X0400 Series Router Manual
Page 20
Revision 1.4.4
OPERATION
GPI #
Action
Function
1
High or low Level
Three HEX encoded inputs select one
of the 4 input busses – see Table 3-5
2
3
4
Falling Edge
Switch selected input to 1A Output
5
Falling Edge
Switch selected input to 1B Output
6
Falling Edge
Switch selected input to 2A Output
7
Falling Edge
Switch selected input to V1 Output
8
Falling Edge
Switch selected input to 2B Output
Table 3-4: HEX GPI Encoding Functions
GPI 3
GPI 2
GPI 1
Input Select
High
High
High
Invalid selection
High
High
Low
1
High
Low
High
2
High
Low
Low
3
Low
High
High
4
Low
High
Low
Invalid selection
Low
Low
High
Invalid selection
Low
Low
Low
Invalid selection
Table 3-5: HEX Input Selection (HEX and AFV HEX Encoding)
3.12.3.3. AFV HEX GPI Encoding
AFV HEX GPI encoding is designed to permit audio follow video switch selection. Three inputs are
encoded to select one of the twelve inputs for the AFV group. One GPI input performs the switch to one of
the AFV groups. There are four GPI inputs available for user-defined functions.
GPI #
Action
Function
1
High or low Level
Three HEX encoded inputs select one
of the four input busses – see Table 3-5
2
3
4
Set by GPI type menu
Set by Program GPI Menu
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 input selected by GPI1-3 to
AFV1 Outputs
8
Set by GPI type menu
Set by Program GPI Menu
Table 3-6: AFV HEX GPI Encoding Functions
3.12.3.4. Standard 2 GPI Encoding
Standard 2 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. The actions of the GPIs are reversed in comparison to the
Standard GPI Encoding.
Summary of Contents for X0400 Series
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