Front Panel Operation
Video Select Button
Use the button to select video input source. The sequence is:
VGA
HDMI
DP
DVI-D
DVI-A
1
2
3
4
5
Audio Select Button
Use the button to select audio input source. The sequence is:
Analog audio (Jack)
Embedded audio
Analog audio (Phoenix)
1
Embedded audio is coming from the digital video input port (HDMI / DP / DVI-D) which is
currently selected. If analog video input signal (VGA / DVI-A) is selected which cannot contain
embedded audio, this source will be skipped.
Port Legend
1
Video only
1
Audio only
2
Video with embedded audio
Restore Factory Default Settings
1. Keep the Show Me button pressed for 10 seconds; after 5 seconds front panel LEDs
start to blink but keep the button pressed; the LEDs start to blink faster 5 seconds later.
2. Release the button, then press it 3 times quickly; the following factory default settings
are restored:
Crosspoint settings
Video - O1 (HDMI out)
I1 (VGA in)
Audio - O1 (HDMI out)
I1 (Analog audio in 1)
Video port properties
Autoselect
Disabled
Emulated EDID on analog video inputs
Factory #89: Universal Analog EDID
Emulated EDID on digital video inputs
Dynamic #1: Copy EDID from connected
sink device.
Network settings
IP address (static)
192.168.0.100
Subnet mask
255.255.255.0
Static gateway
192.168.0.1
DHCP
Disabled
TCP/IP port nr. LW2 / LW3
10001 / 6107
RS-232 settings
RS-232 mode
Control
Control protocol
LW2
Port setting
57600 BAUD, 8, N, 1
Command injection port
8001
GPIO settings
GPIO output level
High
GPIO direction
Input
Software Control – Using Lightware Device Controller (LDC)
The device can be controlled from a computer through the Ethernet or
RS-232 ports using Lightware Device Controller. Please download the
application from www.lightware.com, install on a Windows PC or a macOS
and connect to the device via the Ethernet or RS-232 port.
The default IP address of the device is: 192.168.0.100, DHCP is disabled.
Setting a Dynamic IP Address (DHCP)
1. Keep the Show Me button pressed for 5 seconds; all front panel LEDs start to blink.
2. Release the button, then press it 3 times quickly. DHCP is now enabled.
Types of IR connectors (1/8" TRS / TS)
2 pole, 1 ring: IR transmitter
3 pole, 2 rings: IR receiver
Typical Application
Huddle room
Autoselect
5
T h u
M I
H D
a l o
A n
L A N
A
V G
2 3 2
R S -
M I
H D
t o p
L a p
UMX-HDMI-140
Port Diagram
Analog video
VGA in
Digital video + Digital audio
HDMI in
Digital video + Digital audio
DP in
Analog video
DVI in
Digital video + Digital audio
Analog audio
Analog
audio in 1
Analog
Analog audio
audio in 2
H D
D i s
w i t
h b
o r t
a y P
s p l
/ D i
o l t
e r b
n d
i o
u d
g a
o k
c B o
M a
A
V G
t o p
L a p
M I
H D
t o p
L a p
2 IN
I-I
IN
DIO
DV
AU
P
HDC
NAL
SIG
OU
T
IR
IR
IN
IO
GP
2
RS
-23
mm
: 2.1
PIN
TX
RX
DC
1A
12V
M o
u n
u n
t e d
d e
r d
e s k
A/D converter
5:1 digital
A/V switch
Digital video
De-embedder
Digital
A/D converter
audio
3:1 digital
audio switch
Digital audio
A/D converter
Digital audio
A/D converter
GPIO - General Purpose Input/Output Ports
The device has seven GPIO pins which operate at TTL digital signal levels and can be set to
high or low level (Push-Pull). The direction of the pins can be input or output (adjustable). The
signal levels are the following:
Logical low level
Logical high level
p l a
y
u i l t
GPIO connector and plug pin assignment
- i n
s p e
Pin nr.
a k e
r s
1
2
3
4
5
6
7
The total available current of the controller is 180 mA.
Audio Cable Wiring Guide
UMX-HDMI-140 switcher is built with 5-pole Phoenix input connector. See below a few
example of the most common assembling cases.
From balanced output to balanced input
E T
R N
H E
E T
From unbalanced output to balanced input
For more information about audio cable wiring see the user's manual of the device or the
Wiring Guide on our website www.lightware.com.
Wiring Guide for RS-232 Data Transmission
The device is built with 3-pole Phoenix connector. See the below examples of connecting to a
DCE (Data Circuit-terminating Equipment) or a DTE (Data Terminal Equipment) type device:
Embedder
HDMI out
Digital
audio
For more information about the cable wiring see the user's manual of the device or the Cable
Wiring Guide on our website www.lightware.com/support/guides-and-white-papers.
Input voltage (V) Output voltage (V) Max. current (mA)
0 - 0.8
0 - 0.5
30
2 -5
4.5 - 5
18
Signal
1
2
3
4
5
6
7
Ground
From balanced output to balanced input
2x6.3 (1/4") TRS - Phoenix
2xXLR - Phoenix
From unbalanced output to balanced input
3.5 (1/8") TRS - Phoenix
2xRCA - Phoenix
Lightware device and a DCE
Lightware device and a DTE
D-SUB 9 – Phoenix
D-SUB 9 – Phoenix
TX RX
TX RX
5
1
1
5
9
6
6
9
2: TX data transmit
2: TX data receive
3: RX data receive
3: RX data transmit
5: Ground
5: Ground
8
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