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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
 
89 Leuning Street  
South Hackensack, NJ 07606  
USA  
 
Technical Support  
 
 
+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
 
89 Leuning Street  
South Hackensack, NJ 07606  
USA  
 
 
      DAS Interface Module DAST-700-MODx
                
       
       
         
  PI DAST700MOD FV  
  • A common connection point for Upper and Lower Band  LTE Base stations to a single DAS system
  • Levels and equalizes performance for all base stations with Integrated Level Controls
  • No need to attenuate signals prior to connection to the DAS Tray
  • Modules “A” and “B” are 2U (3.5”) High. Any 2 modules can mount in CCI’s 19” Rack Mount Universal DAS Tray
  • Two additional Rx connections provided for Rx Only BTS ports, E911 or Uplink Monitoring

Overview

 

 CCI’s 700 MHz DAS Interface Modules provide an integrated, convenient, and single connection point when using single or multiple LTE base stations with a common DAS system.  The unique architecture of the CCI DAS Interface Modules can accommodate both MIMO and SIMO configurations, including two operators providing MIMO coverage on a common MIMO DAS System.  The internal triplexers utilized in the Interface Modules can simultaneously cover both ‘Upper’  and ‘Lower’ 700 MHz band such that the same Interface Module can be used for either band implementation.

Integrated leveling controls are provided in both the uplink and downlink path in order to achieve the proper link balance to the DAS system for each base station channel.  The LTE E-Node B’s are connected directly to the DAS Interface Module without the need to attenuate power as the DAS tray provides integrated high power attenuation for each channel with an adjustment range of 30 dB with 1 dB increments for the TX path, and 10 dB with 1 dB increments for the RX path. The DAS Tray is a completely passive assembly with no external power requirement thus providing the highest reliability and convenient installation.  An optional duplexed connection To/From DAS is available on MODA (Module A).

Configuration Diagram

  LTE MIMO and SIMO Configuration Diagrams
  CD DAST700MODA Simplified Figure I CD DAST700MODA Simplified Figure II
  Figure I - Shared Dual MIMO E-Node B Configuration with MIMO Output to DAS System Figure II - Single MIMO E-Node B Configuration with MIMO Output to DAS System 
   CD DAST700MODA Simplified Figure III  CD DAST700MODA Simplified Figure IV
  Figure III - Single SIMO E-Node B Configuration with SIMO Output to DAS System Figure IV - Shared Dual SIMO E-Node B Configuration with SIMO Output to DAS System
  CD DAST700MODA Simplified Figure V  
  Figure V - Single MIMO E-Node B Configuration with SIMO Output to DAS System  

Electrical Specification

RF Parameters Ports Frequency(MHz) Specification  
      DAST-700-MODA DAST-700-MODB
Return Loss TX/RX 698 - 716 18 dB Typ.
728 - 768 18 dB Typ.
776 - 798 18 dB Typ.
RX 698 - 716 18 dB Typ.
776 - 798 18 dB Typ.
RX IN 698 - 716 18 dB Typ.
776 - 798 18 dB Typ.
TX OUT 728 - 768 18 dB Typ.
TX IN 728 - 768 18 dB Typ.
Insertion Loss TX/RX to TX OUT 728 - 768 18.5 - 48.5 dB, adjustable in 1dB steps 14 dB avg.
TX IN to TX OUT 728 - 768 4.5 - 34.5 dB, adjustable in 1dB steps N/A
RX IN to TX/RX 698 - 716 9 - 19 dB, adjustable in 1dB steps 1 dB avg.
776 - 798 9 - 19 dB, adjustable in 1dB steps 1 dB avg.
RX IN to RX 698 - 716 9 - 19 dB, adjustable in 1dB steps N/A
776 - 798 9 - 19 dB, adjustable in 1dB steps N/A
Isolation TX/RX to RX IN 728 - 768 65 dB plus variable attenuator setting 60 dB
TX/RX to RX 728 - 768 80 dB N/A
General Characteristics  
Impedance 50 ohms
Continuous Average Power 100 W max. at TX/RX port
Peak Envelope Power 2 kW max.
Intermodulation Performance <-118 dBm (-161 dBc) typical (2 × +43 dBm tones)

Environmental Specification

Operating Temperature   0˚C to +55˚C
MTBF   >500,000 hours 

Mechanical Specification

Model   DAST-700-MODA DAST-700-MODB
TX/RX IN Connectors   7-16 DIN female 7-16 DIN female
RX IN Connectors 2 × 7-16 DIN female; 1 × N-Female 1 × N-female
TX IN Connectors 1 × N-female 1 × N-female
TX OUT (to DAS), RX IN (from DAS) Connectors 1 × QMA female each NA
Dimensions (H(2U)×W×D) 3.5 × 8.772× 16 in. (88.9 × 222.8 × 406.4 mm) 3.5 × 8.772× 16 in. (88.9 × 222.8 × 406.4 mm)
Weight (w/o Bracket) 18.9 lbs (8.6 kg) 17.1 lbs (7.75 kg)
Mounting Mount in Universal DAS Tray (TRA-DAS-UNIV 19 in. Rack Mountable)

 

 

Block Diagram

  LTE MIMO and SIMO Configuration Detailed Diagrams
  CD DAST700MODA Detailed Figure I
  Figure I - Shared Dual MIMO E-Node B Configuration with MIMO Output to DAS System
  CD DAST700MODA Detailed Figure II CD DAST700MODA Detailed Figure III
  Figure II - Single MIMO E-Node B Configuration
with MIMO Output to DAS System
Figure III - Single SIMO E-Node B Configuration with SIMO Output to DAS System
  CD DAST700MODA Detailed Figure IV CD DAST700MODA Detailed Figure V
  Figure IV - Shared Dual SIMO E-Node B Configuration with SIMO Output to DAS System Figure V - Single MIMO E-Node B Configuration with SIMO Output to DAS System
  Options
   CD DAST700MODA Detailed Figure VI
  -DPX "Single Duplexed connection To/From DAS" (on MODA only) Note: adds 3 dB to Transmit and Receive Insertion Loss 

Accessories

     

Parts & Accessories

Configuration  Configuration Description Quantity: DAST-700-MODA "700 MHz DAS Module A" required Quantity: DAST-700-MODA "700 MHz DAS Module B" required Quantity: TRA-DAS-UNIV "Universal Tray for DAS Interface Modules" required
I Shared Dual MIMO E-Node B Configuration with MIMO Output to DAS System 2 2 2
II Single MIMO E-Node B Configuration with MIMO Output to DAS System 2 - 1
III Single SIMO E-Node B Configuration with SIMO Output to DAS System 1 - 1
IV Shared Dual SIMO E-Node B Configuration with SIMO Output to DAS System 1 1 1
V Single MIMO E-Node B Configuration with SIMO Output to DAS System 1 1 1

Certifications

Federal Communication Commission (FCC) Part 15 Class B, CE, CSA US
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89 Leuning Street

South Hackensack, NJ 07606

+1 (201) 342-3338

+1 (201) 342-3339 fax