FCC ID: F8I-DISSMRAA, Partial User Manual, 2 of 4 ADCP-75-136 • Issue 1 • November 2002 (1) GROUND STUD (3) AC POWER ON/OFF SWITCH (2) AC POWER CORD CONNECTOR NOTE: SHOWN WITHOUT CABLE MANAGEMENT TRAY (4) OPTICAL PORT LED INDICATOR (6 PLACES) (5) OPT/ELEC PORT ENABLE/DISABLE SWITCH (6 PLACES) (8) UNIT LED INDICATOR (11) RF INPUT CONNECTOR (6) ELECTRICAL PORT (7) OPTICAL PORT (10) ALARM (9) OVERDRIVE (12) RF OUTPUT DC POWER JACK OPTICAL TRANSCEIVER CONNECTOR LED CONNECTOR (6 PLACES) TX-LEFT - RX-RIG
ADCP-75-136 • Issue 1 • November 2002 2.2.1 Primary Components The DRU consists of an electronic circuit board assembly that is mounted within a powdercoated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic assembly, serves as a heat sink, and controls RF emissions. Except for the optical transceiver, the DRU components are not field replaceable. The DRU is designed for use within a noncondensing indoor environment such as inside a building.
ADCP-75-136 • Issue 1 • November 2002 connector. Power to the DRU may be supplied by the DHU, DEU, or by a 120 Vac to 48 Vdc power converter (available separately as an accessory item) plugged into a properly grounded 120 Vac outlet. The ac/dc converter is a UL Listed stand-alone Limited Power Supply (LPS) unit with a rated output of 48 Vdc at 1.2 Amps. When powered by the DHU or DEU, a category 3 or 5 twisted-pair cable terminated with RJ-45 connectors is required. 2.2.
ADCP-75-136 • Issue 1 • November 2002 2.3 Digital Expansion Unit Description The DEU, shown in Figure 6, serves as a service expansion unit and line extender for the Digivance ICS.
ADCP-75-136 • Issue 1 • November 2002 mounted in either a 19-inch or 23-inch EIA or WECO equipment rack. When rack-mounted, the front panel of the DEU is flush with the front of the rack and the cable management tray extends 3.9 inches (99 mm) beyond the front panel. For wall-mount applications, a pair of holes is provided in the cable management tray which allow the DEU to be mounted on any flat vertical surface. The DEU should be oriented with the front panel facing upward when wall-mounted.
ADCP-75-136 • Issue 1 • November 2002 Table 3. Digital Expansion Unit User Interface REF No. USER INTERFACE DESIGNATION FUNCTIONAL DESCRIPTION DEVICE 1 Grounding stud Used for connecting a grounding cable to the DEU chassis. 2 POWER 3-wire AC power cord connector Used for connecting the AC power cord. 3 I/O I/O rocker switch/ circuit breaker Provides AC power On/Off control and AC power over current protection.
ADCP-75-136 • Issue 1 • November 2002 2.4 Terms and Definitions Refer to Table 4 for a listing of the terms used in this manual and their definition. Table 4. Terms and Definitions TERM DEFINITION Alarm Response The response to an alarm input. Base Transceiver Station The radio equipment that transmits and receives the voice and control channels to and from the cellular handsets. Composite Signal A signal that is the sum of several signals.
ADCP-75-136 • Issue 1 • November 2002 Table 5. System Specifications PARAMETER SPECIFICATION REMARKS Multi-mode: 50 or 62.5 micron core Single-mode: 9 micron core Two fibers per transport link Maximum fiber length for guaranteed performance 500 m (1,641 ft) 750 m (2461 ft) 10 km (32,808 ft) With 62.
ADCP-75-136 • Issue 1 • November 2002 Table 5. System Specifications, continued PARAMETER SPECIFICATION REMARKS Physical/Electrical – DHU Weight 18.5 lbs (8.
ADCP-75-136 • Issue 1 • November 2002 3 INSTALLATION PLANNING AND SYSTEM DESIGN This section provides installation planning information and basic system design recommendations for RF engineers that will be designing and installing an in-building coverage solution using the Digivance ICS. System design and planning services are available from ADC if required. Refer to Section 7 of this manual for additional information. 3.
ADCP-75-136 • Issue 1 • November 2002 3.1.2 Remote BTS (Cell Site Base Station) Interface A remote interface between the DHU and the BTS (cell site base station) via a donor antenna requires specific RF input and output signal levels at the DHU and antenna. The correct levels at the DHU and antenna can be provided using a remote interface device (ancillary product). A block diagram of a typical remote DHU to BTS interface is shown in Figure 9.
ADCP-75-136 • Issue 1 • November 2002 For wall-mount applications of the DHU or DEU, a pair of holes is provided in the cable management tray that allows the unit to be mounted on any flat vertical surface. The mounting holes are spaced 11-21/32 inches (296 mm) apart. The DHU/DEU should be oriented so the front panel faces up when mounted. Appropriate fasteners for wall mounting must be provided by the installer.
ADCP-75-136 • Issue 1 • November 2002 If back-up powering is required, it is recommended that the building Uninterruptible Power Supply (UPS) system be used to provide back-up power to the DHU and DEU in the event of an AC power outage. This will also power all the DRU’s that are powered by the DHU or DEU. 3.3.2 DRU Powering The DRU is powered by 48 Vdc power which is input to the DRU through the front panel RJ45 connector.
ADCP-75-136 • Issue 1 • November 2002 62.
ADCP-75-136 • Issue 1 • November 2002 required to link the DHU with the interface device and the interface device with the BTS. In a remote interface, coaxial cables are required to link the DHU with the interface device and the interface device with the donor antenna. The DHU is equipped with N-type female connectors for connecting the forward and reverse path coaxial cables.
ADCP-75-136 • Issue 1 • November 2002 Note: To comply with Maximum Permissible Exposure (MPE) requirements, the maximum composite output from the antenna cannot exceed 1.5 Watts ERP and the antenna must be permanently installed in a fixed location that provides at least 20 centimeters (8 inches) of separation from all persons per FCC 47 CFR part 2.1091. ALL ANTENNAS ARE EQUIPPED WITH A 72-INCH RG58/U CABLE TERMINATED WITH A MALE SMA CONNECTOR MOUNTING STUD LENGTH - 1.5 INCHES (38 mm) DIAMETER - 0.
ADCP-75-136 • Issue 1 • November 2002 3.9 Maintenance Requirements The Digivance ICS requires no regular maintenance to insure continuous and satisfactory operation. Maintenance, as it applies to the Digivance ICS, primarily involves diagnosing and correcting service problems as they occur. Faults and failures arising from within the Digivance ICS will generate an external alarm response which includes lighting an LED indicator(s) and closing or opening a set of alarm contacts.
ADCP-75-136 • Issue 1 • November 2002 building personnel for an initial approval/confirmation. This gives a good estimate of the extent of the system work needed. Occasionally, some of the system design work can be accomplished at this point. 3.10.
ADCP-75-136 • Issue 1 • November 2002 3. Conduct an initial performance evaluation and complete the following: a) Confirm proper isolation, signal quality, and power levels. b) Make test calls from DRU service area and evaluate call quality (confirm with service provider if desired). c) Address performance issues as needed. 4. Install the remaining DRU’s and also any DEU’s as described in the Digital Expansion Unit Installation Instructions (ADCP-75-111). Test call quality and range of each DRU as needed.
ADCP-75-136 • Issue 1 • November 2002 4 DIGITAL HOST UNIT INSTALLATION PROCEDURE This section provides the installation procedures for the DHU. Installation of the DEU(s) and DRU(s) may proceed separately from the installation of the DHU. The installation procedures for the DEU are provided in the Digital Expansion Unit Installation Instructions (ADCP -75111) which are shipped with the DEU.
ADCP-75-136 • Issue 1 • November 2002 The following materials are required in order to complete the procedures in this section: • Wall-mount fasteners (wall-mount applications only) • #22 AWG (0.40 mm) category 3 or 5 cable (for power cable and external alarm connections) • RJ-45 male connectors (for power cable) • #18 AWG (1.00 mm) insulated stranded copper wire (for chassis grounding wire) • Ring terminal for #18 wire (for chassis ground wire connection) • 50 or 62.
ADCP-75-136 • Issue 1 • November 2002 Warning: Wet conditions increase the potential for receiving an electrical shock when installing or using electrically-powered equipment. To prevent electrical shock, never install or use electrical equipment in a wet location or during a lightning storm. Use the following procedure to install the DHU in the equipment rack: 1. The DHU is shipped with the mounting brackets installed for 19-inch rack installations.
ADCP-75-136 • Issue 1 • November 2002 5. Secure the mounting brackets to the rack using the four machine screws provided (use #12-24 screws or M6 x 10 screws, whichever is appropriate). Note: Provide a minimum of 3 inches (76 mm) of clearance space on both the left and right sides of the DHU for air intake and exhaust. 4.4.2 Wall-Mount Installation The DHU may be mounted from any flat vertical surface.
ADCP-75-136 • Issue 1 • November 2002 3. Using the DHU as a template, mark the location of the mounting holes on the mounting surface. Note: The mounting holes in the DHU cable management tray are spaced 11-21/32 inches (296 mm) center to center. 4. Set the DHU aside and then drill appropriately sized holes in the mounting surface for the fasteners. 5. Partially install the fasteners in the drilled holes. Leave the head of each fastener protruding about 1/4 inch (6 mm) from the mounting surface. 6.
ADCP-75-136 • Issue 1 • November 2002 4.6 Coaxial Cable Connections The RF interface between DHU and the BTS is supported through a pair of type N female connectors mounted on the DHU front panel. One connector provides the coaxial cable connection for the forward path (downlink) signal. The other connector provides the coaxial cable connection for the reverse path (uplink) signal. Coaxial cables link the DHU to the BTS through an interface device.
ADCP-75-136 • Issue 1 • November 2002 4.7 Modular Optical Transceiver Installation The modular optical transceivers are available separately and may or may not be installed in the DHU depending on the configuration ordered. If the optical transceivers are factory installed in the DHU, skip this section and proceed to Section 4.8. If the optical transceivers are not factory installed, use the following procedure to install each transceiver: 1.
