SC&T VKM01 User manual

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VGA Keyboard Mouse
CAT5 Extender
ITEM NO.: VKM01
The VGA, Keyboard Mouse CAT5 Extender allows VGA video signals and keyboard mouse to
be transmitted u to 100 meters via 2 x CAT5 STP or UTP cable. Used in airs, the Extender
is used in home or commercial a lications as a smart, fast and cost-effective, eliminates
costly and bulky VGA, keyboard mouse cable. A lications for classroom rojector systems,
boardroom systems, collaborative PC systems C-training systems, and tradeshows PC demo
systems and medical information systems.
Features:
VKM01 Keyboard Mouse CAT5 Extender – S/2 Interface
Extend VGA and Keyboard mouse over 2 CAT5 UTP cable to instead of VGA cable and
keyboard mouse cable.
Including local and remote units.
U to 100 meters via standard 4 airs CAT5 STP or UTP cable instead of VGA cable.
Transmitter built in virtual DDC to avoid improperly setting at resolution and frequency.
Transmitter built in sync mode selection for signal stability.
Receiver built in sync filter level adjustment for signal stability.
Su orts u to 1280x1024 ixels.
Passive device, not su ort VGA DDC rotocol.
Perfect for classrooms, lecture halls, tradeshows, video information dis lays…etc.
anel View:
VKM01R (Remote unit)
VKM01T (Local unit)
Installation View:
VKM01T VKM01R

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Recommend Cable:
1. CAT5e UTP/STP or Cat6 UTP cable.
2. There are some certain models or brands of monitors with very high demand at
sync-sensitive, recommend use STP (shielding twisted air) cable to instead of UTP
(unshielded twisted air) cable.
RJ45 in Configuration: TIA/EIA 568B Wiring standard
Video Link Cable
1. Orange-white Video Red +
2. Orange Video Red -
3. Green-white H-Sync
4. Blue Video Green +
5. Blue-white Video Green -
6. Green V-Sync
7. Brown-white Video Blue +
8. Brown Video Blue –
Data Link Cable
1. Orange-white Keyboard Clock
2. Orange Keyboard Data
3. Green-white ower 1
4. Blue Ground 1
5. Blue-white ower 2
6. Green Ground 2
7. Brown-white Mouse Clock
8. Brown Mouse Data
Switch Setting:
VKM01T Sync Mode Select
←
←←
←
Mode 1
→
→→
→
Mode 2
1. For new type monitors, such like over 17 LCD Monitor, recommends setting at mode 1
for the best stability. If the picture not normal, then switch to Mode 2.
2. For old type monitors, such like CRT or under 17 LCD Monitor, recommend setting at
mode 2. If the picture still not normal after adjust the dip switch of VKM01R. Then
please use STP (shielding twisted pair) cable.
DIP Switch Setting:
VKM01R Sync Filter Level
ＯＮ
ＯＮＯＮ
ＯＮ
↓
↓↓
↓↓
↓↓
↓↓
↓↓
↓↓
↓↓
↓↓
↓↓
↓
Level 0 (Min)
↑
↑↑
↑↓↓↓↓
Level 1
↓↑
↑↑
↑↓↓↓
Level 2
↓↓↑
↑↑
↑↓↓
Level 3
↓↓↓↑
↑↑
↑↓
Level 4
↓↓↓↓↑
↑↑
↑
Level 5 (Max)
１２３４５
１２３４５１２３４５
１２３４５
Sync Filter is designed for using UTP CAT5 cabling.
Sync Filter level adjustment is to add the sync stability, but not adjust picture quality or
eliminate skew.
Since different brand monitor have different setting, so there is no recommended setting.
Please adjust the level based on picture stability. If no picture display or picture not stable,
then please use STP cable.
Caution:
1. The wiring must be away from electro magnetic equipment, i.e. microwave, wireless, hi voltage
cable…etc.
2. The maximum distances supported by the VGA Extender are dependent on the type of twisted pair
cable and image resolution of the PC’s VGA interface. Make sure that the maximum
recommended operational distances have not been exceeded.

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3. All wiring is “straight-through” twisted pair cable, not being used for other LAN or telephone
equipment.
4. Do not connect the VGA Extender to a telecommunication outlet wired to unrelated equipment.
5. If the keyboard mouse work abnormal, lease reverse the cable of keyboard mouse.
Troubleshooting at picture problem:
1. No picture display:
Check Link cable.
Check DIP switch setting.
Check V A cable connect.
Change the resolution or frequency.
Change Link cable for STP cable.
2. Picture not stable or disappear intermittence or no picture display:
Check DIP switch setting.
Change the resolution or frequency.
Wiring away from electro magnetic equipments.
Change Link cable for STP cable.
3. Picture tilt:
Check DIP switch setting.
Change the resolution or frequency.
Change Link cable for STP cable.
Application Tips to use CAT5 ST cable:
Following is the correct cable connection when use ST cable:
1. STP (shielding twisted air) Cable.
2. STP (shielding) RJ45 connector with STP cable connection.
Specification:
ITEM
NO.
VKM01(VKM01T)
VKM01(VKM01R)
Input Signals Video : 1.1V P-P
Horizon & Vertical Sync: TTL standard. 300kHz max. bandwidth
Insertion Loss Less than 3dB per pair over the frequency range
Video Signal Return Loss -15dB max from DC to 60Mhz
Impedance
75 ohms (DB15), 100 ohms (RJ45)
Setting Switch 2 Stage Slide Switch 5 Stage Dip Switch
Transmission Distance Up to 100 meters depend on image resolution
Input / Output DB15 x 1, PS/2 x 2
Link Connection RJ45 x 2
Link Cable CAT5 / CAT5e / CAT6 / STP or UTP Cable
Temperature Operation: 0 to 55 C, Storage: -20 TO 85 c, Humidity: up to 95%
Dimensions mm 108 x 72.2 x 27
Weight g 115
Rev. B