cellular distribution system
Overview
OCC’s patented Cellular Distribution System (CDS) is a wireless enhancement product
designed to resolve low cellular signal strength issues for in-building applications.
Designed as a complete kit, the CDS system provides everything you need to mitigate
your 4G communications dead zones, while also supporting legacy 2G and 3G services
with a simplistic hardware approach in a standard rack mount form factor. The system
is based on a donor antenna architecture, whereby an antenna is placed at an external
location to capture the available signal from the provider’s tower, deliver it to a rackmounted system below which boosts the signal strength and then rebroadcasts it
throughout the building where internal antennas are placed.
The CDS system offers several distinct advantages:
•
CDS is a simple, cost effective solution compared to high end DAS
systems for area specific coverage enhancement, requiring no
Applications:
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•
•
•
•
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software configuration and minimal adjustment at installation.
•
Supports all providers with good signal strength
available where the donor antenna is placed.
•
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Manufacturing buildings
Office facilities
Retail stores
Metal building structures
Campus dorms
Building basements and below
surface structures
Hospital departments
Parking structures
A dedicated OCC technical support team available to assist in
designing and planning your in building enhancement system.
•
A complete solution, with all hardware including head end, antennas,
protection and cable assemblies designed to work optimally together.
In order to simplify the installation, preterminated and tested cable plenum and riser
assemblies can be ordered to length or low loss bulk cable and connectors are available.
*Dependant on outdoor signal and antenna cable lengths.
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cellular distribution system
Applications
A common building showing how the rear of the building is
‘shadowed’ from a provider tower, reducing signal strength at
the back side of the building.
A CDS system installed in the facility shows how the signal
captured by the external donor antenna is the transported
throughout the building.
Is CDS suitable for your building?
Though every building is a unique propagation environment, there are several signs that the OCC CDS is a good fit for resolving your
in-building wireless coverage issues:
1.
Your mobile device works well outside your building, but once you walk inside you cannot continue your conversation.
2.
Mobile devices work well near a window, but seem to lose service once you move to the center of the building.
3.
Cell service is good on upper floors, but degrades on lower floors and in basement.
4.
Measured signal strength for pertinent providers outside the structure is greater than -70 dBm.
CDS is designed to be easy to install and configure. OCC’s expertise and experience in resolving in-building wireless coverage problems
can make missed calls and poor data rates a thing of the past.
Practical considerations of a CDS installation
The CDS system is a wireless enhancement system, creating signal paths between mobile users located inside a building to the clear
carrier signal outside of the building, through an externally mounted donor antenna. The functional objective of the system to provide
a transmission pathway for users under the CDS footprint to the rooftop. However, each building is unique, and installations are often
non-ideal. Some practical considerations when installing a CDS system to ensure effective operation include:
1.
Isolation of internal antennas and the external antenna. To ensure the system does not
create a feedback noise situation, thus causing the unit to shut down, physical separation
of antennas should be maintained. Avoid mounting internal antennas close to windows
Outside Antenna
in close proximity to the donor antenna on the roof, and for facilities that require
multiple CDS systems, maintain 100 feet of separation of between donor antennas for
two separate CDS installations in the same building. If you have an exceptional signal
Inside
Antenna
strength at the outdoor antenna location, it may be feasible to run longer cable lengths,
both from the external antenna to the CDS unit, and from the CDS unit to the internal
antennas. Please contact OCC for technical assistance.
2.
Cable lengths are limited by attenuation, not by a specific maximum length. If a long length is required, OCC can supply a less
lossy cable that can be used to compensate for extended lengths.
3.
For regions where a weak provider signal exists, on the order of -85 dBm, a high gain antenna can be used to enhance service to
a single tower, however this may in turn worsen signal strength to other towers by the directivity often characteristic of high gain
antennas. If this is required, an additional donor antenna may be required.
4.
OCC can assist in all aspects of system design. Our experience in cellular system configuration can be used to design a system based
upon your unique environment.
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cellular distribution system
Installation Overview
Indoor
Antenna
CDS Panel
CDS location and internal antenna cabling plan for a mixed manufacturing and office facility
A sample CDS Installation overview
CDS is designed for general applications to be easy to install. The base kit contains a donor antenna (with mounting kit hardware),
four (4) omni directional indoor antennas, a surge arrester, and the rack mount CDS unit. To complete the material list, OCC offers
riser or plenum bulk coaxial cable and connectors or custom fabricated coaxial cable assemblies made to length. The figure above
demonstrates an application of CDS to a mixed manufacturing/office facility. After it was determined adequate signal strength was
available outside the facility, the donor antenna mounted accordingly and the rack mount CDS unit was located centrally inside the
facility, as shown above.
The following considerations were key in the system design:
1.
Provider signal strength was measured to be -65dBm for the wireless carrier, which is excellent for the CDS architecture.
2.
Cable length from the external donor antenna to the CDS unit was very short, <50 feet.
3.
Cable lengths to the internal antennas were somewhat long, but acceptable with a short donor antenna cable length.
4.
The CDS rack mount unit was located closer to the walled spaces of the structure, keeping the signal strongest for propagation
through dividing drywall structures between offices.
Application of CDS to this facility gave immediate improvement to cellular performance throughout the building, with excellent service
in all areas. Typical improvement in provider signal strength at the handset was ~ +25 dB gain, bringing signal strength inside the facility
to the same level as that experienced at the rooftop donor antenna location. 4G data rates were measured at 14 MB/s at the time of
testing, where no 4G service was available prior to the CDS installation.
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cellular distribution system
CDS 4G LTE System
Features & Benefits:
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Improves cell service in buildings
where service is poor or nonexistent
but is good at a nearby outside
location
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Simultaneously supports five provider
bands
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Easy to install - no software
configuration
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One external low-profile antenna, four
(4) internal omnidirectional broadband
ceiling-mount dome antennas
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Utilizes low-loss coaxial cable to
distribute cellular provider signals
throughout a building
•
Requires minimum -70 dBm cellular
service provider signal at the external
antenna location
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4 RU form factor
Specifications:
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80 dB average gain for all supported
provider bands
•
+ 27dBm RF Uplink, +27 dBm RF
Downlink maximum power
Operating Bands:
Uplink
Downlink
698 - 716
728 - 746
•
7 dB noise figure
776
- 787
746 - 757
•
FCC part 22 compliant as a low-power
824 - 849
869 - 894
cellular accessory
1710 - 1755
2110 - 2155
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Utilizes in-line coaxial lightning surge
1850 - 1910
1930 - 1990
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suppression
120 VAC power supply input
< 65 W power consumption
Applications:
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Coverage for up to 80,000 square feet, open space; 40,000 square feet walled space*
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Standards supported: CDMA, GSM, UMTS, WCDMA, HSPA (+), EVDO, LTE and all other standard cell phone networks
*Dependent on outdoor signal strength of donor antenna location, cable lengths and building materials
Ordering Information:
Part No.
Description
CDS4G-50-4D** 11266
Cellular Distribution System kit, rack-mount, enhances all 3G and 4G cellular provider bands
** Each CDS Kit includes: 1 – CDS panel, 4 – standard single ceiling-mount dome antenna, 1 - surge arrester, 1 – omnidirectional outdoor
antenna and mounting hardware
System design and cabling support consulting services available upon request. CDS.Support@occfiber.com
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cellular distribution system
CDS 3G System
Features & Benefits:
•
Improves cell service in buildings
where service is poor or nonexistent
but is good at a nearby outside
location
•
Simultaneously supports provider
bands at 1850-1990 MHz, and 824896 MHz
•
Easy to install - no software
configuration
•
One external low-profile dual-band
omnidirectional 3dBi gain antenna,
four (4) internal omnidirectional
broadband ceiling-mount dome
antennas
•
Utilizes low-loss coaxial cable to
distribute cellular provider signals
throughout a building
•
Requires minimum -70 dBm cellular
service provider signal at the external
antenna location
•
7 RU form factor
Specifications:
•
80 dB average gain for all supported provider bands
•
Utilizes standard 50 ohm N female connectors for all connectivity
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Maximum 3W power output
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5 dB noise figure
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FCC part 22 compliant as a low-power cellular accessory
•
< 40 W power consumption
•
Utilizes in-line coaxial lightning surge suppression
•
120 VAC power supply input
Operating Bands:
Uplink
Downlink
824 - 849
869 - 894
1850 - 1910
1930 - 1990
Applications:
•
Coverage for up to 80,000 square feet, open space, 40,000 square feet walled space*
•
Standards supported: CDMA / WCDMA, GSM, EDGE, TDMA, AMP etc.
*Dependent on outdoor signal strength of donor antenna location, cable lengths and building materials
Ordering Information:
Part No.
Description
CDS3G-50-4D**
Cellular Distribution System Kit, rack-mount, enhances all 3G cellular provider bands
** Each CDS Kit includes: 1 – CDS panel, 4 – standard single ceiling-mount dome antenna, 1 - surge arrester, 1 – omnidirectional outdoor
antenna and mounting hardware
System design and cabling support consulting services available upon request. CDS.Support@occfiber.com
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cellular distribution system
Accessories
The CDS product line includes several recommended accessories to ease the installation experience by ensuring the proper equipment
is available for the best possible enhancement of your in-building wireless service. These high-gain antennas and cabling accessories
have been tested and evaluated explicitly for use with the CDS system, to ensure your CDS rack-mount unit, cabling and antenna
components all function to the highest system level performance. Poor choice of antennas can inhibit the transmission in and out of the
building, and impedance mismatch and termination problems of cable assemblies can cause failure of active RF components over time.
Accessories:
Internal Antenna
High Gain Antenna
Surge Arrester
Ordering Information:
Part No.
Description
CDS-ANT4G
Donor antenna with mounting hardware
CDS-YAG4G
Yagi antenna with mounting hardware
CDS-ANTIND1
Indoor dome antenna
CDS-SURGE-N
Surge arrester
CDS-SPLIT-N
Simple splitter
CDS-COMB-N
Directional antenna combiner
CDS-TERM-50N
50 Ohm terminator
CDS-CONN-N 110359
N-type female connector
System design and cabling support consulting services available upon request. CDS.Support@occfiber.com
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cellular distribution system
Cable and Cable Assemblies
Bulk Cable Ordering Information:
Part No.
Description
COAX-400R-500
Bulk coaxial cable, riser, 500 ft.
COAX-400R-1000
Bulk coaxial cable, riser, 1,000 ft.
COAX-400P-500
Bulk coaxial cable, plenum, 500 ft.
COAX-400P-1000
Bulk coaxial cable, plenum, 1,000 ft.
Cable Assemblies:
Ordering Information:
Part No.
Description
CDS-NM400R-002
Coaxial cable assembly, riser, 2 ft., surge arrester assembly
CDS-NM400R-XXX
Coaxial cable assembly, riser, custom length
CDS-NM400P-XXX
Coaxial cable assembly, plenum, custom length
* Replace “XXX” with length in feet.
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cellular distribution system
Provisioning Guidelines
Warranty:
Each CDS kit is backed by a 1-year product
and a 6-month use assurance warranty from
OCC. The products must receive normal
and proper use and due care in handling.
Normal wear and tear, deterioration
due to aging or damage caused by
environmental conditions, electromagnetic
interference (“EMI”) or radio frequency
interference (“RFI”) shall not constitute a
defect or failure under this warranty. These
warranties do not cover defects resulting
from accidents, alteration, unauthorized
repair, misuse, fire, flood, lightning strike
damage, acts of God and or any diverse
changes in temperature and climate not
considered normal for an interior building
infrastructure. All installation records must
be updated to reflect any maintenance,
movements, additions or changes, and
such records shall be made available
to OCC upon request. This description
is intended only as a summary of the
warranty. Additional product warranty and regulatory information is available from OCC upon request and will be included in any project
proposal or CDS sale by OCC.
ATTENTION
This CDS4G product (the “System”) (OCC Data Product No. CDS4G-50-4D), comprised of one CDS4G panel, four internal antennas, internal
cabling and external antenna, has been verified as capable of compliance with Subpart B of Part 15 of the FCC’s rules, provided that the System
and each of its components are used for their intended purpose pursuant to the manufacturer’s instructions and authorized vendor’s installation
and provided that no modifications of any nature are made to the System or any of its component parts.
Operation of the System is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of this device. The signal booster component (FCC ID. RSNCM5000),
installed in the CDS4G panel is certified compliant with Part 22 and Part 24 of the FCC’s rules.
This System is designed to cause no interference to lawful users of licensed frequencies, but this does not constitute a guarantee or warranty that
no interference will occur.
Corporate Headquarters
5290 Concourse Drive | Roanoke, VA 24019 | USA
Phone: +1-540-265-0690 | 800-622-7711
Fax: +1-540-265-0724
occfiber.com
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08-2012