IDK IMP-400UHD User manual

4K@60/HDCP 2.2 HDMI Switcher
IMP-400UHD
<User Guide>
Ver.2.2.0
Thank you for choosing our product.
To ensure the best performance of this product, please read this user guide fully and carefully before
using it and keep this manual together with the product for future reference as needed.
IDK Corporation

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Trademarks
Blu-ray Disc and Blu-ray are trademarks of Blu-ray Disc Association.
Google Chrome is trademark or registered trademark of Google Inc.
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or
registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
Javascript®is a trademark or registered trademark of Oracle Corporation, its subsidiaries, and affiliated
companies in the United States and other countries.
Microsoft, Windows, Internet Explorer are either registered trademarks or trademarks of the Microsoft
Corporation in the United States and other countries.
The terms Mozilla and Firefox, and their logos are registered trademarks or trademarks of Mozilla
Foundation in the United States and other countries.
Oracle and Java are trademarks of Oracle Corporation its subsidiaries, and affiliated companies in the
United States and other countries.
The terms Anti-snow and Connection Reset are registered trademarks of IDK Corporation in Japan.
All other company and product names mentioned in this manual are either registered trademarks or
trademarks of their respective owners. In this manual, the “®” or “™” marks may not be specified.

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Before reading this manual
All rights reserved.
Some information contained in this User guide such as exact product appearance, diagrams, menu
operations, communication commands, and so on may differ depending on the product version.
This User guide is subject to change without notice. You can download the latest version from IDK’s
website at: http://www.idkav.com
The reference manual consists of the following two volumes:
■User guide (this document):
Provides explanations and procedures for operations, installation, connections among devices,
I/O adjustment and settings.
■Command guide: Please download the command guide from the website above.
Provides explanations and procedures for external control using RS-232C and LAN communications.
FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference, in which case the user will be required to correct the interference
at his own expense.
CE MARKING
This equipment complies with the essential requirements of the relevant European health, safety and
environmental protection legislation.
WEEE MARKING
Waste Electrical and Electronic Equipment (WEEE), Directive 2002/96/EC
(This directive is only valid in the EU.)
This equipment complies with the WEEE Directive (2002/96/EC) marking requirement.
The left marking indicates that you must not discard this electrical/electronic equipment in
domestic household waste.

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Safety Instructions
Read and understand all safety and operating instructions before using this product. Follow all instructions
and cautions as detailed in this document.
Enforcement Symbol
Description
Indicates the presence of a hazard that may result in death or serious
personal injury if the warning is ignored or the product is handled
incorrectly.
Indicates the presence of a hazard that may cause minor personal
injury or property damage if the caution is ignored or the product is
handled incorrectly.
Symbol
Description
Example
Caution
This symbol is intended to alert the user. (Warning and caution)
Electrical
Hazard
Prohibited
This symbol is intended to prohibit the user from specified actions.
Do not
disassemble
Instruction
This symbol is intended to instruct the user.
Unplug
Caution
Warning

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■For lifting heavy products:
Instruction
●Lifting must be done by two or more personnel.
To avoid injury: When lifting the product, bend your knees, keep your back straight and get close to it with two or
more persons.
■For installing and connecting products:
Prohibited
●Do not place the product upon a surface that may give way or that may become
unstable.
Install the product in a secure and stable place to prevent it from falling and possibly causing injury.
●Secure the product if installing in locations prone to vibration or movement.
Otherwise, it may move unexpectedly or it may fall and lead to injury.
Instruction
●Installation work must be performed by professionals.
The product is intended to be installed by skilled technicians. For installation, please contact a system integrator
or IDK. Improper installation may lead to the risk of fire, electric shock, injury, or property damage.
●Insert the power plug into an outlet that is unobstructed.
Unobstructed access to the plug enables unplugging the product in case of any extraordinary failure, abnormal
situation or for easy disconnection during extended periods of non-use.
●Insert the power plug into an appropriate outlet completely.
If the plug is partially inserted, arching may cause the connection to overheat, increasing the risk of electrical
shock or fire. Do not use a damaged plug or connect to a damaged outlet.
●Unplug the product from the AC power source during installation or service.
When connecting peripheral devices to this product, unplug all involved devices from outlets. Ground potential
differences may cause fire or other difficulties.
■For operating products:
Prohibited
●Keep out any foreign objects.
To avoid fire or electric shock, do not permit foreign objects, such as metal and paper, to enter the product from
vent holes or other apertures.
●For power cable/ plug:
・
Do not scratch, heat, or modify, including splicing or lengthening them.
・
Do not pull, place heavy objects on them, or pinch them.
・
Do not bend, twist, tie or clamp them together forcefully.
Misuse of the power cable and plug may cause fire or electric shock. If power cables/plugs become damaged,
contact your IDK representative.
Do not
disassemble
●Do not repair, modify or disassemble.
Since the product includes circuitry that uses potentially lethal, high voltage levels, disassembly by unauthorized
personnel may lead to the risk of fire or electric shock. For internal inspection or repair, contact your IDK
representative.
Do not touch
●Do not touch the product and connected cables during electrical storms.
Contact may cause electric shock
Instruction
●Clean the power plug regularly.
If the plug is covered in dust, it may increase the risk of firer.
Warning

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■If the following problem occurs:
Unplug
●Unplug immediately if the product smokes, makes unusual noise, or produces a
burning odor.
If you continue to use the product under these conditions, it may cause electric shock or fire.
●Unplug immediately if the product is damaged by falling or having been dropped.
If you continue to use the product under these conditions, it may increase the risk of electrical shock or fire. For
maintenance and repair, contact your IDK representative.
●Unplug immediately if water or other objects are directed inside.
If you continue to use the product under these conditions, it may increase the risk of electrical shock or fire. For
maintenance and repair, contact your IDK representative.
Warning

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■For installing and connecting products:
Prohibited
●Do not place the product in a location where it will be subjected to high
temperatures.
If the product is subjected to direct sunlight or high temperatures while under operation, it may affect the
product’s performance and reliability and may increase the risk of fire.
●Do not store or operate the product in dusty, oil smoke filled, or humid place.
If the product is placed near humidifiers or in a dusty area, it may increase the risk of fire or electric shock.
●Do not block the vent holes.
If ventilation slots are blocked, it may cause the product to overheat, affecting performance and reliability and
may increase the risk of fire.
●Do not place or stack heavy items on the product.
Failure to observe this precaution may result in damage to the product and other property and may lead to the
risk of personal injury.
●Do not exceed ratings of outlet and wiring devices.
Exceeding the rating of an outlet may increase the risk of fire and electric shock.
No wet hands
●Do not handle power plug with wet hands.
Failure to observe this precaution may increase the risk of electrical shock.
Instruction
●Use and store the product within the specified temperature/humidity range.
If the product is used outside the specified range for temperature and humidity continuously, it may increase the
risk of fire or electric shock.
●Do not place the product at elevations of 1.24 mi. (2,000 m) or higher above sea
level.
Failure to do so may shorten the life of the internal parts and result in malfunctions.
●When mounting the product into the rack, provide sufficient cooling space.
Mount the product in a rack meeting EIA standards, and maintain spaces above and below for air circulation. For
your safety as required, attach an L-shaped bracket in addition to the panel mount bracket kit to improve
mechanical stability.
●Never insert screws without the rubber feet into the threaded holes on the bottom
of the product.
Never insert screws without the rubber feet into the threaded holes on the bottom of the product. Doing so may
lead to damage when the screws contact electrical circuitry or components inside the product.
Reinstall the originally supplied rubber feet using only the originally supplied screws.
■For operating products:
Prohibited
●Use only the supplied power cable and AC adapter.
●Do not use the supplied power cable and AC adapter with other products.
If non-compliant adapter or power cables are used, it may increase the risk of fire or electrical shock.
Unplug
●If the product won’t be used for an extended period of time, unplug it.
Failure to observe this precaution may increase the risk of fire.
●Unplug the product before cleaning.
To prevent electric shock.
Caution

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Table of Contents
1Included Items........................................................................................................................................... 11
2Product Outline ......................................................................................................................................... 12
3Features.................................................................................................................................................... 13
4Panels....................................................................................................................................................... 14
4.1 Front panel...........................................................................................................................................14
4.2 Rear panel ...........................................................................................................................................15
5Application example.................................................................................................................................. 16
6Precautions............................................................................................................................................... 17
6.1 Attaching Rubber feet..........................................................................................................................17
6.2 Installation............................................................................................................................................17
6.3 Cabling.................................................................................................................................................18
6.3.1 Cables ......................................................................................................................................... 19
6.3.2 Connecting audio cables............................................................................................................. 20
6.3.3 Connecting RS-232C cable......................................................................................................... 20
6.3.4 5V Power output/Contact input/Tally output................................................................................ 21
6.3.5 AC adapter with screw locking mechanism ................................................................................ 24
7Basic Operation ........................................................................................................................................ 25
7.1 Operation from input channel selection key ........................................................................................26
7.1.1 Selecting input channels ............................................................................................................. 26
7.1.2 Locking and Unlocking input channel selection keys.................................................................. 27
7.1.3 Setting sequence switching mode .............................................................................................. 28
7.1.4 Initialization.................................................................................................................................. 28
7.2 Web menu operation ...........................................................................................................................29
7.2.1 Starting WEB menu..................................................................................................................... 30
7.2.2 How to use WEB menu............................................................................................................... 31
7.2.3 Selecting input channels ............................................................................................................. 32
7.2.4 Locking and Unlocking input channel selection keys.................................................................. 33
7.2.5 Setting sequence switching mode .............................................................................................. 34
7.2.6 Changing name of input channel selection buttons.................................................................... 35
7.2.7 Setting buzzer of input channel selection buttons....................................................................... 35
7.2.8 Setting automatic reload time of WEB menu.............................................................................. 36
7.2.9 Backing up/Restoring settings..................................................................................................... 37
7.2.10 Initialization.................................................................................................................................. 38
7.2.11 Displaying version....................................................................................................................... 39
7.3 Connecting to non-4K-compliant source device..................................................................................40
7.3.1 From channel selection keys (EDID changing mode)................................................................. 40
7.3.2 Operation from WEB menu......................................................................................................... 42
7.3.3 Operation from command ........................................................................................................... 42
7.4 Factory default.....................................................................................................................................43
8Settings..................................................................................................................................................... 45
8.1 WEB menu...........................................................................................................................................45
8.2 Switching settings................................................................................................................................46
8.2.1 Priority of input channel automatic switching.............................................................................. 47
8.2.2 Masking time after automatic switching ...................................................................................... 50
8.2.3 Video to be output when input channel is changed OFF to ON.................................................. 50
8.2.4 Sequence switching mode.......................................................................................................... 51
8.2.5 Target channels for sequence switching mode........................................................................... 53

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8.2.6 Switching interval of sequence switching mode.......................................................................... 53
8.2.7 Input detection............................................................................................................................. 53
8.2.8 Start channel of sequence switching mode ................................................................................ 54
8.3 Input settings .......................................................................................................................................55
8.3.1 Non-signal input monitoring ........................................................................................................ 56
8.3.2Input HDCP settings.................................................................................................................... 57
8.4 Output settings.....................................................................................................................................58
8.4.1 Output mode................................................................................................................................ 59
8.4.2 Checking Sink device’s EDID...................................................................................................... 60
8.4.3 HDCP re-authentication .............................................................................................................. 60
8.5 Audio settings ......................................................................................................................................61
8.5.1 Mute ............................................................................................................................................ 61
8.6 Contact input........................................................................................................................................62
8.6.1 Chattering reduction.................................................................................................................... 62
8.7 EDID ....................................................................................................................................................63
8.7.1 EDID resolution........................................................................................................................... 64
8.7.2 Deep Color.................................................................................................................................. 67
8.7.3 Audio format................................................................................................................................ 67
8.7.4 Speaker configuration................................................................................................................. 68
8.7.5 Copying EDID.............................................................................................................................. 69
8.8 RS-232C..............................................................................................................................................70
8.8.1 Setting Baud rate ........................................................................................................................ 70
8.8.2 Setting data bit length ................................................................................................................. 71
8.8.3 Setting parity check..................................................................................................................... 71
8.8.4 Setting stop bit............................................................................................................................. 71
8.9 LAN......................................................................................................................................................72
8.9.1 Setting TCP port number ............................................................................................................ 72
8.9.2 Setting IP address....................................................................................................................... 73
8.9.3 Setting Subnet mask................................................................................................................... 73
8.9.4 Displaying MAC address............................................................................................................. 73
8.10 Startup settings....................................................................................................................................74
8.10.1 Start-up input channel................................................................................................................. 75
8.10.2 Keylock at startup........................................................................................................................ 75
8.11 Other settings ......................................................................................................................................76
8.11.1 Buzzer tone................................................................................................................................. 76
8.11.2 Displaying version....................................................................................................................... 77
8.12 Displaying status (Web menu).............................................................................................................78
8.12.1 Input signal status ....................................................................................................................... 79
8.12.2 Sink device status ....................................................................................................................... 82
8.12.3 Displaying error message ........................................................................................................... 83
8.12.4 Displaying sink device EDID....................................................................................................... 85
9Communication Specification and Setup.................................................................................................. 87
9.1 RS-232C communication.....................................................................................................................87
9.1.1 Connecting RS-232C cable......................................................................................................... 87
9.1.2 RS-232C communication specification ....................................................................................... 87
9.1.3 Setting up RS-232C communication........................................................................................... 88
9.2 LAN communication.............................................................................................................................89
9.2.1 LAN connector specification........................................................................................................ 89
9.2.2LAN communication specification............................................................................................... 89
9.2.3 Setting up LAN communication................................................................................................... 90

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9.2.4 The number of TCP-IP connections............................................................................................ 91
10 Product Specification................................................................................................................................ 92
11 Troubleshooting........................................................................................................................................ 94

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1 Included Items
Ensure that all items illustrated below are included in the package.
If any items are missing or damaged, please contact IDK.
One (1) main unit (IMP-400UHD)
One (1) AC adapter with screw lock
Five (5) cable clamps
One (1) 5-pin terminal block
Seven (7) 3-pin terminal blocks
Four (4) rubber feet
[Fig. 1.1] Included items

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2 Product Outline
The IMP-400UHD is a 4x1 HDMI signal switcher supporting 4K@60 video signal and HDCP2.2 (hereafter
referred to as “IMP”).
Digital audio signal is converted into analog and output from the AUDIO OUTPUT connector.
Settings can be set remotely using RS-232C and LAN ports.
Contact inputs/tally outputs enable the IMP to be controlled from the PC I/O board and a control box.
EDID emulator
IMP-400UHD
Analog audio
L/R balanced/unbalanced
Output
1
Up to 98. ft. (30 m)*
Digital video/audio
HDMI DVI Inputs
4
Digital video/audio
HDMI DVI Output
1
Video・audio
switch
*Transmission distances
1080p@60 : Up to 98 ft. (30 m)
4K@60 : Up to 39 ft. (12 m) (when cable supporting 18 Gbps transmission is used)
Video/audio
Audio
D/A
conversion
Up to 98 ft. (30 m)*
[Fig. 2.1] Diagram

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3 Features
■
Video
・Up to 4K@60 (4:4:4)
・HDCP 1.4/2.2
・HDR
・3D
・x.v.Color
・Transmission distances
1080p@60 : Up to 98 ft. (30 m)
4K@60 : Up to 39 ft. (12 m) (when cable supporting 18 Gbps transmission is used)
・Anti-snow
■
Audio
・De-embedding
■
Control input
・RS-232C
・LAN
・Contact closure
■
Others
・EDID emulation
・All functions and configuration settings accessible through browser
・Input channel automatic switching
・Input channel sequence switching
・DDC buffer
・Last memory
・Connection Reset
・Front key function lock
・AC adapter with locking mechanism

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4 Panels
4.1 Front panel
① ② ③ ④ ⑤
[Fig. 4.1] Front panel drawing
[Table 4.1] Front panel features
#
Feature
Description
①
POWER LED
Shows power status of the IMP.
Illuminating (green) : Powered ON.
Does not illuminate : Powered OFF.
②
LOCK LED
Shows lock status of input channel selection keys.
Illuminating (green) : Being locked.
Does not illuminate : Lock is released.
【
See: 7.1.2 Locking and Unlocking input channel selection keys
】
③
SEQUENCE LED
Shows execution status of sequence switching mode.
Illuminating (green) : Being executed.
Does not illuminate : The switching mode is released.
【See: 7.1.3 Setting sequence switching mode】
④Input channel selection
keys
Selects input channels.
【
See: 7.1.1 Selecting input channels
】
⑤
INPUT SIGNAL LED
Shows input detection of video signal.
Illuminating (yellow) : Video signal is input.
Does not illuminate : No video signal is input.

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4.2 Rear panel
③ ①
⑩ ⑪
④⑧⑦ ⑨ ⑥ ⑤
②
[Fig. 4.2] Rear panel drawing
[Table 4.2] Rear panel features
#
Feature
Description
①
HDMI input connectors
For HDMI and DVI signals to interface source devices, such as
Blu-ray players
②HDMI cable fixing holes Retains HDMI cables by inserting cable clamps
【
See: [Fig. 6.1] Attaching a cable clamp
】
③
HDMI output connector
For HDMI and DVI signal interfaces with sink device such as LC
monitor and projector
④
AUDIO OUTPUT
connector
Analog audio output connector interfaces to amplifier, speaker,
or mixer Digital audio signal that is input from an HDMI input
connector will be converted and output.
⑤
LAN port
For external control using communication commands or built-in
Web pages
⑥RS-232C port For external control using communication commands
【
See: 6.3.3 Connecting RS-232C cable
】
⑦
Contact input/Tally output
connectors
Contact input/Tally output connector
For external control using a switch box or the like
【See: 6.3.4 5V Power output/Contact input/Tally output】
⑧5V power output connector For external Tally LED or the like
【
See: 6.3.4 5V Power output/Contact input/Tally output
】
⑨
Maintenance port
Factory use only
⑩
AC power inlet
For use with provided power cable
【See: 6.3.5 AC adapter with screw locking mechanism】
⑪Frame ground For bounding chassis to local ground. An M4 screw is used.

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5 Application example
Source and sink devices are connected to the IMP.
Blu-ray player
Speakers
Power amplifier
Analog audio
Contact input
Blu-ray player Blu-ray player Blu-ray player
HDMI/DVI
Up to 39 ft. (12 m)* LAN
4K Monitor Controller
PC
Tally output
Power output
HDMI/DVI
Up to 39 ft. (12 m)* HDMI/DVI Up to 39 ft. (12 m)* HDMI/DVI Up to 39 ft. (12 m)* HDMI/DVI Up to 39 ft. (12 m)*
*Transmission distances
1080p@60 : Up to 98 ft. (30 m)
4K@60
: Up to 39 ft. (12 m) (when cable supporting 18 Gbps transmission is used)
[Fig. 5.1] Application example

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6 Precautions
Before connecting to external devices, follow the precautions below.
6.1 Attaching Rubber feet
First, clean the bottom surface of the IMP as needed, and then peal the release papers from the rubber feet
and place them in each of the four corners.
6.2 Installation
When installing the IMP, please observe the following precautions.
・Do not stack or place one IMP directly on top of another IMP.
・Do not block vent holes. To provide adequate ventilation, maintain sufficient clearances around
the IMP, 1.2 in. (30 mm) or more.
・When the IMP needs to be mounted in an enclosed space or an EIA rack without using IDK’s rack
mounting hardware (RM-44S, RM-44D, and RM-SH), ensure that a sufficient ventilation/cooling
system is provided to keep the ambient temperature at 104°F (40°C) or lower. If inadequately vented,
the product’s service life, operation, and reliability may be affected.

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6.3 Cabling
When connecting the IMP to external devices, please observe the following precautions.
・Read manuals for the external devices.
・Before you connecting cables to the IMP or an external device, dissipate static electricity by touching
grounded metal such as racks before handling signal cables. Failure to observe this precaution may
result in ESD (electrostatic discharge) damage.
・Power all units off before connecting cables.
・Be sure to fully seat all plugs and connections and dress cables to reduce stress on connectors.
・Secure HDMI cables using cable clamps to prevent connectors from being accidently pulled out of
ports.
Fixing HDMI cable using cable clamp
Removing HDMI cable and cable clamp
①②③
Pull out while pressing
④
② ④ ⑤
①③
[Fig. 6.1] Attaching a cable clamp

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6.3.1 Cables
If the video is 4K format, the TMDS data rate (transmission speed) is 18 Gbps at maximum. If a high-speed
HDMI cable, the TMDS data rate becomes 10.2 Gbps at maximum, and video cannot be displayed stably.
Use an 18 Gbps high-speed cable according to each 4K format.
The maximum distance varies depending on the cable type, characteristics of the source device and monitor;
the best cable for each format is recommended.
[Table 6.1] 18 Gbps high-speed cable for 4K format
TMDS Data rate (Gbps)
RGB, YCbCr 4:4:4
YCbCr 4:2:2
YCbCr 4:2:0
4K Format 24 bit 30 bit 36 bit 24 bit 30 bit 36 bit 24 bit 30 bit 36 bit
3840x2160p (24/25/30) 10.2
Gbps
18
Gbps
18
Gbps
10.2
Gbps
10.2
Gbps
10.2
Gbps
- - -
4096x2160 (24/25/30)
10.2
Gbps
18
Gbps
18
Gbps
10.2
Gbps
10.2
Gbps
10.2
Gbps
-
-
-
3840x2160p (50/59.94/60)
18
Gbps
-
-
18
Gbps
18
Gbps
18
Gbps
10.2
Gbps
18
Gbps
18
Gbps
4096x2160 (50/59.94/60) 18
Gbps
- - 18
Gbps
18
Gbps
18
Gbps
10.2
Gbps
18
Gbps
18
Gbps
18 Gbps: 18 Gbps high-speed transmission cable, 10.2 Gbps: 10.2 Gbps transmission cable, -: N/A
Note:
If a cable joint (JJ) or the like is used and a cable is extended, video may be interrupted or not be output.
For analog audio and RS-232C, cables have to be processed.
【See: 6.3.2 Connecting audio cables】
【See: 6.3.3 Connecting RS-232C cable】

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6.3.2 Connecting audio cables
Connect the audio cable to the 5-pin terminal block, and then insert the 5-pin terminal block into the
appropriate port on the IMP’s rear panel.
The IMP supports both balanced and unbalanced analog signals.
AWG28 to AWG16 conductor gauge is recommended for optimal performance.
The recommended wire strip length is 0.28 in. (7 mm).
+
-
+
-
G
L
R
Lch +
Lch -
GND
Rch +
Rch -
Up to 0.28 in. (7 mm)
Balanced signal Unbalanced signal
-
+
-
+
G
L
R
Lch
GND
Rch
Up to 0.28 in. (7 mm)
[Fig. 6.2] Connecting audio cable to 5-pin terminal block connector
Notes:
・The output level of balance signal connection is twice as much as that of unbalanced signal connection.
・When input level of digital audio is 0 dBFS, output levels of analog audio unbalanced and balanced signals
are 10 dBu and 16 dBu, respectively.
6.3.3 Connecting RS-232C cable
Insert and secure the wires from the RS-232C cable into the supplied 3-pin terminal block, and then insert the
terminal block into the mating connector on the IMP.
AWG28 to AWG16 conductor gauge is recommended. The recommended wire strip length is 0.28 in. (7 mm).
Short RTS/CTS and DTR/DSR as needed.
Tx
Rx
GND
Up to 0.28" (7 mm)
Control device
Tx
Rx
GND
IMP
RxD
TxD
GND
Signal name
(Receive Data)
(Transmit Data)
(Ground)
[Fig. 6.3] Connecting RS-232C cable into 3-pin terminal block