3-Card Shelf Configurations
Single 3-card HVI Cabinet and Backboard with Power Supply Housing
The Teleline Isolator 3-card Shelf HVI Cabinet Assembly, Model 751980/15 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.
3-card Shelf HVI Backboard Assembly
Features
This HVI assembly provides high voltage isolation for six (6) cable pairs entering a site and features the following:
- IEEE 487 compliant
- Teleline Isolator 3-card Shelf, Model 751127, 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 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
- Station-side terminal block equipped with balanced, solid-state secondary protector modules
- 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 shorting are provided for trouble-shooting purposes
- Dedicated incoming cable protected by pre-installed 15kV lightning arrestor
- HVI assembly provided with:
Note: * For integrated Span Power applications, use power supply 751318MC or 751319MC
PRODUCT | DESCRIPTION | DOWNLOAD |
---|---|---|
751980/15 | Single 8-card Shelf HVI Cabinet | User guide |
751980/05 | Single 3-card HVI Backboard with Power Supply Housing | User guide |