Electrical Connections; Hdmi Input And Output Ports; Analog Stereo Audio; Microphone In - Lightware MMX8x4-HT Series User Manual

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3. Product Overview
3.3. Electrical Connections
3.3.1. HDMI Input and Output Ports
The matrix switchers are assembled with standard
19-pole HDMI connectors with screw lock for inputs and
outputs. Always use high quality HDMI cable for connecting sources
and displays.
3.3.2. Analog Stereo Audio
5-pole Phoenix connector is used for balanced analog
audio input or output. Unbalanced audio signals
can be connected as well. See more details about
the balanced and unbalanced I/O port wiring in the
Audio Cable Wiring Guide section.
Pin nr.
1
2
1 2 3 4 5
3
4
5
Analog audio connector and plug pin assignments
Compatible Plug Type
Phoenix Combicon series (3.5mm pitch, 5-pole), type: MC 1.5/5-ST-3.5.
®
3.3.3. Microphone IN
INFO: MMX8x8-HDMI-4K-A model has no microphone input.
The 3-pole Phoenix connector is used for the analog microphone
input. 48V phantom powering is available via connector.
Pin nr.
1
1 2 3
2
3
Microphone connector and plug pin assignments
INFO: The maximum rating of Microphone input is 48V and 7mA.
Compatible Plug Type
Phoenix Combicon series (3.5mm pitch, 3-pole), type: MC 1.5/3-ST-3.5.
®
You can find more information about the wiring in the
Audio Cable Wiring Guide
Installation Guide for Connecting a Microphone
3.3.4. RS-232 Connector
The receiver contains a 3-pole Phoenix connector which is
used for RS-232 serial connection.
1
RS-232 Output Voltage Levels
Signal
Left+
Left-
Compatible Plug Type
Ground
Phoenix
Right-
You can find more information about RS-232 in
Right+
3.3.5. Infra/ Serial TTL Connector
The matrix switcher contains a 2-pole Phoenix connector.
Depending on the destination port, it can be used for TTL
serial data output or Infra emitter.
1
TTL digital signal levels can be set to high or low level (Push-Pull).
Signal
Using a receiver with at least 1k impedance to any voltage between 0V
Ground and 5V, the output voltages are:
-
+
In that case the actual current is:
MMX8x4-HT series – User's Manual
section and about the connection in
section.
Pin nr. Signal
1 Ground
2 3
2 TX data
3 RX data
RS-232 connector pin assignments
▪ Logic low level: 3V .. 15V
▪ Logic high level: -15V .. -3V
Combicon series (3.5mm pitch, 3-pole), type: MC 1.5/3-ST-3.5.
®
Serial Interface
Pin nr. Signal
1 Ground
2
2 TX data
Infra/ TTL serial connector pin assignments
Logic low level: 0 .. 0.25V
▪
Logic high level: 4.75 .. 5.0V
▪
▪ Logic low level: -5mA < current < 0mA (sink)
Logic high level: 0mA < current < 5mA (source)
▪
Compatible Plug Type
Phoenix Combicon series (3.5mm pitch, 2-pole), type: MC 1.5/2-ST-3.5.
®
You can find more information about TTL in the
and about Infrared in the Infra Interface
3.3.6. IR Connector
IR emitter can be connected to the matrix switcher with TRS
(Tip, Ring, and Sleeve) connectors. They are also known as (3.5
mm or approx. 1/8") audio jack, phone jack, phone plug, and
mini-jack plug.
The pin assignments are the following :
Emitter – 2-pole-TS
1 Tip
2 Ring
3 Sleeve
section. INFO: Ring pole of the emitter is optional. If your IR emitter has
three pole- TRS plug, then the Ring and the Sleeve are the same
signal (Output - ).
You can find more information in the
16
Serial Interface section
section.
1 2
+5V
Signal (active low)
Infra Interface section.