The Z/IP ONE and Livewire GPIO explained
Updated
by
Bryan Jones
Scope
This document covers Livewire GPIO in the Telos Z/IP ONE Broadcast IP Codec. 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.
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
For those that understand the Livewire GPIO vernacular a bit better, the GPIO can be restated like this.
***** 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.
Inputs you configure in the Z/IP, shown here, will arrive as Livewire GPO.
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