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ADC DIGIVANCE User Manual

Indoor coverage solution 800 mhz remote interface unit
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Download this manual See also: User Manual, Operation & Installation Manual
FCC ID: F8I-DVICSRIU800
ADCP-75-114
Issue C June 2001
Digivance
Indoor Coverage Solution
800 Mhz Remote Interface Unit User Manual
DRAFT
1145993

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Summary of Contents for ADC DIGIVANCE

  • Page 1 FCC ID: F8I-DVICSRIU800 ADCP-75-114 Issue C June 2001 Digivance Indoor Coverage Solution 800 Mhz Remote Interface Unit User Manual DRAFT 1145993...
  • Page 2 Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.

  • Page 3: Table Of Contents

    Turn-Up Unit and Verify Operation............17 Forward Path Level Adjustment .............18 Reverse Path Level Adjustment .............21 MAINTENANCE ..............22 Tools and Materials .............22 Fault Detection and Alarm Reporting ..........22 Fan Replacement...............23 CUSTOMER INFORMATION AND ASSISTANCE..........25 Page iii  2001, ADC Telecommunications, Inc.
  • Page 4 Digital Host Unit (DHU), Digital Remote Unit (DRU) and the Digital Expansion Unit (DEU) are provided in the Digivance ICS Installation and Operation Manual (ADCP-75-110). The RIU is an interface device that is used in conjunction with the Digivance ICS product.
  • Page 5 Direct Current Digital Expansion Unit Digital Host Unit Digital Remote Unit Electronic Industries Association Electrostatic Discharge Federal Communications Commission Industry Canada Indoor Coverage Solution Local Interface Unit Network Operations Center Remote Interface Unit Page v  2001, ADC Telecommunications, Inc.
  • Page 6 ADCP-75-114 • Issue C • June 2001 • Preface Radio Frequency Underwriters Laboratories Volts Volts Alternating Current Volts Direct Current WECO Western Electric Company Page vi  2001, ADC Telecommunications, Inc.

  • Page 7: Description

    1.1 Primary Functions and Components The RIU, shown in Figure 1, serves as the interfacing unit between a remote BTS and the Digivance DHU. The RIU provides the following basic functions: • RF interface to the BTS (through donor antenna) and DHU •...

  • Page 8: Mounting

    RIU to a flat vertical surface. The RIU should be oriented with the front panel facing upward when wall-mounted. The fasteners must be provided by the installer in wall-mount applications. Page 2 © 2001, ADC Telecommunications, Inc.

  • Page 9: Fault Detection And Alarm Reporting

    A minimum of 3 inches (76 mm) of clearance space must be provided on both the left and right sides of the RIU for air intake and exhaust. An alarm is provided that indicates if a high temperature condition (>58º C/136º F) occurs. The fan may be field-replaced if it fails. Page 3 © 2001, ADC Telecommunications, Inc.

  • Page 10: User Interface

    Section 3 for a detailed description) MINOR MAJOR Screw-type terminal Used for connecting the RIU to an external connector (14–26 alarm system. Includes normally open (NO), AWG) normally closed (NC), and common (COM) wiring connections. Page 4 © 2001, ADC Telecommunications, Inc.

  • Page 11: Specifications

    Output power –20 dBm composite maximum to With proper attenuation setting Digivance ICS input Input level –29 dBm composite maximum To drive Digivance ICS DHU VSWR 1.5:1 or better, both ports > +30 dBm RF Reverse Path A-band frequency range 824 to 835 and 845 to 846.5 MHz...
  • Page 12 Electrical Power source 120–240 VAC, 50–60 Hz AC Connection IEC 320 Male Power consumption 250 W Maximum Current rating 85–250 VAC, 2 Amp input Donor Antenna Type Directional Gain 15 dB or greater Page 6 © 2001, ADC Telecommunications, Inc.

  • Page 13: Installation

    1. Open the shipping carton and carefully unpack the RIU from the protective packing material. 2. Check the RIU for broken or missing parts. If there are any damages, contact ADC (see section 5 at the end of this manual) for an RMA (Return Material Authorization) and to reorder if replacement is required.

  • Page 14: Mounting Procedure

    Figure 4. Use the screws removed in step 2 to re-attach the brackets to the RIU enclosure. REMOVE AND REINSTALL MOUNTING BRACKETS AS SHOWN FOR 16487-B INSTALLATION IN 23-INCH RACKS Figure 4. Installing the Mounting Brackets for 23-Inch Rack Installations Page 8 © 2001, ADC Telecommunications, Inc.
  • Page 15 2. If the mounting brackets will be used to secure the RIU to the mounting surface, proceed to step 3. If the mounting brackets will not be used to secure the RIU to the mounting surface, skip steps 3 and 4 and proceed to step 5. Page 9 © 2001, ADC Telecommunications, Inc.
  • Page 16 1/4 inch (6 mm) from the mounting surface. 10. Hang the RIU from the fasteners installed in step 9 or position the RIU for installation if using only the mounting brackets. 11. Install and securely tighten all fasteners. Page 10 © 2001, ADC Telecommunications, Inc.

  • Page 17: Chassis Ground Connection

    4. Attach the ring end of the wire to the chassis ground stud (see Figure 8). 5. Route the free end of the chassis grounding wire to an approved (per local code or practice) earth ground source. Page 11 © 2001, ADC Telecommunications, Inc.

  • Page 18: Coaxial Cable Connections

    Note: The procedures for routing the reverse and forward path coaxial cables from the DHU to the RIU and for connecting the cables to the DHU are covered in the Digivance ICS Installation and Operation Manual (ADCP-75-110) which is provided with the DHU.
  • Page 19 4. Connect the RIU end of the antenna cable to the ANTENNA connector on the RIU front panel as shown in Figure 10. 5. Connect the antenna end of the antenna cable to the donor antenna. 6. Dress and secure cables at the RIU and donor antenna. Page 13 © 2001, ADC Telecommunications, Inc.

  • Page 20: External Alarm System Connections

    4. Connect the Major alarm wire pair to the MAJOR COM/NC or MAJOR COM/NO terminals (whichever is required by the external alarm system) on the RIU alarm terminal connector (supplied with RIU) as shown in Figure 11. Page 14 © 2001, ADC Telecommunications, Inc.

  • Page 21: Ac Power Connection

    RIU. Use the following procedure to install the AC power cord: 1. Place the RIU AC power ON/OFF switch, shown in Figure 12, in the OFF position (press O). Page 15 © 2001, ADC Telecommunications, Inc.
  • Page 22 5. Dress and secure cable. 6. When the RIU installation is complete, refer to Section 3 of this manual for the unit turn- up and test procedures. Page 16 © 2001, ADC Telecommunications, Inc.

  • Page 23: Operation

    7. Check the forward path RF signal level at the DHU RF IN port and verify that the DHU input signal level is –20 dBm. Re-adjust FWD LEVEL ADJ rotary switches to add or remove gain if required. Page 17 © 2001, ADC Telecommunications, Inc.

  • Page 24: Forward Path Level Adjustment

    4. Calculate the total composite signal output power from the antenna using the following formula: +10 LogN Where, is the total composite power in dBm is the power per carrier in dBm as measured in step 2, and N is the total number of channels. Page 18 © 2001, ADC Telecommunications, Inc.
  • Page 25 9. Disconnect the spectrum analyzer or power meter from the antenna. FWD LEVEL ADJ REV LEVEL ADJ 16649-A INSERT A SMALL SCREWDRIVER INTO THE SLOT. ROTATE THE SWITCH UNTIL THE WHITE ARROW IS ALIGNED WITH THE REQUIRED SETTING. Figure 14. Rotary Switch Adjustment Page 19 © 2001, ADC Telecommunications, Inc.
  • Page 26 ADCP-75-114 • Issue C • June 2001 Table 4. RIU Rotary Switch Adjustment Settings REVERSE GAIN SETTINGS FORWARD GAIN SETTINGS GAIN GAIN (+dB) SETTING SETTING (+dB) SETTING SETTING Page 20 © 2001, ADC Telecommunications, Inc.

  • Page 27: Reverse Path Level Adjustment

    DRU path loss per the system design. The design objective is for the Digivance system to provide unity gain. Use the following procedure to adjust the RIU to provide the required reverse path signal level at the antenna: 1.

  • Page 28: Maintenance

    1. Air intake or exhaust openings to RIU 1. Remove cause of air-flow blockage. chassis blocked. 2. Ambient temperature > 58º C/136º F. 2. Reduce ambient temperature. 3. Faulty fan. 3. Replace fan (see Subsection 4.3). Continued Page 22 © 2001, ADC Telecommunications, Inc.

  • Page 29: Fan Replacement

    9. Use the rivets removed in step 7 to secure the replacement fan to the grill. Orient the fan so the wiring harness is on the right side (side of fan that faces toward back of enclosure when installed) and the arrow on the fan housing faces into the enclosure. Page 23 © 2001, ADC Telecommunications, Inc.
  • Page 30 13. Reconnect the AC power cord and place the RIU AC power On/Off switch in the ON position (press I). 14. Verify that the fan runs properly following power up. 15. Notify the NOC or alarm monitoring system operator that the system is going back online. Page 24 © 2001, ADC Telecommunications, Inc.

  • Page 31: Customer Information And Assistance

    ADC Telecommunications, Inc., P.O. Box 1101, Minneapolis, MN 55440-1101, U.S.A. Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.

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