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DP-HP-MNTR-SRC
DisplayPort 1.4 Hotplug Maintainer, Connects to
Source/Computer
The DP-HP-MNTR-SRC manages communication between a DisplayPort source device (e.g., compute r) and sin k device
(e.g., monitor) with the purpose of maintaining the screen settings in the event of the sink device being disconnected.
One application of this device is to resolve screen resetting issues when employing a DisplayPort KVM to actively switch
between two sources and a single sink. By installing the DP-HP-MNTR-SRC in series with the source and KVM, the
source will see a constantly connected sink and will therefore maintain the screen setting when the KVM user sele cts the
other channel.
Features:
Emulates a DisplayPort display (sink device) by providing Hot Plug Detect to the DisplayPort source device.
Designed for use with KVM/video switches.
o When the input channel is deselected, the host computer connected to that input channel via the
DisplayPort Hotplug Maintainer will recognize the monitor as connected.
o Eliminates the need to reconfigure monitor settings – keeps screen settings while switching to
another computer and then back.
Supports all source and display resolutions, including Ultra-HD 8K (7680x4320) @30Hz, 4Kx2K (4096x2160
and 3840x2160) @60Hz, 2560x1600 (WQXGA), 2560x1440p (WQHD), and HDTV 1080p @120Hz.
The Hotplug Maintainer is completely transparent.
DisplayPort features supported:
o DisplayPort v1.4
Backwards compatible with DisplayPort 1.2/1.1
o Multi-Stream Transport (MST)
o 10-bit Color / 30-bit Deep Color
o RGB, YCC 4:4:4, YCC 4:2:2
o LPCM
o HDR
o High-bandwidth HBR3
o Bandwidth up to 8.1Gbps per channel (32.4Gbps total)
Compact design for easy installation and operation.
No power supply- powered by video source.
TAA Compliant
One 1-foot DisplayPort male-to-female cable (NTI# DP-1-MF) included
Installation
Connect to Your Application
The DP-HP-MNTR-SRC is outfitted with a full-size DisplayPort plug and receptacle. The plug is to be inse rted into the
video source port, and the cable connecting to the downstream KVM Switch should be plugged into the receptacle. The
DP-HP-MNTR-SRC is powered by the DisplayPort source.
The recommended installation procedure is as follows:
1. Power down all equipment
2. Plug the DP-1-MF into the source port. (We recommend using this to ensure a tight connection to the source.)
3. Connect all cabling
4. Power up the monitor
5. If there is any, power up mid-stream equipment (e.g., KVM Switch)
6. Power up source. If there is a KVM switch, ensure that the KVM is set to the source that is being powered
7. Once the source is fully booted and an image is displayed, the DP-HP-MNTR-SRC is functioning. The KVM
o We recommend using this to ensure a tight connection to the source.
Plug the DP-HP-MNTR-SRC into the female port of the DP-1-MF.
Switch (if any) can be switched and other sources can be powered.
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(
)
Included
For an improved connection between the video source and the DP-HP-MNTR-SRC, connect the DP-1-MF
between the source and the DP-HP-MNTR-SRC (above).
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Specifications
Video Format
Max. Resolution
Color Depth
Support pass-through
Support headless (no
monitor actually attached)
HDCP Support
Audio Format
Power Supply
Operating Temperature
Storage Temperature
Operating and Storage
Relative Humidity
Tip: When a computer turns OFF the display or goes to sleep, it will stop providing power on the video output
ports and the DP-HP-MNTR-SRC will power OFF. As a result, windows may be resized and moved after the PC
"wakes up" and starts to display again. To avoid the issue, it is recommended to disable the sleep mode and set
the computer to not turn OFF the display. If you are running Windows, related settings are found in "Power
Options".
DP 1.4, 1.2, 1.1
7680x4320 @30Hz
RGB/YCC444/YCC422: 16-bit
Yes
Yes
HDCP 1.4 and HDCP 2.2
LPCM
By video source
32 to 104°F (0 to 40°C)
-22 to 140°F (-30 to 60°C)
5 to 90% non-condensing RH
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Frequently Asked Questions
1. Would the computer see ANY change when monitor is power cycled? It is important that the monitor be sensed continuously
without even a brief disconnect/reconnect when the monitor is powered OFF/ON, similar to how VGA/DVI (and most HDMI)
monitors worked.
The computer will NOT see ANY change when the monitor is power-cycled or when the monitor is disconnected.
2.Would the computer see ANY change if the monitor is unplugged/replugged downstream of the adap ter?
The computer will NOT see ANY change if the monitor is unplugged/replugged as long as the adapter is still connected
to the computer.
3. Would the computer see the last-connected monitor if the computer is cold-booted with the monitor OFF? Does the adapter have
non-volatile memory to store the monitor info?
The computer will NOT see the last-connected monitor if the computer is cold-booted with the monitor OFF. The adapter
does not have non-volatile memory.
4. Does the adapter introduce any latency?
The adapter does not introduce latency.
5. Does the adapter support the following Ultrawide resolutions: 5120x1440 @ 144Hz and 3840x1600 @ 75Hz?
The adapter supports up to 8k@30hz video which has 32.40 Gbit/s bandwid th. 5120x1440 @ 144Hz has similar bandwidth
and 3840x1600 @ 75Hz has a much smaller bandwidth. In theory, both of these res olutions should work but we did not
test them.
6. Does the adapter support Variable refresh rate and Audio?
Yes. It does support Variable refresh rate and Audio.
7. Assuming the adapter contains active circuitry; does it draw power from the host computer or the monitor?
The adapter is powered by the computer and the adapter's power consumption is minimal.
8. Will the maintainer correctly report display changes to the computer if the monitor is changed downstream of the adapter, either
physically by unplugging and plugging in a different monitor, or by changing settings on the monitor (like Picture-by-picture) that
causes the monitor to "disconnect" and reconnect as a monitor with different max resolution/refresh rate, etc.?
For example, turning on the 50/50 PBP mode on a 5120x1440 ultrawide display causes the monitor to "disconnect", then reconnect,
identifying itself as a 2560x1440 display, and the adapter would then need to update the computer with this information so it can
adjust the video output accordingly.
No. When the maintainer is connected to the computer, the computer will read monitor information from the maintainer
and generate video signals correspondingly. When you change the monitor or change display mode on the monitor, the
information on the adapter will not change unless you disconnect and reconnect the adapter to the computer. In your
example, with the adapter always connected to the computer, when changing the display mode from 5120x1440 to
2560x1440, the monitor will probably show something like "signal out of ran ge"
NTI MAN392 REV 9/13/23
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