Nitek VB39F Video Balun Transceivers with Surge Suppression for Twisted Pair. Video balun transceivers for twisted pair up to 1,000 feet. VB39 has a built-in surge suppression for added equipment protection.

Features:

• Quality video over ordinary twisted pair cable
• Immunity to noise and interference
• Built-in surge suppression
• Passive devices - do not require power
• Video & P/T/Z over a single pair (with "up-the-coax"?
  systems)
• M - version mounts directly to camera or video source
• Weatherproof design
• Easier to install than coax
• NOTE: VB39F- Female BNC-Connector; VB39M- Male BNC-Connector