User Guide Owner's manual
The VNM 250 series also supports a reverse audio channel for collaborative applications
where 2‑way communication is required.
The VND 250 video output is available only in digital format. It can be configured to display
at the same resolution and refresh rate as the encoder input or it can be scaled to match the
requirements of the display attached to the decoder.
The decoder supports both digital audio, analog audio, or both. The audio output is
independent of the encoder audio source.
UDP network data originating from an external source is streamed along with the video and
audio content to the appropriate decoder, where it is extracted for onward processing.
RS‑232 pass‑through data transport is full duplex. It can originate at either the encoder or
decoder and may be sent to multiple destinations. It passes through the system unchanged
and may not be recorded.
Figure 1 shows a typical application for the VNM 250.
LAN 1
LAN 2
RESET
HDMI
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM GENLOCKCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
L
R
STREAMINGCONTROL
COMS INPUT
I/O
OUTPUT
OUTPUT
1
2
USB
LAN 1
LAN 2
RESET
HDMI
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM GENLOCKCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
L
R
STREAMINGCONTROL
COMS INPUT
I/O
OUTPUT
OUTPUT
1
2
USB
LAN 1
LAN 2
RESET
HDMI
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM GENLOCKCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
LR
STREAMINGCONTROL
COMS INPUT
I/O
OUTPUT
OUTPUT
1
2
USB
LAN 1
LAN 2
PC
RESET
HDMI
LOOP THRU LOOP THRU
LOOP
THRU
RGB
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM TTLCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
LR
STREAMINGCONTROL
USB
INPUT 1
INPUT 2
COMS
I/O
OUTPUT
LAN 1
LAN 2
PC
RESET
HDMI
LOOP THRU LOOP THRU
LOOP
THRU
RGB
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM TTLCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
LR
STREAMINGCONTROL
USB
INPUT 1
INPUT 2
COMS
I/O
OUTPUT
LAN 1
LAN 2
PC
RESET
HDMI
LOOP THRU LOOP THRU
LOOP
THRU
RGB
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM TTLCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
LR
STREAMINGCONTROL
USB
INPUT 1
INPUT 2
COMS
I/O
OUTPUT
LAN 1
LAN 2
PC
RESET
HDMI
LOOP THRU LOOP THRU
LOOP
THRU
RGB
ACT/
LINK
-A MAX
POWER
12V
AUDIO
L
TxRx
PASS THRUALARM TTLCONTROL
GTxRxNOG IN GOUT
R
RETURN AUDIO
LR
STREAMINGCONTROL
USB
INPUT 1
INPUT 2
COMS
I/O
OUTPUT
INPUT
LAN
POWER
12V
500mA
MAX
1234
COM 3 IR
3
SGSG
TxRx
4
RELAY
3
4
COM1
TxRx
RTS CTS
COM 2 IR
1
SGSG
TxRx
2
RELAY
1
2
MODEL 80
FLAT PANEL
MODEL 80
FLAT PANEL
MODEL 80
FLAT PANEL
Extron
VN-Matrix Enterprise Controller
Extron
VNR 100
VN-Matrix Recorder
RGB
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
Ethernet
RGB
HDMI
Ethernet
HDMI
HDMI
Flat Panel Display
HDMI
Extron
VNE 250 Matrix
VN-Matrix Encoder
HDMI/RGB
Extron
VNE 250 Matrix
VN-Matrix Encoder
HDMI/RGB
Extron
VND 250 Matrix
VN-Matrix Decoder
HDMI/RGB
HDMI
Flat Panel Display
PC
PC
PC
HD PTZ Camera
Extron
VND 250 Matrix
VN-Matrix Decoder
HDMI/RGB
HDMI
Ethernet
HDMI
Extron
VNE 250 Matrix
VN-Matrix Encoder
HDMI/RGB
Ethernet
Extron
VNE 250 Matrix
VN-Matrix Encoder
HDMI/RGB
Encoded Inputs Location 1 Decoding
Extron
TLP 1000TV
10" Tabletop
TouchLink
Touchpanel
HDMI
Flat Panel Display
Extron
VND 250 Matrix
VN-Matrix Decoder
HDMI/RGB
Location 2 Decoding
Extron
TLP 1000TV
10" Tabletop
TouchLink
Touchpanel
Extron
IPL 250
IP Link Control
Processor
IP
Network
Virtual
Switching
Figure 1. A Typical VNM 250 Application
VNM 250 • Introduction 2