Fiberoptic Repeaters

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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  
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+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  
Technical Support  
+1 (201) 342-3338 phone  
+1 (201)-342-3339 fax  
89 Leuning Street  
South Hackensack, NJ 07606  


      Remote Fiber Unit SER-RFU-2300
  • OFDM optimized output complies with SXM LB and HB Signal Specifications
  • High efficiency Power Amp for up to 8W (+39dBm)
  • ALC circuit for adjustment and leveling output
  • 39 dB Nominal Gain adjustable from 25-69 dB
  • Integrated ERMS Module for monitoring, alarming, and reporting of the LB and HB SXM signal quality
  • Integrated WCS Diplexer for combining the SXM LB and HB outputs with the WCS A thru D blocks
  • Single Fiber input, 0-10dB Optical Link
  • Remote Monitoring and Control
  • -48VDC input power capable
  • Natural convection cooled (no fans required)
  • IP-67 Outdoor rated -40 to +55 C mast mountable
  • Small form factor (13.94”L x 9.86”W x 5.24”D) 22 Lbs




The Remote Fiber Unit contains a Fiber to RF converter and pre-amplification and power amplification stages to elevate the SXM output to the desired level. An Automatic Leveling Control (ALC) loop adjusts the gain of the RFU to ensure a SXM High Band or Low Band output level no less than 17dB below the maximum composite WCS signal.
A built-in ERMS module samples the RF output of the RFU and provides demodulation of the Terrestrial HB and LB waveforms. 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.
The Remote Fiber Units also contain an integrated Diplexer that combines the SXM LB and HB outputs with the WCS A thru D blocks enabling the simultaneous transmission of the SXM signal with the AT&T WCS signal on a common output port.


Technical Description:

The CCI Fiber IP Repeater is a cost effective and easy to implement solution to provide high power distribution of SXM LB and HB transmission over the existing AT&T network. CCI’s 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.
CCI’s 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.




This is NOT a CONSUMER device. It is designed for installation by FCC LICENSEES and QUALIFIED INSTALLERS. You MUST have an FCC LICENSE or express consent of an FCC Licensee to operate this device. Unauthorized use may result in significant forfeiture penalties, including penalties in excess of $100,000 for each continuing violation.

Maintain a minimum separation distance from the Transmit Antenna to a person(s) of at least 60 cm. The qualified installer and/or end user of this RF device must control the exposure conditions to a minimum separation distance between the Transmit Antenna and any bystanders in order to ensure RF Exposure compliance.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at own expense.



RF Parameters Specification
Frequency Range 2324.244 - 2341.285 MHz
VSWR (Return Loss) 1.2:1 max. (20.8 dB min.)
  # of Carriers(COFDM/OFDM) Specification
RF Composite Power per Carrier 1 39 dBm*
2 36 dBm*
Downlink Output Tolerance ±0.5 dB (Over Frequency)
±0.5 dB (Over Temperature)
  Ports Specification
Nominal Gain INPUT - OUTPUT 53 dB
Gain Range INPUT - OUTPUT 38 to 69 dB adjustable in 0.25 dB Steps
Composite Input Power Nominal -15 dBm
Composite Input Power -30 dBm (@ max gain 69 dB)
In Band Spurious < -20 dBm / MHz for carrier bandwidth ≥4MHz @ +36 dBm Composite Output Power
Group Delay 200ηs @ center frequency and 1 m fiber length
  * PAR 8 dB @ 0.1% per carrier, crest factor of composite signal(2 carriers combined) ≤11 dB


Optical Parameters Specification
Optical Return Loss 45 dB min.
Optical Link Budget 0 to 10 dB


General Characteristics  
RF Input Impedance 50 ohms
Nominal Voltage 48 to 60 VDC
Operating Voltage 30 to 72 VDC
Power Consumption 70 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


Operating Temperature -33˚C to +55˚C
Ingress Protection IP67


WCS RF Connector 1 × 4.3-10 Female
COM RF Connector 1 × 4.3-10 Female
Optical Link Connectors TE FULL AXS
Fiber Type Single Mode Duplex E9/125 μm
Power Connector Amphenol C091D Series 3 pin receptacle
Dimensions: (Body Only)(H×W×D) 9.861 × 13.937 × 5.236 in. (250.48 × 354.0 ×133.0 mm)
(with Mounting Bracket)(H×W×D) 12.956 × 13.937 × 5.868 in. (329.07 × 354.0 ×149.04 mm)
Weight 22 lbs (10 kg)
Mounting Pole/Wall mounting bracket


  SER23002WEC Outline
  SER-RFU-2300 Outline Drawing


Block Diagram

  SER-RFU-2300 System Block Diagram
  SERFDUxS 3 sector site config
  Typical 3-Sector Site Configuration
  Simple Operation & Setup Interface
  SERFDUxS 3 sector site config
  Extensible Alarming/Monitoring
  Complete Signal Quality Metrics
  SS SERRFU2300 WCS SXM PR V1.0 200512
  WCS/SXM Power Ratio
  SERFDUxS 3 sector site config
  SER-RFU-2300 Remote Fiber Unit Front Panel View


SCU-AISG2-3 AISG 2.0 Site Controller
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-RFU-2300 Remote Fiber Unit
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)

Standards & Compliance

Safety UL 60950-1
Emission FCC Part 15B, FCC Part 25
Environmental EN 60529 IP67


Federal Communications Commission (FCC) Part 15 Class B, Federal Communications Commission (FCC) Part 25, ISO 9001
ISO9001Logo RoHS logo 3GPPLogo


89 Leuning Street

South Hackensack, NJ 07606

+1 (201) 342-3338

+1 (201) 342-3339 fax