FCC ID: F8I-DVLRCSPCS - User Manual - Part 3 ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation WDM MOUNTING SHELF WDM MODULE 16888-A Figure 3-4. WDM Mounting Shelf and WDM Module Installation 4 HU MOUNTING PROCEDURE The HU may be mounted in either a 19-inch or 23-inch EIA or WECO equipment rack. Both US standard and metric machine screws are included for rack mounting the HU.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 3. Reinstall both mounting brackets so the long side of the bracket is flush with the HU front panel as shown in Figure 3-5. Use the screws removed in step 2 to re-attach the brackets to the HU chassis. REMOVE AND REINSTALL MOUNTING BRACKETS AS SHOWN FOR INSTALLATION IN 23-INCH RACKS 16882-A Figure 3-5. Installing the Mounting Brackets for 23-Inch Rack Installations 4.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 5 CHASSIS GROUND CONNECTION A stud is provided on the rear side of the chassis for connecting a grounding wire to the chassis. Use the following procedure to connect the grounding wire to the chassis and to route the grounding wire to an approved earth ground source. 1. Obtain a length of #18 AWG (1.00 mm) insulated stranded copper wire for use as a chassis grounding wire. 2. Terminate one end of the wire with a ring terminal. 3.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation In many installations, it is usually necessary to install an external attenuator in the forward path link between the HU and the BTS. The procedure for determining the value of the external attenuator is provided in SECTION 4: OPERATION. The HU should be mounted as close as possible to the BTS to minimize cable losses. Use the following procedure to route the forward and reverse path coaxial cables and connect them to the HU: 1.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 7 OPTICAL CONNECTIONS The optical interface between the HU and the RU is supported by either two (non-diversity) or three (diversity) optical ports. Each optical port consists of an SC optical adapter which is mounted on the HU front panel. Port 1 provides the optical fiber connection for the forward path (downlink) signal. Port 2 provides the optical fiber connection for the reverse path (uplink) signal.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 16893-A Figure 3-9. Fiber Optic Cable Connections To Host Unit 6. Identify the OSP cable optical fiber terminations that correspond to the RU. 7. Designate one of the OSP fibers as the forward path link and the other as the reverse path link and attach an identification label or tag next to the connector. For diversity systems, designate and label or tag a third fiber as the diversity reverse path link. 8.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation Note: Each WDM module can support two separate HU’s. The WDM module ports are numbered from 1 through 6 as shown in Figure 3-10. Ports 1 through 3 are used for HU #1 and Ports 4 through 6 are used for HU #2.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 8 CONTROLLER AREA NETWORK CONNECTIONS Controller area Network (CAN) interface connections between multiple HU’s are supported by a pair of RJ-45 jacks. One of the jacks is designated as the NET IN port and the other jack is designated as the NET OUT port. The CAN interface allows up to 24 HU’s to be connected together (in daisy-chain fashion) and controlled through a single Digivance EMS computer.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation HOST UNIT 1 HOST UNIT 2 NET IN NET OUT NET IN NET OUT HOST UNIT 3 NET IN NET OUT TO NEXT HOST UNIT CONTROLLER AREA NETWORK INTERFACE CABLES 16900-A Figure 3-12. Configuring CAN Connections with Multiple Host Units 9 SERVICE INTERFACE CONNECTION The service interface connection between the HU and the Digivance EMS computer is supported by a single DB-9 female connector. The service connector provides an RS-232 DTE interface.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 10 EXTERNAL ALARM SYSTEM CONNECTIONS The alarm interface between the HU and an external alarm system is supported by a six-terminal plug (with screw-type terminals) that connects to a receptacle mounted on the HU front panel. The terminal plug provides connections to normally open (NO) and normally closed (NC) dry type alarm contacts for both major and minor alarms.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 6. Connect the Major and Minor alarm wire pairs to the appropriate terminals on the external alarm system. 7. Dress and secure cable per standard industry practice. 11 DC POWER CONNECTIONS The HU is powered by ± 24 or ± 48 Vdc power. The power is fed to the HU through a screwdown type terminal strip located on the rear side of the unit.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation 6. Connect the power wires to the appropriate terminals as specified in the fuse panel user manual. 7. Dress and secure the power wiring at the fuse panel and the HU. The procedure for checking the voltage level and verifying that the HU is ready to power up is provided in SECTION 4: OPERATION. Page 3-17 © 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 3: Host Unit Installation Blank Page 3-18 © 2002, ADC Telecommunications, Inc.
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation SECTION 4: OPERATION Content 1 2 Page BEFORE STARTING OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.1 Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1 1.2 Readiness Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADCP-75-126 • Issue B • April 2002 • Section 4: Operation 1.2 Readiness Check Before starting the turn-up process, inspect the complete LRCS system to verify that all components of the system are ready to be powered-up. This will ensure that no units of the system will be damaged during turn-up and that all existing systems will continue to function properly. 1.2.1 Host Unit Installation Checks Complete the following checks at the HU prior to starting the turn-up process: 1.
