FCC ID: F8I-DVLRCSPCS - User Manual - Part 2 ADCP-75-126 • Issue B • April 2002 • Section 2: Description 4 SPECTRUM TRANSPORT MODULE The Spectrum Transport Module (STM), shown in Figure 2-5, serves as the handset servicing device for the Digivance LRCS. The STM provides the following basic functions: • Provides an RF interface (antenna ports) to the remote antenna(s). • Provides an optical interface to the HU. • Converts the digitized forward path optical signal to a digitized RF signal.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description 4.1 Primary Components The STM consists of an electronic circuit board assembly, power supply, duplexer, and fan assembly that are mounted within a powder-coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan unit, the electronic components are not user replaceable. The STM is designed for use within the RU cabinet.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description The attenuator can be set in 1 dB increments. The attenuator is software controlled and is adjusted through the NOC/NEM interface or the EMS software GUI. 4.6 Optical Connection Fiber optic connections between the STM and the HU are supported through either two (nondiversity unit) or three (diversity unit) SC-type optical connector ports.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description (1) PORT 1 CONNECTOR (2) PORT 2 CONNECTOR (3) PORT 3 CONNECTOR (7) SERVICE CONNECTOR (4) ON/OFF SWITCH (8-15) LED INDICATORS (5) AC POWER CONNECTOR (16) ALARM CONNECTOR (6) DC POWER CONNECTOR (18) ANTENNA CONNECTOR (17) DIVERSITY ANTENNA CONNECTOR NOTE: UNIT SHOWN INCLUDES DIVERSITY OPTION 17527-A Figure 2-6. Spectrum Transport Module User Interface Table 2-3.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Table 2-3. Spectrum Transport Module User Interface, continued REF NO USER INTERFACE DESIGNATION DEVICE FUNCTIONAL DESCRIPTION 8 AC POWER Multi-colored LED (green/red) Indicates if the STM is powered by the AC power source (green) or the back-up battery system (red). See Note.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description LPA 1940 17546-A Figure 2-7. Linear Power Amplifier 5.1 Primary Components The LPA consists of several electronic circuit board assemblies and two fan assemblies that are mounted within a powder-coated sheet metal enclosure. The metal enclosure provides a mounting point for the electronic components and controls RF emissions. Except for the fan units, the electronic components are not user replaceable.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description 5.3 Fault Detection and Alarm Reporting The LPA in conjunction with the STM detects and reports various faults including power amplifier fault, output power fault, temperature fault, and fan fault. Various Light Emitting Diode (LED) indicators, located on the front panels of both the STM and LPA, turn from green to red or yellow if an LPA fault is detected.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description LPA 1940 (1) RESET SWITCH (2) RF ON/OFF SWITCH (3) FAIL LED (4) SHUTDOWN LED (5) DIGITAL DISPLAY 17545-A Figure 2-8. Linear Power Amplifier User Interface 6 DIGIVANCE ELEMENT MANAGEMENT SYSTEM The Digivance Element Management System (EMS) is a network management tool that provides control and monitoring functions for the Digivance LRCS system.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description OR PLUS 16803-A CD-ROM WITH EMS SOFTWARE Figure 2-9. Alarm Network Unit The EMS software may also be installed on a PC-type lap-top computer (not provided). A laptop version of the EMS computer can be used as a portable network management tool for service and maintenance purposes.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description 6.4 EMS Software User Interface The EMS software provides two user interfaces: the Graphical User Interface (GUI) and the Network Operation Center-Network Element Manager (NOC/NEM) interface. Both interfaces provide essentially the same functionality except only the GUI can upgrade the LRCS system with new system software. In addition, only the NOC/NEM interface can record and playback alarm data.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Figure 2-11. NOC/NEM Interface Typical Commands 7 SPECIFICATIONS Refer to Table 2-5 for the Digivance 1900 MHz LRCS system nominal specifications. All specifications apply after a five minute warm-up period. Table 2-5.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Table 2-5.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Table 2-5. 1900 MHz System Nominal Specifications, continued PARAMETER SPECIFICATION Composite RF Output power 43.5 dBm (22.4 Watts) at remote 40 Watts at power amplifier outantenna port with –40 dBm input put Configurable RF Output Range Step size Transmit path insertion loss RF Reverse Path - 1900 MHz System bandwidth Frequency range AD DBE BEF EFC 30 dB at remote unit 1 ±0.5 dB ±10% of attenuation monotonic 2.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Table 2-5. 1900 MHz System Nominal Specifications, continued PARAMETER SPECIFICATION REMARKS 3.5 × 17.2 × 15.3 inches (89 × 437 × 389 mm) Dimension for width does not include the mounting brackets which can be installed for either 19- or 23-inch racks. Mounting 19- or 23-inch rack EIA or WECO Weight 18 lbs. (8.
ADCP-75-126 • Issue B • April 2002 • Section 2: Description Table 2-5.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation SECTION 3: HOST UNIT INSTALLATION Content 1 Page BEFORE STARTING INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1 1.2 Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation • • • • • • • • TORX screwdriver (T20 bit) Pliers Wire cutters Wire stripper Tool kit for attaching N-type male connectors to coaxial cable Multimeter Optical power meter Laser light source The following materials are required to complete the procedures in this section: • • • • • • • • • 1.2 #18 AWG (1.0 mm) insulated stranded copper wire (for chassis grounding wire) #18 AWG (1.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation HOST SITE HOST UNIT SPLICE FIBER DISTRIBUTION PANEL PATCH CORD X PIGTAIL OUTSIDE PLANT CABLE REMOTE SITE STM REMOTE UNIT CABINET INDOOR/OUTDOOR CABLE WITH PIGTAIL LEADS SPLICE ENCLOSURE X 16889-A Figure 3-1. Typical OSP Cable Routing At the RU, the OSP fiber optic cable should be spliced to a connectorized outdoor-rated cable (consisting of individual jacketed pigtails) which is routed into the RU cabinet.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 3 WDM MOUNTING PROCEDURE (OPTIONAL ACCESSORY) A bi-directional wavelength division multiplexer (WDM) is available as an accessory item for non-diversity versions of the Digivance LRCS. If the application does not require the use of a WDM, skip this section and proceed to Section 4. The version of the WDM that is used with the HU consists of one or two WDM modules and a WDM mounting shelf.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 2. Remove both mounting brackets from the mounting shelf (requires Phillips screwdriver) and save screws for reuse. 3. Locate the extra mounting brackets that are provided with the mounting shelf and select the brackets that correspond to the rack type. Each mounting shelf includes extra brackets for installing the mounting shelf in the rack types specified in step 1. 4. Install the replacement mounting brackets as shown in Figure 3-3.