Relay Interface; Usb Control Interface - Lightware MMX8x8-HDMI-4K-A User Manual

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3. Product Overview
3.8.5. 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 can be controlled by Lightware
protocol commands (LW3) and Event manager actions can be
assigned to 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
MIC
HDMI
MAIN MENU
MMX8x4-HT400MC
LIVE > System Settings
POWER Input Ports Output Ports
USB Control
Multiport HDMI and TPS Matrix Switcher
PC MMX8x4-HT420M
The Concept
Projection screen is rolled down by relay when the audio signal is
present on the microphone input of the Matrix. When HDMI signal is
not present on the input, the projection screen is rolled up.
Settings of the Matrix
Step 1. 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):
/MEDIA/AUDIO/I9.IndicatorNominal=true
Action (on Wizard tab):
Category: Relay, Expression: Close contact on relay, Port: P1
Step 2. 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.
3.8.6. USB Control Interface
Projection screen
Relay 1.
Relay 2.
HDMI
TPS
TPS receiver
Projector
MMX8x4-HT series – User's Manual
When the presentation is finished, signal ceases on the HDMI input, so
the Relay 2. (P2) closes and projection screen returns to its enclosure.
See the LDC settings for Relay port in the Relay Tab
the details about the Event Manager settings in the
section.
The device can be controlled over front panel USB port (mini B-type
connector). This interface supports LW3 protocol. The interface can
be used to establish a connection to Lightware Device Controller
software.
INFO: USB control operates locally, USB data is not transmitted.
section. See also
Event Manager
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