5. Device Concept MMX8x4-HT series – User's Manual 52
Relay Interface
INFO: Only the MMX8x4-HT420M model has relay connector.
The matrix contains four relay modules which can be accessed by an 8-pole Phoenix connector. The relays
the port.
ATTENTION! The device built with normally open (N.O.) contact relays which means when the unit is not
powered (DC plug is disconnected), the relays will open.
Application of Relays - Example
The Concept
Projection screen is rolled down by relay when the audio signal is present on the microphone input of the
Settings
Create an event in Event manager: when signal is present on the microphone input (I9) then set Relay 1. (P1)
to be closed.
Condition (on Advanced tab):
Action (on Wizard tab):
Category: Relay, Expression: Close contact on relay, Port: P1
Step 3. Create another event when signal is not present on Input 5 (I5)then set the Relay 2. (P2) to be closed.
The lecturer can roll down the projection screen by talking to the microphone. It means, the audio signal is
present on the microphone input (signal peak indicator becomes true), the Relay 1. (P1) closes.
screen returns to its enclosure.
Relay Tab section. See also the details about the Event Manager
settings in the Macros section.
USB Interface
USB Control
USB 2.0 Interface
DIFFERENCE: MMX8x8-HDMI-4K-A-USB20 matrix can transmit the USB 2.0 data via USB type-A and USB
type-B connectors. In the other models, USB control operates locally, USB data is not transmitted.
INFO:
Host detection
One host is available from the four in the same time. MMX8x8-HDMI-4K-A-USB20 gives a feedback about
Host5VSensePC property becomes true (this
can be a trigger or condition in the Event Manager).
Enable the Power Switch Delay
After switching between the hosts, some connected USB devices need reset to operate properly. Enable
power switch delay function allows users to reset the connected USB device within the software without the
them to restart.
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