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ADC RF Worx User Manual

Redundant switch (rds)
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RF Worx
Redundant Switch (RDS)

User Manual

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9134-B
ADCP-61-810
Issue 4
September 2004
1303196 Rev A

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Summary of Contents for ADC RF Worx

  • Page 1: User Manual

    ADCP-61-810 Issue 4 September 2004 ® RF Worx Redundant Switch (RDS) User Manual IT C T H R H IN E S H O L D PA TE N T PE N D IN (- R ) S E L...

  • Page 2: Revision History

    DISCLAIMER OF LIABILITY 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

    CUSTOMER INFORMATION AND ASSISTANCE ........... 18 Page iii © 2004, ADC Telecommunications, Inc.
  • Page 4 ADCP-61-810 • Issue 4 • September 2004 • Preface Page iv © 2004, ADC Telecommunications, Inc.

  • Page 5: About This Manual

    ADCP-61-810 • Issue 4 • September 2004 • Preface ABOUT THIS MANUAL This user manual describes the ADC RF Worx Redundant Switch and associated SWatch switch monitoring software. This user manual provides installation, operation, and maintenance instructions. ADMONISHMENTS Important safety admonishments are used throughout this manual to warn of possible hazards to persons or equipment.
  • Page 6 ADCP-61-810 • Issue 4 • September 2004 • Preface Page vi © 2004, ADC Telecommunications, Inc.

  • Page 7: General

    ADCP-61-810 • Issue 4 • September 2004 1 GENERAL The ADC RF Worx Redundant Switch, shown in Figure 1, is designed for use in 19-inch or 23- inch equipment racks. All RF signal connections to the switch are made through standard 75- ohm BNC connectors (RDS-B) or F connectors (RDS-F) on the rear panel.

  • Page 8: Dual Alarm Monitor Mode

    “SWatch” Switch Monitoring System — The SWatch GUI software for the RDS can be purchased separately from ADC Telecommunications. The program provides continuous remote monitoring of the RDS and associated systems. It is designed for Windows 95/98/NT systems with a 90 MHz (or faster) Pentium Processor.

  • Page 9: Dual A/B Switch Mode

    The RDS can also function as an electronic A/B switch as shown in Figure 3. This mode is used to provide redundancy to amplifiers or receivers used anywhere in the forward path of the cable television network. Page 3 © 2004, ADC Telecommunications, Inc.

  • Page 10: Dual Alarm Monitor Mode

    COMPUTER MONITOR & ALARM SYSTEM AMP 1 AMP 2 RDS-1 AMP 1 AMP 2 OUTPUT OUTPUT MICROPROCESSOR PORT 1 PORT 2 CONTROL 10140-A Figure 4. Block Diagram for Dual Alarm Monitor Operation Page 4 © 2004, ADC Telecommunications, Inc.

  • Page 11: Physical Description

    (43.69 CM) 12215-C Figure 5. Top View With Dimensions 1.75 IN. (4.45 CM) 1.25 IN. (3.18 CM) PATENT PENDING 18.31 IN. (46.51 CM) 10152-C 18.98 IN. (48.21 CM) Figure 6. Front View With Dimensions Page 5 © 2004, ADC Telecommunications, Inc.
  • Page 12 PORT 2 1A MAX ALARM IN OUT A OUT B NO C – + – + – + SEE USER MANUAL FOR OPERATING VOLTAGE 12376-A Figure 8. RDS Rear Panel With Identified Parts Page 6 © 2004, ADC Telecommunications, Inc.

  • Page 13: Technical Description

    24 to 36 Port 2, 79 channels 16 to 35 Port 1, 117 channels 22 to 34 Port 2, 117 channels 15 to 34 Port 1, 135 channels 21 to 33 Port 2, 135 channels Page 7 © 2004, ADC Telecommunications, Inc.

  • Page 14: Installation

    #12- 24 screws. (See Figure 2. Using AWG 18 (or larger) stranded wire, connect frame ground to the frame ground screw in the lower left corner of the rear panel (see Figure 10). Page 8 © 2004, ADC Telecommunications, Inc.
  • Page 15 1 0 0 A X ) U T L 1 0 0 /1 2 0 /2 4 0 V A C S /N  12217-C SERIAL NUMBER Figure 10. Rear View of Redundant Switch Page 9 © 2004, ADC Telecommunications, Inc.

  • Page 16: Redundant Amplifier Mode

    Note: If the input power is out of range, the (yellow) LOSS OF INPUT LED will be lit. The input power must be adjusted within range prior to continuing the RDS set-up. Page 10 © 2004, ADC Telecommunications, Inc.

  • Page 17: A/B Switch And Dual Alarm Monitor Modes

    Warning: The RDS is factory set for –48 VDC or 120 VAC operation. For 240 VAC operation, refer to subsection 3.2, 220 to 240 VAC Operation, below. Page 11 © 2004, ADC Telecommunications, Inc.

  • Page 18: 220 To 240 Vac Operation

    8. The front panel (green) NORMAL and (red) DUAL FAILURE LEDs (shown in Figure 15) will be lit indicating that the internal power supply is operational. Proceed to Section 4 to set up and operate the switch. Page 12 © 2004, ADC Telecommunications, Inc.

  • Page 19: Setup And Operation

    Figure 15. RDS Front Panel 4 SETUP AND OPERATION This section explains how to set up and operate the RF Worx Redundant Switch (RDS) in redundant amplifier mode, A/B switch mode, or dual alarm monitor mode. Included here are the differences in setup and configuration, operation, and trouble-shooting.

  • Page 20: Calibration-Redundant Amp Mode

    Figure SWITCHING THRESHOLD PORT 1 PORT 2 A/B SWITCH PATENT PENDING (–dB) 10138-A Figure 16. A/B Switch Mode Label Page 14 © 2004, ADC Telecommunications, Inc.

  • Page 21: Entering A/B Switch Mode

    Port 2 by pressing the threshold switch “down.” Output Calibration A/B Switch Mode — Note: The calibration process will monitor the amplifier or receiver output level and set the switch to expect that particular signal level. Page 15 © 2004, ADC Telecommunications, Inc.

  • Page 22: Single A/B Switch Mode Operation

    “INACTIVE” by entering this description in the Amp Description field. Once the redundant switch and associated receivers or amplifiers are powered-up, operate the switch as follows (see Figure 18) : Page 16 © 2004, ADC Telecommunications, Inc.

  • Page 23: System Reset Procedure

    The outside of the redundant amplifier switch should be cleaned during routine headend equipment maintenance. Fuse Replacement Caution: For continued safe operation and to reduce the risk of fire, replace fuses with the same type and rating. Page 17 © 2004, ADC Telecommunications, Inc.

  • Page 24: Customer Information And Assistance

    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 26 www.adc.com...

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