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Main / Changeovers (video, audio, SDI) / PRB-103

PRB-103 series 3-channel relay bypass module is intended for commuting the PAL/SECAM, HD/SD SDI, unbalanced AES/EBU audio signals providing an emergency bypass facility.
PRB-103 is controllable from its frontal panel and by external GPI commands.
The relay used for switching allows for automatic bypass mode during the power down condition.
PRB-103 may be used as the 3-channel 2x1 relay switch, in this case its OUT1 port is used as the main output, the INA and INB ports - as the two inputs. The GPO output reflects the "NORM/BYPASS" status.

Up to three PRB-103 units fit into the PM-021 1U rack mounting plate.

The «NORM» and «BYPASS» backlit buttons are located at the frontal panel.

PRB-103 frontal panel view

PRB-103 rear panel view

The clamp-on «GPI» input connectors accept the “NORM” and “BYPASS” commands.

The clamp-on «GPO» output connector delivers the “NORM” and “BYPASS” statuses.

Technical specifications

• Inputs
  • Video
    • SMPTE292M compliant HD SDI, SMPTE259M A,B,C,D compliant SD SDI, DVB/ASI
    • Rec.ITU-R BT.470.6 compiant PAL/SECAM
    • BNC connectors
    • 3ms switching time
  • Audio
    • AES/EBU
    • BNC connectors
    • 3ms switching time
• Outputs
  • output parameters are as per input - dry-reed relay guarantees the signal transparency
• Power
  • +7~9VDC supply
  • less than 1.3W power consumpltion
• Dimentions and weight
  • 146*42*132mm width*height*depth
  • less than 0.8kg