Linkskey LKV-E235 - Manual (Page 2)

Q uick Installation G uide LK V -E235 C A T5 U S B /P S 2 K V M Extender S et w / B uilt-in K V M S w itching function – 150M
Rev. 1.1 Copyright© All rights reserved 2
Hotkey preceding sequence configuration: The hotkey preceding
sequence is default to CAPS + CAPS. For users who want to use a
preceding sequence other than two consecutive CAPS, they can go to the
OSD Menu and choose any one of the 7 alternatives –
Left Control,
Right control, SCROLL, CAPS, F12 or NUM.
Each keystroke within a hotkey sequence should be pressed within 2
seconds. Otherwise, the hotkey sequence will not be validated.
To navigate the OSD Menu, just use the following keys
Esc: Exit,
  Left/Right cursor: change value in the menu option
  Up/Down Cursor: Navigate.
F10: Logout the OSD Menu (However, if the password
protection is not enabled, the Logout feature will not be
available)
These keys are listed explicitly on the OSD setting page for your
ready reference.
OSD Main page
This is the OSD Main Menu and it is the first page you will see
when you hit the keyboard hotkey - CAPS + CAPS + Space - to
evoke the OSD Menu.
Main Menu
Auto Logout: [0 ~ 60]
Disable / Enable the Logout timeout (0~60min, 0 = Disable).
The Auto logout time can be configured from 0 (Disable), with an
increment of 5, right up to 60 Min. If the password protection is
not enabled, the Auto logout will not be put into function.
OSD Timeout: [0~60]
Configure the OSD timeout value (0~60 seconds, 0 = Disable).
Hotkey: [ CAPS, L_Ctrl, R_Ctrl, SCROLL, F12 or NUM ]
The hotkey preceding sequence is by default, CAPS + CAPS, and
yet can be freely changed to other alternatives such as
L_Ctrl,
R_Ctrl, SCROLL, F12 or NUM. Hotkey commands is also
available for changing the preceding hotkey sequence.
Password:
Disable/Enable the password protection feature. After you logout
or the timeout of Auto logout, you will be prompted for correct
password before you can access the console again.
Video Settings:
Here you can enter a submenu to configure the video settings
such as Brightness, Sharpness and skew compensation for
Phase Red and Phase Green.
Brightness: [0 ~ 63]
Adjust the Brightness of the Display on Receiver Console.
Sharpness: [0 ~ 63]
Adjust the Sharpness of the Display on Receiver Console.
Phase Red:
Specify the time delay for red color.
Phase Green:
Specify the time delay for green color.
F2 :
To save the settings.
Video Settings Submenu
The blue component color is adjusted automatically as in proportion
to the red and green. Users have no need to adjust themselves.
In order to achieve optimized video output on the console that may be
150 Meters away from the computer, users could adjust these various
parameters conscientiously to achieve an optimized video output on the
console monitor. For a general guideline of how to adjust your video
display parameters on the remote console, please refer to next section,
Optimize the Video Display on the Remote Console.
Load Monitor DDC
Copy and duplicate the DDC data of the monitor on the Receiver
Console to both the Transmitter and Receiver Units.
Load Default DDC
Copy and duplicate the factory default DDC data to both the
Transmitter and Receiver Units.
Load Default Setting
Load factory default settings.
Firmware upgrade
Enter the firmware upgrade mode. Before one can go forth with
the upgrade process through a utility running on a connected host
PC, one has to make the unit enter into upgrade mode.
Change the Hotkey Preceding Sequence
(Only available on Receiver Unit)
To change the hotkey preceding sequence (or trigger sequence)
of your hotkeys, please hit the following key commands:
Hotkey sequence = [CAPS] * + [CAPS] * + H + (y)*
(y) = L_Ctrl, R_Ctrl, SCROLL, CAPS, F12 or NUM
Note that the hotkey preceding sequence setting on the Receiver Console
will not affect the hotkey preceding sequence on the Transmitter Console,
which will always allows CAPS + CAPS as preceding hotkey. In addition to
using the hotkey command, one can also use the OSD menu to change the
hotkey preceding sequence. Please refer to the previous section.
Remote Console ON/OFF and View Only
(Hotkey Available only on Transmitter
Console)
While you are at the Transmitter Console, you can turn Remote
Console On/Off or make it View Only by the following:
Hotkey sequence = CAPS + CAPS + M + (y)*
* (y) = 1, 2, 3
(y) = 1, Full access (keyboard, mouse and video)
(y) = 2, Access Denied (No keyboard or mouse control, blank
screen)
(y) = 3, View Only (only video)
When the Remote Console is turned OFF, the video screen will
become blank and keyboard/mouse locked up. Thus, this hotkey
provide a security measure for block/grant access on remote
console. When Remote Console is in view Only Mode, user
can only see the screen without access to keyboard and
mouse control.
Optimize the Video Display on the Remote
Console
To achieve an optimized display output on the Remote Console
(i.e. the Receiver) will require you to conscientiously adjust the
various video parameters such as Brightness and Sharpness in
an optimized combination that could most satisfy your visual
requirements.
Please follow the procedure below to achieve an
optimized display output on your Remote Console
screen :
Step 1. Choose a video display contents that you think
will be suitable to serve as a reference for the visual
adjustment. You can choose a document that integrates
texts and graphics so that you can use it as a reference to
achieve optimized video display for either textual or graphic
contents on the CAT5 KVM Extender output. One
alternative can be the visual testing program provided by
the display card vendor.
Step 2. Adjust the Brightness and Sharpness : First,
you call forth the OSD menu by hitting the hotkey, CAPS +
CAPS + Space, then go to the Video Setting submenu.
Next, adjust your video display for an optimized output. The
Brightness adjustment can help you to tune the picture
luminance as a whole to lighter or darker output that best
suits your visual perception. The Sharpness is the edge
contrast that you will perceive.
Adjust the Brightness: The brighter the picture, the
more luminance will be added to the picture as a whole.
Adjust the Sharpness: To add more sharpness to the
picture is to help you distinguish more details out of the
edges of a line or shape.
When you have adjusted the Brightness and Sharpness to
achieve a passable situation, you can temporarily leave
them there and try to work on the Red Delay and Green
Delay adjustment so that you can see a cleaner picture for
further fine-tuning …
Step 3. Adjust the Red Delay and Green Delay : The
Red, Green and Blue are the primary colors that constitute
our color perception scheme on the monitor. The CAT5
KVM Extender uses different wires in the UTP cable to
carry the signals of different primary colors. The different
wires in the twisted-paired cable will be running in ever
longer different lengths with longer cables, if the difference
comes in significantly large, you will need to adjust the
delay time for certain color signals on certain wires to make
the three colors comes into the display in good sync. The
CAT5 KVM Extender need you to manually adjust only the
Red delay and the Green delay, whereas the Blue delay is
automatically tuned and optimized by the machine
according to other concurrent video parameters. By the
way, the values of the Red delay and the Green delay will
be tied within a preset difference range. That means,
whenever you try to adjust either the value of the Red
delay or the Green delay to be out of the allowable
difference range as compared to the value of the other
color delay, the other color delay will be obliged to come
closer to be within the difference range to prevent the video
from being perceptibly disoriented. With the Blue delay
automatically tuned and the Red and Green delays tied
within a comfortable difference range, the CAT5 KVM
Extender does facilitate an easier and more intelligent way
for video optimization.
No Video Troubleshooting
Q. When I connect a monitor to the CAT5 KVM
Extender, it cannot show forth the video. What can I do
then to troubleshoot?
A. If you encounter no video or aberrant display problem
with a specific monitor, you should try to copy the EDID
information from the smaller monitor among the local
monitor and the remote monitor to see if this can eliminate
the display problem. Any further inquiry, please contact
your local dealer for support.
Switch Between Local/Remote Computer
(Hotkey Available only on Receiver
Console)
On the Receiver Console, one can switch between the 1 st
computer (connected across 150M/500ft via CAT5 cable) and the
2
nd computer (connected directly to the Receiver) by the following
hotkey command:
Hotkey sequence = [CAPS] * + [CAPS] * + (y)*
* (y) =  , 
(y) =  , Local (2 nd computer)
(y) =  , Remote (1 st computer)
FCC / CE Statements
FCC Statement : This equipment has been tested and found to comply with the
regulations 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
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 this Quick Installation Guide, 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/her own expense.
CE Statement : This is a Class B product in a domestic environment, this product
may cause radio interference, in which case the user may be required to take
adequate measures.
RoHS Compliant
Technical Support
E-mail:
[email protected]
Website: www.linkskey.com