Fiberoptic Repeaters

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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  
 

head-fiberoptics

 
      Fiber Distribution Unit SER-FDU-xS
                
       
       
         
  SERFDUxS FV  
  • Built-in RF to Fiber Converters to distribute the SXM signals for up to four tower mounted Remote Fiber Units (RFU's) for power amplification and transmission over the AT&T network.
  • High Dynamic Range RF to Fiber Convewrter
  • Dual Ethernet Ports for Monitoring and Control by AT&T and Monitoring for SXM
  • High Linearity
  • -48 VDC input power capable
  • IP based Management and Control (M&C) via LAN and SNMP
  • Local Alarm Output and Monitoring
  • 1 RU 19" rack mountable
  • Four LC/UC Fiber Outputs

 

Overview

 

The Fiber Distribution Unit (FDU) provides the means to convert the RF input signal from the SXM Dual band exciter (DBE) into optical outputs that are used to distribute the SXM transmission to multiple Remote Fiber Units (RFU’s). The FDU also provides bi-directional digital fiber connections to the individual RFU’s to provide remote monitoring and control and reporting of real time signal quality metrics. An Automatic Leveling Control (ALC) and signal conditioning loop adjusts the gain of the FDU to ensure the optimal RF signal level to the input RF to Fiber Converter. Up to four optical fiber outputs are provided to distribute the SXM signal to multiple Remote Fiber Units.
The FDU provides a constant communication link with the built-in ERMS modules in the RFU’s. The ERMS provides health monitoring and alarming for the LB and HB SXM waveform. SXM Signal quality metrics such as RSSI, SINR, and RS Errors are reported to the FDU and can be monitored remotely.
Remote Monitor and Control is supported via Ethernet/SNMP. Local Maintenance and Control functionality is supported via the front panel. A second Ethernet port and a second set of dry contact relays are provided for alarm notification and real time monitoring of signal quality metrics of each remote repeater.

 

Technical Description:

The CCI Fiber IP Repeater is a cost effective and easy to implement solution to provide high power distribution of the SXM LB and HB transmission over the existing AT&T network. The CCI Dual Band Fiber Repeater is specifically designed to work with the SXM Dual Band Exciter (DBE) which accepts both High Band and Low Band UDP Stream inputs.
The Fiber IP Repeater consists of a single Fiber Distribution Unit (FDU) which supports up to four Remote Fiber Units (RFU’s) and contains an integrated RF to Fiber converter which converts the RF output from the DBE to four Fiber outputs that are used to distribute the SXM signals to multiple tower mounted Remote Fiber Units (RFU’s). The Remote Fiber Units (RFU’s) contain an integrated Fiber to RF converter and pre-amplification and power amplification for power transmission of the SXM LB and HB RF outputs over the AT&T network. The integrated WCS/SXM Diplexer eliminates the need for any other hardware on the tower or rooftop.
Remote Monitor and Control functionality of the Fiber IP Repeater is supported via Ethernet/SNMP. The NRCC can remotely access the FDU and its support peripherals. Local Maintenance and Control functionality is supported via the front panel. A second Ethernet port and a second set of dry contact relays are provided for alarm notification and to allow SXM to monitor the performance of the repeater system including real time monitoring of signal quality metrics of each remote repeater.

Electrical

RF Parameters Specification
Frequency Range 2324 - 2341.5 MHz
VSWR (Return Loss) 1.2:1 max. (20.8 dB min.)
Composite Input Power Nominal 0 dBm
Composite Input Power +15 dBm maximum, -10 dBm minimum
Group Delay 1ns @ center frequency and 1 m fiber length

 

Optical Parameters Specification
Optical Return Loss 45 dB min.
Optial Link Budget 0 to 10 dB
Composite Input Power Nominal 0 dBm
Composite Input Power +15 dBm maximum, -10 dBm minimum
RF Over Fiber Specification
RF Optical Wavelength 1310 nm
Optical Output Power 2 mW typical
SFDR ≥120 dB
Digital Over Fiber Specification
Digital Wavelength 1310 nm (Tx)/1550 nm (Rx)
Communication RS-232, RS-422, RS-485 Compliant

 

General Characteristics  
RF Input Impedance 50 ohms
Nominal Voltage 48 to 60 VDC
Operating Voltage 30 to 72 VDC
Power Consumption 8 W Nominal, 10 W Max.

 

System Supervision and Control Description
Web Interface Built-In (Indepndent ethernet ports for AT&T and SXM)
SNMP Interface Built-In (Indepndent ethernet ports for AT&T and SXM)
Alarms Summary & Configurable (separate alarm ports for AT&T and SXM)
Supervision Composite Output Power, Input Level Thresholds, Temperature, Optical Failure, Power Supply, SXM Signal Quality Parameters, Return Loss (VSWR)
Front Panel LED Status of each tower unit

Environmental

Operating Temperature -40˚C to +55˚C
Ingress Protection IP20

Mechanical

RF Input Connector 1 × NEX10 Female
Optical Link Connectors 4 x LC/UC Duplex
Fiber Type Single Mode E9/125 μm
Power Connector 1 x AMP SL-156 (3 pin male - 0.156 in. pitch)
Ethernet Connector 4 x RJ-45 (Dedicated ports for SXM and AT&T)
Alarm Connector 2 x Terminal Block (Dedicated contacts for SXM and AT&T)
Dimensions (w/Brackets)(H×W×D) 16.12 × 19 × 1.72 in. (409.45 × 482.6 ×43.69 mm)
Rack Units 1 RU
Weight 3 lbs (1.36 kg)
Mounting 19" Rack Mount

 

  SER23002WEC Outline
  SER-FDU-xS Outline Drawing

 

Block Diagram

  SERFDUxS BD
  SER-FDU-xS System Block Diagram
  SERFDUxS 3 sector site config
  Typical 3-Sector Site Configuration
  SERFDUxS BD
  Simple Operation & Setup Interface
  SERFDUxS 3 sector site config
  Extensible Alarming/Monitoring
  SERFDUxS BD
  Complete Signal Quality Metrics
  SERFDUxS 3 sector site config
  SER-FDU-xS Fiber Distribution Unit Front Panel View

Accessories

SCU-AISG2-3 AISG 2.0 Site Controller
RET-CBK AISG Cable Kit
BT-0723-DMDF-AG-O DIN-Male RF Port, DIN-Female RF+DC+AISG Port
BT-0723-DFDM-AG-O DIN-Female RF Port, DIN-Male RF+DC+AISG Port
BT-0723-DFDF-AG-O DIN-Female RF Port, DIN-Female RF+DC+AISG Port

Parts & Accessories

SER-FDU-1S Single Sector Fiber Distribution Unit (FDU)
SER-FDU-2S Two Sector Fiber Distribution Unit (FDU)
SER-FDU-3S Three Sector Fiber Distribution Unit (FDU)
SER-FDU-4S Four Sector Fiber Distribution Unit (FDU)
SER-RFU-2300 Remote Fiber Unit

Standards & Compliance

Safety UL 60950-1
Environmental EN 60529 IP20

Certifications

ISO 9001
 
ISO9001Logo RoHS logo 3GPPLogo
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89 Leuning Street

South Hackensack, NJ 07606

+1 (201) 342-3338

+1 (201) 342-3339 fax