Harman AMX VPX-1401 User manual

User Manual – VPX-1401
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Table of Contents
IMPORTANT SAFETY INSTRUCTIONS ............................................................................. 2
Overview ...................................................................................................................... 6
Features.................................................................................................................. 6
Package Contents .................................................................................................... 6
Specifications ........................................................................................................... 7
Transmission Distance ..................................................................................... 9
Panel Description................................................................................................... 10
Front Panel Description .................................................................................. 10
Rear Panel Description ................................................................................... 15
Pinout Information ........................................................................................................15
RS232&IR ............................................................................................................. 15
Audio IN/OUT........................................................................................................ 15
Installation and Wiring..................................................................................................16
Installation ........................................................................................................... 16
Wiring ................................................................................................................... 16
OSD.............................................................................................................................18
Input Source Switching .................................................................................................19
Auto Switching ...................................................................................................... 19
Manual Switching ................................................................................................... 19
IR Operation ................................................................................................................20
Control the Source................................................................................................. 20
RS232 Operation ..........................................................................................................21
NetLinx Control ..............................................................................................................22
Device Number and Ports....................................................................................... 22
Send command to control a device ......................................................................... 23
Telnet Control ....................................................................................................... 23
Launch Telnet Window .................................................................................... 23
Web UI Control...................................................................................................... 22
Web UI Control ............................................................................................................23
Header Bar............................................................................................................ 23
Navigation Bar....................................................................................................... 24
Auto Switch .................................................................................................... 24
Key Lock ........................................................................................................ 25
HDCP............................................................................................................ 25
EDID ............................................................................................................. 25
Display.......................................................................................................... 26
Audio............................................................................................................ 26
Resolution ...................................................................................................... 26

User Manual – VPX-1401
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Logo ............................................................................................................. 27
Network ........................................................................................................ 28
System.......................................................................................................... 29
Firmware Upgrade........................................................................................................32
Before Starting ...................................................................................................... 32
Transferring KIT Files............................................................................................. 32
Troubleshooting ...........................................................................................................34
APICommandSet ..........................................................................................................35
NetLinx Commands................................................................................................ 35
Telnet/SSH Commands........................................................................................... 44

User Manual - VPX-1401 6
Overview
VPX-1401 is an advanced presentation switcher, allowing switching among four inputs and distribution to two outputs. It offers
one VGA input with one balanced analog audio embedded, three HDMI inputs, one HDMI output to a local display, plus one
balanced de-embedded analog audio output and one HDBaseT mirrored output to a remote display via a Cat X cable.
The VPX-1401 has one built-in scaler which supports up to 4K@60Hz 4:4:4 8bit. The video stream goes through the scaler first
before distributing to two outputs. The scaler output can be set to fixed resolution or auto scaling. When set to auto scaling, the
scaler analyzes the EDIDs of two connected displays and outputs optimum resolution for both displays.
The VPX-1401 can be set to auto switching or manual switching. The VPX-1401 can be controlled by front panel buttons, LAN
control with NetLinx Studio, Telnet API and Web GUI.
Powered by HDBT 2.0 and DSC (Display Stream Compression), the VPX-1401 can transmit 4K@60Hz 4:4:4 8bit video up to
80m / 262 ft via a Shielded Cat 6a/7 cable, with USB 2.0 (Host), bidirectional RS232 and IR pass-through. HDBaseT output
also features PoE (PSE) to power an HDBT receiver.
The VPX-1401 simplifies integration and installation of a small presentation system for classrooms and small offices, providing
localized presentation switching support over long distances.
Features
• Provides one VGA input with balanced embedded audio, three HDMI inputs, one HDMI and HDBT mirrored outputs
• HDMI inputs, HDMI and HDBT outputs support up to 4K@60Hz 4:4:4 8bit and HDCP 2.2; VGA input supports
up to 1920 x 1200@60Hz.
• Built-in scaler supports up to 4K@60Hz 4:4:4 8bit
• Supports one-way PoE to power a remote HDBT receiver
• HDBT transmits 4K@60 4:4:4 signals up to 80m/262 ft, 1080P signal up to 100m/328ft via a shielded Cat6a/7 cable.
• Transmits USB 2.0, bi-directional RS232 and IR signal over HDBT.
• Balanced de-embedded analog audio output with volume control.
• Auto-switching to the latest connected source input by detecting input signal status.
• Fast switching.
• Able to turn on/off connected displays automatically by detecting input signal status with its built-in CEC controller.
• Selection buttons on the front panel for local control and contact closures for remote keypad control.
• Supports LAN control through NetLinx Studio, Telnet API and WEB UI.
Package Contents
• 1 x VPX-1401
• 1 x DC 12V Power Adapter with US, UK and EU AC Power Cords
• 4x Phoenix Male Connector (3.5mm, 5 Pins)
• 1x Phoenix Male Connector (3.5mm, 6 Pins)
• 2 x Mounting Bracket (with Screws)

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Pinout Information
The following figures show the pinouts of the phoenix connectors.
RS232&IR
Connects to the RS232 and IR devices with the 6-pole, 3.5mm captive screw connectors.
Audio IN/OUT
Connect to audio device with the 3-pole, 3.5mm captive screw connector.

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Installation and Wiring
Warning: Before installation, ensure the device is disconnected from the power source.
Installation
1. Attach the installation bracket to the enclosure using the four screws provided.
2. The bracket is attached to the enclosure as shown.
3. Repeat steps 1-2 for the other side of the unit.
4. Attach the brackets to a surface or suitable location with user supplied screws.
Wiring
Warning:
• Before wiring, disconnect the power from all devices.
• Connect and disconnect the cables with care.
1. Connect the video source
Connect the VGA and HDMI sources (such as PC, Blu-ray player, Apple TV, 4K media player, etc) to the VGA IN and HDMI
IN ports of the VPX-1401.
2.
Connect HDMI OUT
Connect an HDMI display device (such as TV, projector, LED/LCD display) to the HDMI OUT of the VPX-1401.
3. Connect AUDIO OUT
Connect an audio receiver (e.g. an amplifier) to the AUDIO OUT of the VPX-1401.
4. Connect HDBT OUT
Connect
HDBT OUT of VPX-1401 to HDBT IN of an HDBT receiver with a Cat 5e/6/6a/7 cable.
5. Connections for additional controloptions:
• LAN control (NetLinx/Telnet/Web UI): Connect a Local Area Network to the LAN port of the VPX-1401.
• Input source switching control: Connect a keypad and LEDs to CONTACT IN and TALLY OUT ports for input switching and tally
indication.
• USB control: Connect a USB host to the VPX-1401, and USB devices to the HDBT receiver for remote KVM control.
• RS232 pass-through: Connect an RS232 server device (or client device) to the RS232 port of the VPX-1401, and an RS232 client
device (or server device) to the RS232 port of the remote receiver for bidirectional RS232 pass-through.
• IR pass-through: Connect an IR emitter (or IR receiver) to the IR connector of the VPX-1401, and an IR receiver (or IR emitter) to
the IR connector of the HDBT receiver for bi-directional IR pass-through.
6. Connect the power adapter provided to the VPX-1401.
One-way PoE enables the VPX-1401 to power the remote HDBT DSC receiver along a single Cat X cable. No additional power
adapter is required at the receiver.
7. Power on all attacheddevices.
When all connections are made and power is ON, check if all LED indicators on the VPX-1401 are normal to ensure the
installation is successful. For LED indication, please refer to the Panel Description section.

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OSD
The VPX-1401 supports OSD (On Screen Display) to display its IP address. Follow these steps to initiate OSD:
1. Press and Hold the front panel buttons Input 1 and Input 2 for at least 3 seconds.
2. The IP address of the VPX-1401 will display at the upper right of the connected display’s screen for about 15s
and then disappear.

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Input Source Switching
VPX-1401 supports Auto and Manual Switching among the VGA and HDMI inputs.
Auto Switching
1. When multiple sources are inserted, and power is ON for all devices, the input will be switched to the active source with
the highest priority.
2. Priority: VGA IN 1 > HDMI IN 2 > HDMI IN 3 > HDMI IN 4
3. When a new source is inserted, the input will be switched to it automatically, following the Last-In-First-Out rule.
4. When the currently selected source is removed, the input will first be switched to the most recently selected port. If the
port has no active source, the input will be switched to the active source with the highest priority.
Note:
• When in Auto Switching, Input Select buttons do not function. To use input select buttons, disable Auto Switching.
• The Auto Switching function is enabled by default once all devices are powered on.
• You can enable or disenable Auto Switching through command setting or WEB UI on NetLinx.
Manual Switching
If you want to select a specific input port using input selection buttons:
1. Disable Auto Switching through command setting or WEB UI on NetLinx.
2. Press the appropriate Input Select Button to select a desired input port. When an inactive port is selected, the VPX-1401
will output no signal.

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NetLinx Control
Controlling the VPX-1401 through NetLinx Studio.
Before launching NetLinx Studio, connect the
VPX-1401 , PC, control system (e.g. NX-3200) to the same network.
Note: IDs and IP addresses in the following illustrations are examples. Check the Online Tree in NetLinx Studio to find the
correct addresses for your device.
Device Number and Ports
Each VPX-1401 has its own Device Number (which is assigned when the unit is bound to a Control System) and the following ports.
Port 1: VGA IN 1 (AUDIO IN 1); HDMI OUT; HDBT OUT; AUDIO OUT
Port 2: HDMI IN 2
Port 3: HDMI IN 3
Port 4: HDMI IN 4
Port 5-8: Unused
Port 9: RS-232
Port 10: HOST
Port 11: IR
Port 12-21
: Unused
Port 22: CONTACT IN
Port 23: TALLY OUT
In NetLinx Studio’s Online Tree, the VPX-1401 module displays its ports.

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Send command to control a device
Click “Diagnostics” on the menu bar, select “Control a Device”.
A window will display as follows, type the Device number, Port number, System and command respectively, and click “ Send To
Device
”. (For API commands, see the Section API Command Set .)
Telnet Control
LaunchTelnetWindow
To launch Telnet Window,
1. Right click the Device Number in NetLinx Studio’s Online Tree, select “TELNET Window” – “Launch TELENT Window via NetLinx
Studio” (or “Launch TELENT Window via User Defined Program”)*.