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Telecast DiamondBack 2 Instruction Manual

8-channel video multiplexer.
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DiamondBack 2™
8-Channel Video Multiplexer
Instruction Manual
Telecast Fiber Systems, Inc.
102 Grove Street
Worcester, MA 01605
Tel: 508-754-4858
Fax: 508-752-1520


Table of Contents

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   Summary of Contents for Telecast DiamondBack 2

  • Page 1 DiamondBack 2™ 8-Channel Video Multiplexer Instruction Manual Telecast Fiber Systems, Inc. 102 Grove Street Worcester, MA 01605 Tel: 508-754-4858 Fax: 508-752-1520
  • Page 2 Diamondback2 Trransmitter, rear and front views Diamondback2 Receiver, rear and front views...
  • Page 3: Table Of Contents

    Table of Contents Laser Safety FCC Part A Manual Notice Warning CE Introduction Setup Packing List Attaching the Rack Ears Line Power Configuring Signal I/O Rear Panel Connections Front Panel Indicators and Controls System Examples Fiber Optic Cable Runs Making the Fiber Connection Powering Up Powering Down Optical Transmitter Losses...
  • Page 4 List of Figures Figure 1. Installing the Rack Mount Adapters Figure 2. Diamondback Rear Panels Figure 3. Front Panels, RX (Upper) &TX (Lower) Figure 4. DiamondBack2/Adder 161 Network Figure 5. DiamondBack2/Adder 882i Network List of Tables Table 1. Power XLR pin-out Table 2.
  • Page 5: Laser Safety

    Laser Safety WARNING! Class 1 laser. Do not look into a fiber port or connector. Laser Radiation This TX unit contains a CDRH Class 1 laser device. Although this means it is eye safe, you must avoid looking directly at, or staring into, the laser bean located on an optical connector or on the end of a fiber.
  • Page 6: Introduction

    Introduction The Telecast DiamondBack2™ system consists of a dual optical output fiber optic transmitter/multiplexer (TX) and a mating receiver/demultiplexer (RX). The TX unit multiplexes and launches simultaneously onto the fiber up to eight NTSC/PAL/SECAM video signal channels plus a ninth auxiliary port for compatible data use only.
  • Page 7: Attaching The Rack Ears

    Line Power Any power supply used with the DiamondBack 2 must provide a minimum of 1.5 amperes, continuous, at 12 to 24 VDC. Although the units will operate at 12 VDC, 13.8 VDC is required to charge the internal UPS battery. This battery charges whenever the input voltage is 13.8 VDC or higher.
  • Page 8: Configuring Signal I/o

    SIGNAL Ground No Connection No Connection +12 –to 24 VDC Table 1: Power XLR Pin-out Figure 2: Rear Panel Connections Configuring Signal I/O Rear Panel Connections All setups and connections are on the rear panel, which is basically the same for the TX and RX units;...
  • Page 9 Figure 3: Front Panels, TX (Upper) and RX (Lower) Monitor On both RX & TX. A rotary switch to select one of the eight video channels for output to the adjacent BNC. A standard composite video monitor can be connected here. This is full broadcast quality. Video TX (signal input) and RX (signal output).
  • Page 10: System Examples

    RX Alarm: For power monitoring conditions, the RX alarm functions the same as the TX alarm. For fiber switching situations, the alarm will continue to sound even if the optical signal is restored, indicating to the user the type of malfunction that has occurred. The RX alarm must be manually reset with the SELECT/RESET button.
  • Page 11: Fiber Optic Cable Runs

    Figure 5: Example of the DiamondBack/Adder 161 Fiber Optic Cable Runs The optical output from the TX is generated by an infrared laser diode that is coupled to the fiber. User connections are made at a bulkhead ST type connector on the rear panel;...
  • Page 12: Making The Fiber Connection

    The Receiver takes its signal selectively from Fiber 1. If the signal on Fiber 1 is lost, the RX automatically switches to its Fiber 2 input. If the signal on Fiber 1 is restored, and the signal on Fiber 2 is lost, the RX switches back to Fiber 1. If both fibers remain active, pressing the Select button on the front panel will toggle between them.
  • Page 13: Preventive Maintenance

    Optical Loss Margin Signal Min Unit TX Optical Output - 6* RX Optical Input - 21 Optical Loss Margin (Range) + 15 dB Table 2: Optical Power and margins. * Standard output, high-power versions available Use an optical power meter for testing the optical signal development and its transmission over the fiber.
  • Page 14: Troubleshooting

    Troubleshooting Symptoms Possible Cause Corrective Action No operation, all Power switch is off or Turn on power switches to both units indicators are off. the DC power source Verify that the external power supply is inactive is delivering13.8 and 24 VDC. Internal LED off Battery is depleted Turn on power switches to both units...
  • Page 15: Operating Characteristics

    Operating Characteristics Optical Wavelength: 1300 nm (standard), 1550 nm (optional),1550 nm dFB (optional) or CWDM wavelengths (optional) designated at time of purchase. Fiber: Single mode over a maximum of 30 km. Optical Data Rate: 2.488 Gb/sec Optical Source Laser diode Link margin: 15 db Distance...
  • Page 16: Warranty

    A claim of defect in materials or workmanship in any Product shall be allowed only when it is submitted in writing to Telecast Fiber Systems, Inc. within seven days after discovery of the defect, and in any event within the Warranty Period. No claim shall be allowed in respect of any Product which has been altered, neglected, damaged or stored in any manner which adversely affects it.

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