72 | kvm-tec
kvm-tec | 73
5. TROUBlESHOOTInG & fIRST AID
9. SUPPORT
13
First
Aid
kvm-tec
smart connection
Video error
(stripes in the
picture)
USB is not
working
No Power
(No LED)
Check the
powerplug
Is the power supply
ok? Try another Unit.
Try reprogramming the
Unit by using a JTAG
programmer
Contact kvm-tec
support
Are the USB
Devices plugged in
correctly?
Is the USB cable on the
Local side plugged into
the PC?
Are the USB
Devices working direc
-
tly on the PC?
Check if local and
remote Unit have the
same firmware
Replace the USB cable
from PC to the Local
Extender
Check if the local or
the remote Unit is
causing the problem
by swaping first the
local and than the
remote Unit to ano-
ther Unit
Contact kvm-tec
support
Check if all
cables are plugged in
correctly
Check if the PC is
sending a Image by
plugging in a
monitor on the local out
of the local Unit
Check if the DDC is set
correctly (in menu under
point „O“)
Check if both Units
have the correct
firmware
No Video
Contact kvm-tec
support
Check if all
cables are plugged in
correctly
Check if the PC is
sending a Image by
plugging in a monitor
on the local out of the
local Unit
Check if local and remote
Unit have the correct
firmware
Check if the DDC is set
correctly (in the menu
under point „o“)
Check if the network
switch is setup cor
-
rectly and has enough
bandwidth
Contact kvm-tec
support
Check if other units have
the same
behaviour
kvm-tec Support
Phone: +43 2253 8
19
12 - 30
6.1 REQUIREMENTS FoR CAT5E/6/7 CAblES
A Cat5e/6/7 cable should meet the following requirements:
• The pins are connected 1:1. Caution: the cable pairs must be twisted to EIA/TIA- 568A (rare)
or EIA/TIA-568 B (common) pairs.
• Erroneous assignments cannot be found with a simple cable tester.
• The pins for the green pair of wires are not adjacent to one other.
• The cable must at the very least meet the CAT5 specifications and be suitable for Gigabit
transmission.
• The cable should meet one of the following standards: Class D ISO/IEC 11801:2002
or En 50173-1:2002. Schema EIA/TIA-568 B.
• Only use shielded installation cable with min. cross section of 24 AWG throughout
the length.
• The shield should be contiguous and connected to both ends. A shielded patch cable is
allowed for connection to the device.
Schema EIA/TIA-568 B
Pin
Color
1
Orange
/White
2
Orange
3
Green
/White
4
Blue
5
Blue
/White
6
Green
7
Brown
/White
8
Brown
6. REQUIREMEnTS fOR CABlES