7
4.3
RS-232 Cable Guide
To assist the user in fabricating the RS-232 cables used with external devices, the
following chart is provided showing the pin-outs used for the RS-232 DB-9 connector.
DB-9 Connector Pin Number
Connectivity
1
N/C
2
TxD/RxD
3
RxD/TxD
4
N/C
5
Ground
6
N/C
7
N/C
8
N/C
9
N/C
5.0
OPERATING THE UNIT
Once the connections have been made and power applied as explained above, there are
no operational adjustments required. It is recommended however that the power on
sequence be as follows: DVI destination device, DVI Over Cat.6 Transmitter/Receiver and
DVI source – in that order.
6.0
TROUBLESHOOTING
Other than faulty cables, a non-functional power supply source for the receiver or
transmitter, or attempting to use the product over too great a distance, there are seldom
problems with these products.
If there is no image present at the remote location, connect the display device directly to
the source to make certain that the problem is not in the display or signal source. If an
image is present under those circumstances, make certain the transmitter(s) and
receiver(s) are receiving power. Next make certain your Cat.5e/Cat.6 cable is defect free
and securely attached at both ends. Also make certain that the DVI connectors are
securely attached at both ends.
Note: It is strongly recommended that you use premium cables in order to achieve
maximum distance cable runs and the best performance possible.
After trying the above suggestions should the problem still persist, contact your dealer for
additional suggestions before contacting tvONE. Should the dealer’s technical personnel
be unable to assist you, contact tvONE via our support website:
http://tvone.crmdesk.com
. Create a technical support request on the site and our support
team will respond within a short period of time.
