Daktronics Galaxy AF-3155, Руководство пользователя

Страница: 24 / 87

Radio
The Server radio connected to the computer, through a signal J-box, requires an 18-
gauge six-conductor cable (Daktronics part number W-1370). Four-conductors will
be used for the signal and two for power from the j-box. This wire needs to be in
conduit when exposed to outdoor conditions to the Server radio. The maximum
distance from the J-box to the Server radio is 1000 feet (305.8 meters).
The Client radio at the display comes with cable that is rated for outdoor use and
does not need to be in conduit. The cable should be secured to the structure so it does
not come loose from the display by weather or vandalism.
3.3 RJ Connector Cables
The conductor connector used in the network
is an industry standard, 6-pin RJ11or 8-pin
RJ45. This connector can be found on many
telephones and LANs.
Figure 15: 6-Conductor RJ11 Connector
and Cable
When the cable used in the network is a
standard flat six-conductor telephone cable
(standard flipped cable). Refer to
Figure 15
on the right. This cable has one end that is the
mirror image of the other end (i.e. the cable is
flipped). Refer to
Figure 16
on the following
page for a standard flipped cable.
Notice below in
Figure 16
that the color code on one connector must be made the
opposite on the other connector. When installing a network, it is not easy to
remember in which direction the previous end was oriented. One simple way to
avoid confusion is to standardize the color code, having one color for the connector
going into the output of a sign, and the opposite color for a connector going into the
input of a sign. This will help ensure correct cabling since cables are always installed
from the output jack of one sign to the input jack of the next sign.
Figure 16: Flipped Cable with RJ Connectors
Electrical Installation
3-4