StarTech.com ST12MHDLANU User manual

Manual Revision: 08/16/2023
For the latest information, technical specications, and support for
this product, please visit www.StarTech.com/ ST12MHDLANU.
FR: Guide de l’utilisateur - fr.startech.com
DE: Bedienungsanleitung - de.startech.com
ES: Guía del usuario - es.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
IT: Guida per l’uso - it.startech.com
ST12MHDLANU
HDMI over IP Extender Kit with USB
and Serial
*actual product may vary from photos

Instruction manual
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment o and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help
This device complies with part 15 of the FCC Rules. Operation is subject to the following
two conditions: (1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation.
Changes or modications not expressly approved by StarTech.com could void the user’s
authority to operate the equipment.
Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
CAN ICES-3 (B)/NMB-3(B)
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and do not
represent an endorsement of a product or service by StarTech.com, or an endorsement of the
product(s) to which this manual applies by the third-party company in question. Regardless
of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby
acknowledges that all trademarks, registered trademarks, service marks, and other protected
names and/or symbols contained in this manual and related documents are the property of
their respective holders.

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Table of Contents
Introduction............................................................................................1
Packaging contents.................................................................................................................................. 1
System requirements............................................................................................................................... 1
Product diagram ....................................................................................2
Transmitter Unit......................................................................................................................................... 2
Receiver Unit............................................................................................................................................... 3
Installation ..............................................................................................4
Preparing your site.................................................................................................................................... 4
Hardware installation .............................................................................................................................. 4
Software installation................................................................................................................................ 6
Software operation................................................................................6
Connecting your transmitters and receivers to the software ................................................... 6
Switching your remote displays between video sources........................................................... 10
Conguring your remote displays for a video wall application ............................................... 12
Advanced operation and help.............................................................................................................. 16
Technical support...................................................................................18
Warranty information............................................................................18

Introduction
Packaging contents
• 1 x HDMI over IP transmitter
• 1 x HDMI over IP receiver
• 2 x power adapters
• 2 x screws
• 1 x screwdriver
• 2 x Cat5 cables
• 2 x mounting brackets
• 1 x quick install guide
System requirements
• HDMI enabled video source (e.g. acomputer or Blu-ray™ player)
• HDMI enabled display device(s) (e.g. television, projector), one for each receiver
• HDMI cabling for your video source and each display
• Available AC electrical outlet for the transmitter and each receiver
• Network cabling for the extender and each receiver
• Standard USB A to USB B cable (optional for USB peripheral extension)
• Up to four USB peripheral devices (optional for USB peripheral extension)
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Product diagram
Transmitter Unit
1. USB host port
2. Video input port (HDMI)
3. LAN port (RJ-45 connector)
4. Reset button
5. Power jack
6. Link and power LED
7. Function 2 button
8. Function 1 button
9. Dip rotary switch
10. Serial control (not active)
11. Serial extension (for extending RS232 signal)
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Receiver Unit
1. USB peripheral ports
2. Video output port (HDMI)
3. LAN port (RJ-45 connector)
4. Reset button
5. Power jack
6. Link and power LED
7. Function 2 button
8. Function 1 button
9. Dip rotary switch
10. Serial control (not active)
11. Serial extension (for extending RS232 signal)
Note: Serial 1 (control) ports are not active. To control the ST12MHDLANU please
download our free mobile application. (see Page *.)
(Additional receiver units sold separately, StarTech.com SKU: ST12MHDLANUR)
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Installation
Preparing your site
Note: The ST12MHDLANU HDMI extender kit lets you extend your video and USB
signals over a Gigabit LAN network – beyond the typical cable length restriction of 330
ft. (100m) of Gigabit network portals.
Refer to the manufacturer of the network equipment to determine the length
restriction and to ensure the transmitter unit and receiver unit(s) are all within the
restricted range of the nearest network portal.
Ensure the transmitter unit, and receiver unit(s) are all situated near AC electrical
outlets.
1. Determine where the local video source (i.e. computer, Blu-ray player) will be
located and set up the transmitter device near that location.
2. Determine where the remote display will be located and set up the receiver near
that location.
3. (Optional) If using additional displays determine where they will be located and
set the additional receiver unit(s) near that location.
Hardware installation
Video wall or point to multi-point installation with a Gigabit LAN network
1. Install the transmitter unit
a) Connect a video source device, such as a computer or Blu-ray player, to the
transmitter’s video input port.
b) (Optional) If you’re using the ST12MHDLANU extender kit to extend USB peripheral
devices, use a standard USB A to USB B cable to connect the USB host port on the
transmitter unit to a USB port on a video source device such as a computer or Blu-
ray player.
c) Connect the transmitter’s DC 9-12V power jack to an AC electrical outlet, using one
of the included power adapters.
2. Install the receiver unit(s)
a) Connect a display to the receiver unit’s video output port using an HDMI cable.
b) (Optional) If you are using the ST12MHDLANU extender kit to extend USB peripheral
devices, connect up to four USB peripheral devices to the receiver unit’s USB ports.
c) Connect the receiver unit’s power jack to an AC electrical outlet, using one of the
included power adapters.

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d) (Optional) If you are using additional ST12MHDLANUR receivers (sold separately),
repeat steps [a) through c)] for each additional receiver.
Note: The rotary dip switches on the transmitter and each receiver connected to the
network must be set in the same position for the devices to communicate.
3. Connect the devices to a Gigabit LAN network
a) Connect an RJ-45 terminated Cat5e or Cat6 Ethernet cable to the LAN port on the
transmitter unit, and to each of the receiver units.
b) Connect the other end of the Cat5e or Cat6 cable to a Gigabit LAN hub, router or
switch.
Note: Your router must support IGMP snooping. Please refer to your network switch or
router documentation to ensure IGMP snooping is supported and enabled.
4. Verify that the image from your video source appears on video display(s) attached
to the receiver unit(s).
(Additional receiver units sold separately, StarTech.com SKU: ST12MHDLANUR)

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Software installation
The HDMI distribution kit features video control software that helps you manage your
IP video distribution and video wall conguration. The software is available on iOS for
iPhone or iPad, and Android™ for smartphones or tablets
To install the software:
1. Visit http://www.StarTech.com/ST12MHDLANU, using the device you intend to
install software on.
2. Under the overview tab, select the link for the store that corresponds with your
device.
3. Select the option to download and install the software from the store page.
4. Open the software, to verify that it has installed correctly.
Software operation
Connecting your transmitters and
receivers to the software
Notes:
• Your router must support IGMP snooping. Please refer to your network switch or
router documentation to ensure IGMP snooping is supported and enabled on your
router.
• The smartphone or tablet, that you’ve installed the software on, is connected to the
same network as your transmitter(s) and receiver(s)
1. Launch the application by clicking the icon on your smartphone or tablet.

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2. The application will open on the Devices tab, and will automatically search for
transmitters and receivers on your network and list them within the Devices tab.
Note: you can reinitiate the device search, by selecting refresh button in the top
right-hand corner of the Devices tab.