X0400 Series Router Manual
OPERATION
Revision 1.4.4
Page - 19
3.12.1. Temporarily Disabling the GPI Functions
GPI SETUP
Pressing the
SELECT
key when this menu item is shown will override the
programmed functions of all the GPI inputs. The GPI inputs will not respond
when they are disabled.
Disable all Gpis
3.12.2. Re-enabling the GPI Functions
GPI SETUP
Pressing the
SELECT
key when this menu item is shown will restore the
programmed functions of all the GPI inputs. Individual GPIs can be disabled
using the
Program Gpi’s
menu item.
Enable all Gpis
3.12.3. Configuring the Encoding Mode for the GPI Inputs
GPI SETUP
The GPIs can be configured to operate in one of four Encoded modes. In
these modes, many of the GPI inputs are pre-assigned to a function. The
unused inputs are still available for the user to assign to a particular function
using the
Program Gpi’s
menu item.
When the GPI Encoding is set to none, all 8 inputs are available for the user
to assign to particular functions.
Sections 3.12.3.1 to 3.12.3.3 describe how each of the GPI encoding modes
work and which inputs are available for user assignment.
Gpi Encoding
none
standard
hex
AFV hex
std. 2
3.12.3.1. Standard GPI Encoding
Standard GPI encoding is designed to simply select an ‘Audio follow Video’ switch of one of the input
groups to one of the output busses. There are four GPIs to select each input and two GPIs to perform the
switch either in AFV mode or video only. For example, if GPI 3 is low and a falling edge occurs on GPI 7,
the audio and video from input 3 will get switched to the output.
GPI #
Action
Function
1
Low
Select Input 1
2
Low
Select Input 2
3
Low
Select Input 3
4
Low
Select Input 4
5
Set by GPI type menu
Set by Program GPI Menu
6
Set by GPI type menu
Set by Program GPI Menu
7
Falling Edge
Switch selected input to AFV1 Outputs
8
Falling Edge
Switch selected Video input to Output
Table 3-3: Standard GPI Encoding Functions
3.12.3.2. HEX GPI Encoding
HEX GPI encoding is designed to perform an audio follow video or breakaway switch selection. Three
inputs are encoded to select one of the four inputs. Five GPI inputs perform the switch to one of the video
or audio busses or one of the AFV groups.
Summary of Contents for X0400 Series
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