maintain its attenuation levels with no change, and the uplink will default to 7.5dB insertion loss.
  • 7. Innovative Visual Block Diagram GUI
    User Interface design is so intuitive that we don’t believe one would need to read the user manual to set up and maintain the active SPOI.
    – When you daisy chain the units, remote units are automatically recognized and registered in the Host unit.

  • 8. Monitoring Ports
    Each card has a physical monitoring port for both uplink (3dB insertion loss) and downlink (30dB insertion loss), eliminating the need to put external couplers.
  • 9. “One-click” As-built Report
    With a single click of the mouse, users can download the entire daisy chain as-built report for site commissioning.
  • 10. Alarm Monitoring
    8 alarm parameters (DL input overpower, UP input overpower, DL input low power, LNA, FAN, PLL, DC and Temp.)SNMP V2c and V3 alarmsIt generates alarm report over the user-specified time period based on alarm counts and duration of the alarms.
  • 11. Perfect Match with the iSpectrum
    With the iSpectrum, it’s a match made in heaven. You can watch live RF performance of you system via the iSpectrum and if need be you can adjust your system gain through the active SPOI without putting your feet into the site.With one click, you will be transported from the active SPOI to the iSpectrum RF view screen. For example you change the gain setting on the SPOI, with a click of a button, you will be able to see the live RF signals to see how the gain change affects the signal.


RF Band  Card Specifications

SPOI Active Models
Parameter Downlink Uplink
High Power Low Power
Max. Input Power 48 dBm (60 Watt) 38 dBm (6 Watt) -10 dBm
Insertion Loss S700L, S700, S800S, S850, S800N 12 ± 0.5 dB 2 ± 1 dB 10.5 ± 1 dB
S1900, S2100, S2100N, S2300 13.5 ± 0.5 dB 3.5 ± 1 dB
S2600 16.5 ± 1 dB 6.5 ± 1 dB 12.5 ± 1 dB
Attenuation Range 0 – 40 dB /1 dB step 0 – 31 dB/ 0.5 dB step
PIM > 153 dBc @43 dBm x 2
CW Tone Level -10 dBm to +20 dBm
(-15 dBm to +15 dBm for S2600)
Power Consumption SP-MFC 21 W
RF Card 8.4 W for all FDD cards, 14.4 W for S2600


SPOI Active Models Available Cards
Model Description Downlink Freq. Uplink Freq.
S700L 700 MHz Lower A, B, C Band 728-746 MHz 698-716 MHz
S700 700 MHz Upper C Band 746-757 MHz 776-787 MHz
S800N 800 MHz Full SMR Band 851-869 MHz 806-824 MHz
S800S 800 MHz Partial SMR Band (Sprint) 862-869 MHz 817-824 MHz
S850 850 MHz Cellular Band 869-894 MHz 824-849 MHz
S1900 1900 MHz EPCS Band 1930-1995 MHz 1850-1915 MHz
S2100 2100 MHz AWS 1 Band 2110-2155 MHz 1710-1755 MHz
S2100N 2100 MHz AWS 1 & 3 Band 2110-2180 MHz 1710-1780 MHz
S2300 2300 MHz WCS Band 2350-2360 MHz 2305-2315 MHz
S2600 2600 MHz BRS Band 2496-2690 MHz
SPC2W 2×2-way Combiner/Splitter 698-2700 MHz
SPC4W 1×4-way Combiner/Splitter 698-2700 MHz

Combiner Specifications

Parameters Specification Remark
Type 2-way 4-way
Frequency Range 698 MHz to 2700 MHz
Insertion Loss 3.5 dB 6.8 dB Maximum
Return Loss 18 dB Minimum
Isolation 20 dB Minimum
Power Handling 10 Watts 40 dBm
Impedance 50 ohms
Number of Inputs 2 Ports (Dual) 4 Ports (Single)
RF Connectors QMA Type Female
Operating Temperature -13°F to 185°F
Dimension 6.9” x 1.88” x 9.8” H x W x D