Fiber Optic Distributed Antenna System Installation and Users Guide Copyright Andrew Corporation ERAU Version 1.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Proprietary Information This document is the property of Andrew Corporation. The information contained herein is proprietary to Andrew, and no part of this document may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of Andrew.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Andrew Corporation Andrew Corporation is a global designer, manufacturer, and supplier of communications equipment, services, and systems. Andrew products and expertise are found in communications systems throughout the world; including wireless and distributed communications, land mobile radio, cellular and personal communications, broadcast, radar, and navigation.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 1: InCell Fiber Optic Distributed Antenna System Description InCell Fiber Optic Distributed Antenna System Description Page 1-5 InCell™ Specifications Page 1-8 InCell Theory of Operation Page 1-9 Downlink Signal Flow Page 1-10 Uplink Signal Flow Page 1-10 1-4
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell Fiber Optic Distributed Antenna System Description The Andrew InCell™ Fiber Distributed Antenna System is designed to provide improved RF performance in buildings that suffer from poor wireless coverage. The InCell™ interfaces directly with a BTS or off-air antenna and distributes RF signals to indoor antennas that provide improved downlink and uplink performance.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Figure 1-1. InCell™ System Showing CDU and One ERAU The InCell DAS is designed to interface to the external wireless infrastructure in one of two ways: • • The InCell DAS can directly interface to an indoor base station through a coax jumper The InCell DAS can interface to outdoor base stations by means of an off-air antenna interface consisting of a donor antenna, cables and a bi-directional amplifier.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Andrew InCell n Unit istributio D l a tr Cen O *Andrew ite Compos er Cable ptical Fib Rem Andrew InCell nna Unit ote Ante *Indoor s Antenna *Indoor Antenna and Cables Not Included In Basic System Figure 1-2.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell™ Specifications Technical Performance The InCell technical specifications are summarized in Table 1-1. Table 1-1.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell Theory of Operation Since no two indoor coverage requirements are the same, in-building RF coverage solutions may involve one or a combination of RF coverage methods. Andrew can provide several solutions to optimize the indoor RF coverage for a wide range of indoor applications.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Downlink Signal Flow The downlink signal is the signal that is transmitted from the base station and received by the mobile phone. In the InCell™ Fiber Optic Distributed Antenna System, the CDU receives the downlink RF signal from a base station, converts the signal into six identical optical signals and distributes the optical signals to ERAUs that are located throughout a building.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 2: InCell™ Equipment Description CDU Description Page 2-2 CDU AC Power Interface Page 2-3 CDU RF Interface Page 2-3 CDU Optical Interface Page 2-3 CDU DC Power Output Interface Page 2-3 CDU Front Panel Page 2-3 CDU Rear Panel Page 2-4 InCell ™ Enhanced Remote Antenna Unit (ERAU) Page 2-6 ERAU RF Interface Page 2-6 ERAU Auxiliary DC Power Input Page 2-8 ERAU Page 2-8 Environmental and Mechanical Specifications
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System CDU Description The Central Distribution Unit (CDU) is the central hub of the InCell Fiber Optic Distributed Antenna System. The CDU is housed in a standard 1U tall, 19” rack mount chassis for mounting in equipment racks or telecom racks.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System CDU AC Power Interface To allow operation in a wide number of applications and locations, the CDU operates from international AC power. The CDU uses 100 to 240 VAC, 47 to 63 Hz. The CDU uses 10 watts of power. When a full system with all six of the RAUs is connected, the CDU uses 40 watts of power. When an external power supply for the ERAU is used, the CDU uses 10 watts of power.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Each of the six remote antenna ports also has one Link Alarm LED and one Power Alarm LED. These indicators provide the status of the Enhanced Remote Antenna Unit and the fiber optic uplink and downlink signal paths. The status indicators are discussed in the maintenance section of this manual.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System REMOTE ALARM REMOTE MONITORING RF RF POWER ILLUMINATOR MODEL: CENTRAL DISTRIBUTION UNIT ________________________________ 100-240 VAC, 47-63 Hz I 2000-1100-001 REV PART NO.: UL FILE NO.: FCC ID: SERNO.: O 40W, 0.6A MAX Figure 2-4. CDU Rear Panel RF RF D01-015 Figure 2-5. Type N RF Input/Output Connector POWER 100-240 VAC, 47-63 Hz I O 40W, 0.6A MAX D01-016 Figure 2-6.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System REMOTE ALARM D01-014 Figure 2-7. The D-Type Connector For CDU Remote Alarm Outputs InCell ™ Enhanced Remote Antenna Unit (ERAU) The Enhanced Remote Antenna Unit (ERAU) is the InCell™ component that is distributed within a building to provide the RF signal interface to the mobile phones. The ERAU interfaces to small indoor antennas to transmit the downlink signal to the mobile and to receive the uplink signal from the mobile phone.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System ERAU Optical Interface The ERAU optical interface is through a set of fiber optic connectors located on the front panel of the ERAU. The optical interface provides the uplink and downlink signal paths between the ERAU and the CDU. Each optical port consists of a pair of fiber optic links. The downlink path carries the optical signal from the CDU to the ERAU for transmission to the mobile phone.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System • • • • DC Power connector, ERAU: DC Power sockets, ERAU: DC Power plug, composite cable: DC Power pin, composite cable: Molex PN Molex PN Molex PN Molex PN 03-06-1022 02-06-1103 03-06-2023 02-06-2103 ERAU Auxiliary DC Power Input The ERAU is also provided with a DC power jack for supplying local power to the ERAU. The power jack accepts from +40 to +60 VDC. The ERAU will run cooler and have a longer lifetime if lower power is used.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Fiber Optic Connectors (Type SC/APC) To/From CDU N-Type Connector TX Remote DC Power RX PWR + J1 PWR J2 LINK AUX Power Input For Local Power Figure 2-9.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Environmental and Mechanical Specifications The CDU and ERAU environmental and mechanical specifications are summarized in Table 2-1. Table 2-1. InCell™ Environmental and Mechanical Specification Parameters CDU ERAU Enclosure Dimensions 1.75”H x 16.75”W x 12”D 1U, 19” rack-mountable 5.8" (147.3 mm) H x 20.0" (508.0 mm) W x 20.5" (520.
2-11 Figure 2-10.
2-12 Figure 2-11.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 3: InCell™ System Cabling CDU – ERAU Cabling Page 3-2 InCell System Cabling Flexibility Page 3-2 Composite Cable Page 3-4 Single Mode Fiber Optic Cable Page 3-5 Enhanced Remote Antenna Unit Power Distribution Page 3-5 Alternative System Cabling Methods Page 3-5 Cable Type Page 3-7 ERAU Power Page 3-7 Benefits Page 3-7 Fiber Optic Connectors Page 3-7 3-1
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System CDU – ERAU Cabling To connect an ERAU to any port of the CDU, the downlink and the uplink signals must be connected using single mode fiber optic cables with Type SC/APC connectors. Each CDU can interface with up to six ERAUs. For each of the six ports on the CDU, make the following connections: • • • Connect the D/L connector on the CDU to the D/L connector on the ERAU.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System RAU CDU Single Mode Fiber RF Downlink Laser Photo Diode RF Downlink Laser RF Uplink Single Mode Fiber Photo Diode RF Uplink +24VDC +12 - 28 VDC 18 AWG Power Supply 18 AWG Auxillary Power Jack Figure 3-1.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Composite Cable The cable used between the CDU and each ERAU is typically a composite cable consisting of two single-mode optical fibers and two copper conductors lines as shown in Figure 3-2. Andrew composite cable is rugged, flexible and has a small diameter, making it very easy to install.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System 0.50" Single Mode Fiber (9/125) 18 AWG Insulated Copper (Red) 18 AWG Insulated Copper (Black) 0.25" Aramid Yarn Strength Member Single Mode Fiber (9/125) Plenum Rated Outer Jacket (Yellow) Figure 3-2. Cross Section of Andrew Composite Fiber/Copper Cable Single Mode Fiber Optic Cable Single mode fiber optic cable is used in the InCell™ products because of its wide bandwidth and loss attenuation characteristics.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System With local power provided to the ERAU, a duplex single mode fiber optic cable may be used to provide the uplink and downlink signals between CDU and ERAU. Also, two separate single mode fiber optic cables can be used between the CDU and the ERAU if local power is provided. Different wiring configurations allow designers to determine the most cost effective solution and to install remote antennas further than 1000’ away from the CDU hub.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Table 3-1.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System As with any fiber optic connector, the optical end should be kept clean and be dusted with airspray prior to insertion into a SC/APC to SC/APC adapter on the CDU or ERAU. If good optical contact is not maintained, there can be link failure or high noise figure, as considerable back reflections could result in a higher-than-normal noise floor in the antenna link.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 4: In-Building Implementations Using the Andrew InCell™ System InCell™ Installation Parameters Page 4-2 InCell CDU Installation Page 4-2 Scalable System Architecture Page 4-4 InCell ERAU Installation Page 4-5 Typical Base Station Interface Implementation Typical Off-Air Interface Implementation Operation Preventative Maintenance Fault Repair Technical Support Page 4-6 Page 4-7 Page 4-8 Page 4-8 Page 4-8 Page 4-8 4-1
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell™ Installation Parameters Installation times will depend on the size of each installation; however, Andrew can provide rough guidelines for installing the CDU and ERAU that may be used to determine the total system installation time once the number of equipment parts is determined.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Unused CDU Ports Any ports on the CDU that are not connected to an ERAU will cause the built-intest system in the InCell system to indicate a link error condition. This error condition will be seen on the CDU front panel Link indicators and will also appear as a Link error at the Alarm output. In order to not set off the alarm, each unused CDU port must have a simplex fiber optic jumper cable between the U/L and D/L fiber optic connectors.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Scalable System Architecture The InCell™ distributed antenna system is a scalable system that can be configured to support small or large numbers of remote antennas, depending on the building size. Very large systems may be configured by using standard power divider/combiners to combine multiple CDUs together.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell ERAU Installation ERAUs are typically mounted on walls or ceilings throughout the building according to a design drawing. ERAUs may also be mounted in ceiling rafters, beams or on to poles. Upon application of system power, indicators on the ERAU give the installer a visual indication of ERAU power and link status. Allow 45 minutes for installing the ERAU and connecting the antenna, fiber and power cables.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Typical Base Station Interface Implementation Figure 4-2 shows an InCell DAS connected to a base station. The InCell CDU interfaces directly to a base station using coax jumpers. Typically, the CDU is located in the same equipment closet with the base station. If signals from more than 1 base station are to be distributed by the InCell DAS, they must be combined using external power divider/combiners.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Typical Off-Air Interface Implementation Figure 4-3 illustrates a small off-air implementation using an Andrew GridPACK donor antenna, an Andrew repeater and a single InCell™ Central Distribution Unit driving up to six Enhanced Remote Antenna Units. The donor antenna and extender can be replaced with other RF inputs, such as another off-air interface, a base station, or distribution unit depending on the application.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Operation InCell™ system operation is continuous. Andrew recommends using an uninterruptible power supply (UPS) to provide power to the CDU and external power supply. If the system design uses composite cable to provide power to the Enhanced Remote Antenna Units located throughout the building, the UPS can keep the CDU and all ERAUs powered and operational during brownouts and power outages.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 5: InCell™ Network Monitoring System Pilot Tone Generation Page 5-2 ERAU Front Panel Indicators Page 5-2 CDU Front Panel Indicators Page 5-3 CDU Alarm Functions Page 5-3 Remote Monitoring Functions Page 5-4 5-1
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System The InCell™ family is designed to minimize maintenance and monitoring costs. Provisions are made for both local and remote monitoring of small and large systems.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System CDU Front Panel Indicators The POWER indicator for each port of the CDU indicates that the DC power is present at that port. If the CDU POWER indicator is green, power is good at that CDU port, also indicating that the internal AC power supply is good. If the POWER indicator for one CDU port is off, there is problem with that CDU port interface.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Table 5-3. System Alarm Monitoring Condition ALARM LINK Open Short Short Open X X Power Off All Good, No Problems All Links Good Link Bad Power Good Power Bad POWER Open Short X X Short Open Unused CDU Ports Any ports on the CDU that are not connected to an ERAU will cause the built-intest system in the InCell system to indicate a link error condition.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System In the second method, a separate 1U chassis is required to act as the SNMP agent. The SNMP agent allows a network management system to monitor InCell™ device(s) by telephone or network connection using industry standard interfaces. The SNMP agent performs network management operations such as setting configuration parameters, alarm notification and current operation statistics.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System RS485 SERIAL INTERFACE NETWORK RF REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM REMOTE ALARM RF RF RF RF POWER 100-240 VAC RF RF POWER 100-240 VAC RF RF POWER 100-240 VAC RF RF POWER 100-240 VAC RF RF POWER 100-240 VAC RF RF POWER 100-240 VAC RF RF
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 6: Fiber Optic Cable Installation Guide Note to Customers and Installers Page 6-2 InCell Fiber Optic Cables Page 6-2 Installation Warnings Page 6-3 Testing Cables Page 6-3 Cleaning Connectors Installing Fiber Optic Connectors Installing DC Power Connectors Connecting Cables to Equipment Page 6-3 Page 6-4 Page 6-4 Page 6-5 6-1
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Note to Customers and Installers This installation guide is to inform customers and installers of the special requirements for installing the fiber optic cables used for the InCell™ Distributed Antenna System (DAS). This guide discusses several key differences that customers and installers should be aware of before starting the installation.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Installation Warnings • • • • Damage! – Observe the minimum band radius of the fiber optic cable. Ensure that the cable is never bent with smaller than a 2-inch bend radius. The cable may be permanently degraded or may be weakened in a way that may cause failure later on. Damage! – Angled (APC) and non-angled (PC) connectors should never be mated.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Cable Installation • • • When pulling cables through buildings, always ensure that the cable is pulled through the building with the stress on the rugged outer jacket of the cable, not on the ends. Warning - Damage can occur to connectorized cable assemblies if they are not protected when being pulled. Damage will result in significant loss of performance.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Connecting Cables to Equipment • • • • Ensure that the fiber optic cable has proper cable strain relief so that the cable is not stressed. While this may not cause a failure during installation, it may lead to potential reliability problems later. Also verify that the cable is not bent over the minimum bend radius.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Section 7: InCell™ Accessories Composite Cable Assemblies Page 7-2 InCell Fiber Optic Jumper Cables Page 7-2 InCell Composite Cable Connector Kit Page 7-2 InCell CDU Wall Mount Brackets Page 7-2 InCell CDU Rack Mount Hardware Kit Page 7-2 InCell CDU Rack Mount Brackets Page 7-2 InCell Signal Distribution Unit (SDU) Fiber Optic Cable Puller Cell-Max™ Indoor Omni Antennas Cell-Max™ Indoor Directional Antennas Page 7-3 Page 7-3 P
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System Composite Cable Assemblies Andrew part number AE04J-A0578-XXX is the part number for fully assembled and tested composite fiber optic cable assemblies, where XXX denotes the cable length in meters. These composite cables are plenum rated and have two 18 gauge copper wires and four single mode fiber optic cables.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System InCell Signal Distribution Unit (SDU) Andrew part number AE04A-D0634-003 is a 19” rack mount, 8-way power divider for use in large in-building coverage systems, combining or dividing signals for 8 CDUs. The wide 800 to 2000 MHz range allows it to be used in InCell systems providing coverage for SMR, cellular, GSM 900, DCS 1800 and PCS frequency bands. The SDU is 1U in height (1.75”) and has 9 Type N connectors on the front panel.
Users Guide - Andrew InCell™ Fiber Optic Distributed Antenna System AVM0918-1006-02SM connector. US bands. Broadband directional antenna, 6 dBi, 870-960/1710-2170 MHz 2-meter pigtail cable with SMA male connector. European bands.