> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Telephone Line Isolation Unit

**Type:** Product page · **SKU:** AA0642
**Page:** https://core-electronics.com.au/telephone-line-isolation-unit.html ([markdown](https://core-electronics.com.au/telephone-line-isolation-unit.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## How to buy

- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

By law any radio, amplifier etc connected to a telephone system (for background music or paging applications) must be isolated with a line isolation unit (LIU). Adjustable output level suits all telephone systems. Supplied with 3.5mm mono to RJ11 input lead. Output leads sold separately to suit your application.

![](https://core-electronics.com.au/media/remote_images/A0642_F4qWrJ.gif)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/t/e/telephone_line_isolation_unit__a0642__00.jpg)