
Operation, cont’d
MTPX Plus Twisted Pair Matrix Switchers • Operation
3-24
The I/O groups can be set up on the front panel or by using RS-232/RS-422 and
LAN ports and either the SIS or the Windows control program (see chapter 4,
“Programmer’s Guide”, and chapter 5, “Matrix Software”). Create I/O groups on
the front panel as follows:
N
I/Ogroupsareprotectedwhenfrontpanellockmode2isselected.Youcanview
thegroupsinlockmode2,butyoucannotchangethemfromthefrontpanel.See
“SettingthefrontpanelLocks(Executivemodes)”onpage3-46.
1. Press the Esc button to clear any input buttons, output buttons, or control
buttons that may be lit.
2. To enter I/OGroup mode, press and hold the Input 1 and Output 1 buttons
until the input and output buttons light to display the ungrouped inputs and
outputs.
3. Press and release one of the Control buttons to select a group:
• PresstheEnterbuttontoselectgroup1.
C O N T R O L
PRESET
ENTER
ESCVIEW
1324Group #
• PressthePresetbuttontoselectgroup2.
• PresstheViewbuttontoselectgroup3.
• PresstheEscbuttontoselectgroup4.
4. Select the desired input(s) and output(s) to assign to the group by pressing the
input and output buttons.
5. Press and release the Video and Audio button to exit the I/OGroupmode, or
allow the mode to time out after approximately 30 seconds.
N • Tiesbetweengroups(aninputingroup1tiedtoanoutputingroup2)can
becreatedunderRS-232/RS-422orEthernetcontrol.
• TiesthatwerecreatedbeforeI/Ogroupswerecreatedremainvalid,evenif
they include inputs and outputs in different groups.
• PresetscanbecreatedunderRS-232/RS-422orEthernetcontrolthattie
inputs and outputs across group boundaries. These presets are selectable
from the front panel.
• Aninputoroutputcanbeassignedtoonlyonegroup.Ifyouassignan
input or output to a group and that input or output is already assigned to a
different group, the older grouping is discarded in favor of the new grouping.
• Youcan break audio away from the video for a given input or output
(assigned to different groups) by isolating only video or only audio using the
front panel Video and/or Audio buttons after you select I/O Group mode
(between steps 2 and 3).
Audio breakaway across different groups can be confusing when you are
operatingthefrontpanel.Breakawaygroupingis not displayed by the
MatrixSwitchersControlProgram,HTMLpages,orSIScommands;andis
not recommended (breakaway ties, once created, are displayed).
• ForI/Ogroupstohaveanyfunction,atleasttwogroupsmustbecreated.