---
title: "The Z/IP ONE and Livewire GPIO explained"
slug: "the-zip-one-and-livewire-gpio-explained"
updated: 2024-12-19T07:43:48Z
published: 2024-12-19T07:43:48Z
canonical: "docs.telosalliance.com/the-zip-one-and-livewire-gpio-explained"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.telosalliance.com/llms.txt
> Use this file to discover all available pages before exploring further.

# The Z/IP ONE and Livewire GPIO explained

## Scope

This document covers Livewire GPIO in the [Telos Z/IP ONE Broadcast IP Codec](https://www.telosalliance.com/site-to-site-connectivity/codecs-transceivers/telos-zip-one). Z/IP ONE also has physical GPIO via a parallel port on the back of the unit. Only Livewire GPIO is discussed in this article.

## Description

The Telos Z/IP ONE Broadcast IP Codec (we'll just call it a Z/IP from here on) is a Livewire device. In addition to Livewire audio in and out, it also includes Livewire GPIO for interfacing with the Z/IP's built-in GPIO capabilities.

The Z/IP's GPIO is configured on the GPIO page of the Web UI shown here.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/880105b0-74b7-48d0-b2d3-c48705bcb91c-image.png)

The functions of each of the eight "Bits" are controlled by the pull-down options and are explained in the Z/IP manual.

## Axia GPIO

The Z/IP has two Axia GPIO ports that mirror the configuration set on the configuration page, with one exception. While the Z/IP has only EIGHT bits, each Livewire GPIO port has 5 pins (or 10 total). Only the first FOUR pins on each GPIO port get used. The 5th Pin is not used.

- GPIO Port 1, Pin 1 - Z/IP Bit 1
- GPIO Port 1, Pin 2 - Z/IP Bit 2
- GPIO Port 1, Pin 3 - Z/IP Bit 3
- GPIO Port 1, Pin 4 - Z/IP Bit 4
- GPIO Port 1, Pin 5 - Not used
- GPIO Port 2, Pin 1 - Z/IP Bit 5
- GPIO Port 2, Pin 2 - Z/IP Bit 6
- GPIO Port 2, Pin 3 - Z/IP Bit 7
- GPIO Port 2, Pin 4 - Z/IP Bit 8
- GPIO Port 2, Pin 5 - Not used

> [!WARNING]
> The "Not used" ports can not be assigned to other functions. They are not available to the Z/IP.

For those that understand the Livewire GPIO vernacular a bit better, the GPIO can be restated like this.

```plaintext
***** GPI are "receive from remote" or defined OUTPUT function *****
GPI 1 hhhhh
      1234
      ^^^^^
      ||||\_ Unused
      |||\__ Z/IP Bit 4 
      ||\___ Z/IP Bit 3 
      |\____ Z/IP Bit 2 
      \_____ Z/IP Bit 1 

GPI 2 hhhhh
      5678
      ^^^^^
      ||||\_ Unused
      |||\__ Z/IP Bit 8 
      ||\___ Z/IP Bit 7 
      |\____ Z/IP Bit 6 
      \_____ Z/IP Bit 5 

**** GPO are "send to remote" or defined INPUT function *****
GPO 1 hhhhh
      1234
      ^^^^^
      ||||\_ Unused
      |||\__ Z/IP Bit 4 
      ||\___ Z/IP Bit 3 
      |\____ Z/IP Bit 2 
      \_____ Z/IP Bit 1 

GPO 2 hhhhh
      5678
      ^^^^^
      ||||\_ Unused
      |||\__ Z/IP Bit 8 
      ||\___ Z/IP Bit 7 
      |\____ Z/IP Bit 6 
      \_____ Z/IP Bit 5
```

## Remember

The **Outputs** you configure in the Z/IP, shown here, will arrive as a Livewire GPI.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/5d1d674f-5ea6-4db2-a382-d94f2623da08-image.png)

**Inputs** you configure in the Z/IP, shown here, will arrive as Livewire GPO.

![](https://cdn.document360.io/57e3cd80-d493-453c-9672-ad1b043dadc3/Images/Documentation/75470563-326a-4aae-b345-2f42bfa97805-image.png)

## Let us know how we can help

If you have further questions on this topic or have ideas about improving this document, please [contact us](https://www.telosalliance.com/support-request).