Link Electronics PCO-818SD Digital Change-Over Chassis with SDI Black and Digital Audio Reference Cards

SKU: LEPCO818SD MFR: PCO-818/SD
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Key Features

  • Ensure seamless transitions with this digital change-over chassis for critical broadcasts.
  • Maintain signal integrity using the PCO-818SD's auto switch for SDI and digital audio feeds.
  • Rely on the automatic or manual operation modes for versatile signal processing control.
  • Easily integrate this 19-inch chassis into any standard studio or broadcast environment.
  • Detect and switch between generators effortlessly with signal enable/disable switches.
  • Enjoy long-term reliability with Link Electronics' 10-year limited warranty included.
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Special Order?Estimated to Ship: 08/23/2025
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Link Electronics PCO-818SD Specifications

  • Pulse Level

    HD, VD, SY, BL, or BF at 4Vpp (OP/PL)

  • Subcarrier Level

    2Vpp (OP/SC)

  • Blackburst Level

    0.3Vpp Sync (OP/BB)

  • Color Field ID Level

    4Vpp (OP/CFI)

  • Composite Reference Signal

    1Vpp (CRS, OP/PL)

  • Input Impedance

    >1kOhms on the generator in service
    75Ohms on the generator in stand-by

  • Amplitude Switch Points

    Between -6dB and -12dB of nominal

  • Crosstalk Between Generators

    >60dB at 3.58MHz

  • Reaction Time

    <1s

  • Controls: Mode Switch

    Selects Automatic or Manual operation

  • Controls: Select Switches

    Selects Generator A or Generator B

  • Controls: Signal Enable Switches

    Enables/Disables detection of input signal(s)

  • Power: Mains

    85 to 260VAC, Automatic sensing

  • Power consumption/module

    1W

  • Ambient Temperature

    0 to 50 deg. C / 32 to 122 deg. F

  • Humidity

    10 to 90%, Non-condensing

  • Dimensions

    Module (W x D): 4.25 x 10" / 107.95 x 254mm
    Chassis (W x D x H): 19 x 11 x 1.75" / 482.6 x 279.4 x 44.45mm

About Link Electronics PCO-818SD

The PCO-818/SD is the change-over for SDI digital system. The modules included in this configuration are:

• 818-OP/SDI - SDI Digital Black burst
• 818-OP/AES - AES Digital Audio

As your system grows and new technology arrives, the PCO-818 stands ready to grow with you. The PCO-818 is engineered to provide complete sync system reliability in a compact, easy to use and economical package. It's advanced modular design provides a level of flexibility never before available in an Automatic Changeover unit. When combined with it's sync generator companion, the SPG-812, the PCO-818 can offer the best performance and reliability available today.

The basic function of the PCO-818 is to monitor an installation's primary sync generator and automatically switch to a backup generator in the event of a failure to the primary. It's modular design offers several advantages over traditional automatic changeover units. Monitor only the signals used by the system: no need to pay for monitoring capability that is not required by the system. Install only the modules you need now-add more later.

Each module is matched to it's signal: this allows them to accurately monitor pulses of various amplitudes and widths. It also allows them to mix analog and digital signal monitoring in the same chassis! Since the PCO-818 and the SPG-812 Sync Generator share a common chassis, modules may be interchanged between units. For example, an television station may use a single SPG-812 generator with a backup blackburst generator installed in the changeover chassis!

In addition, the PCO-818 is designed such that AC mains failure will not erase the memory of it's last generator selection. Dual-coil latching relays provide a reliable signal path even if power is lost to the PCO-818. Meanwhile, its power supply features a "universal" voltage input range of 85VAC to 260VAC. In extreme conditions, the PCO-818 would be the last unit to shut down in the event of an AC mains failure. Bi-color LEDs provide instant status indication for each signal in your system. If a particular signal is not in use, the LED can be easily de-selected (dark) rather than produce a false failure (red) indication. A "Manual/Automatic" switch allows the user to override the automatic changeover function and select either generator in the system.

Warranty Information

This product has a limited warranty of 120 months.

Key Features

  • Ensure seamless transitions with this digital change-over chassis for critical broadcasts.
  • Maintain signal integrity using the PCO-818SD's auto switch for SDI and digital audio feeds.
  • Rely on the automatic or manual operation modes for versatile signal processing control.
  • Easily integrate this 19-inch chassis into any standard studio or broadcast environment.
  • Detect and switch between generators effortlessly with signal enable/disable switches.
  • Enjoy long-term reliability with Link Electronics' 10-year limited warranty included.

What's in the box:

  • Link ELectronics PCO-818 Analog Change-Over Chassis
  • 818-OP/SDI Auto Switch for SDI
  • 818-OP/AES Auto Switch for Digital Audio
  • Link Electronics 10 Year Limited Warranty