Single 5-card Shelf HVI Cabinet

The Teleline Isolator 5-card Shelf HVI Cabinet Assembly, Model 751960/15 provides a safe, reliable, cost effective solution for isolating wireline communication circuits entering sites susceptible to high voltage influences due to Ground Potential Rise (GPR) caused by lightning and/or power faults. The NEMA 4X rated, non-metallic, lockable cabinet assembly is suitable for outdoor installation.

The Teleline Isolator offers 70kV peak, 50kVrms protection on each communication circuit, while permitting continuous communications before, during, and after a GPR event.

HVI backboard assembly

Features

This HVI backboard assembly provides high voltage isolation for ten (10) cable pairs entering a site and features the following:

• IEEE 487 compliant
• Teleline Isolator 3-card Shelf, Model 751112/15, certified to Safety Standard 60950, equipped to provide integrated Span Power for ADTRAN Total Reach®, HDSL and T1 terminating units
• NEMA 4X rated non-metallic cabinet is equipped with:
  • Internal fan, with particle filter, for cooling and maintaining a positive interior pressure to minimize dust infiltration
  • Humidity sensor, thermostat and heat strip to maintain a controlled internal environment
  • AC utility power outlets
• Entire assembly comes pre-wired to ensure dielectric separation of station and remote ground potential components, ensuring a safe and IEEE compliant installation
• Equipment mounted on a ¾ inch (2 cm) thick plywood backboard with fire-proof paint:
  • Plywood backboard coated with fire-proof paint
  • Remote Ground Potential region designated in bright red
  • Station Ground Potential region designated in white
• Connections to dedicated incoming communication cable (Remote Ground Potential) made via wire-wrap to ADC® high voltage isolation modules with looping jacks providing 20kV of isolation
  • Additional isolation jacks for circuit polarity reversal and circuit looping are provided for trouble-shooting
• Station-side terminal block equipped with balanced, solid-state secondary protector modules
• Dedicated incoming cable protected by pre-installed 15kV lightning arrestor
• HVI assembly provided with:
  • One (1) power supply provided, choose from Models: 751318MC*, 751319MC*, 751313MC or 751316
  • One (1) Teleline Test card, Model 751366

Note: * For integrated Span Power applications, use power supply 751318MC or 751319MC