Daktronics Galaxy AF-3190 Series, Руководство пользователя

Страница: 26 / 97

Radio
The server radio connected to the J-box requires an 18-gauge, six-conductor shielded
cable (Daktronics part number W-1370). Four-conductors will be used for the signal
and two for power. These wires need to be in conduit when exposed to outdoor
conditions to the server radio. The maximum distance from the RS422 J-box to the
server radio is 1000 feet (approximately 330 meters).
The client radio at the display comes with a 25 foot quick connect cable that is rated
for outdoor use and does not need to be in conduit. Any excess cable should be
secured to protect it from weather and vandalism.
Ethernet
Note: The use of a quick connect inter-connect cable or separately wired cable is not
allowed between two of more displays if the input to the first display is Ethernet.
Fiber Ethernet
This cable is a 4-fiber cable (Daktronics part number W-1376). Two fibers are used
for display communications and the other two are saved for spares. The cable may be
either direct burial or in conduit, but it should
not be subjected to mechanical
flexing. The maximum length of the fiber optic cable from one media converter
connected to the network and the second media converter in the display is 1.2 miles
(approximately 2000 meters).
Ethernet
This cable is an 8-conductor network cable (Daktronics part number W-1467 Cat-5,
or W-1384 Cat-5E). The cable should not be subjected to mechanical flexing after
installation. This cable is not for direct burial and should have one of the following
routings:
•
In dedicated metallic conduit, separate from the power.
•
Inside buildings-if cable is not in conduit, keep away from interface signals
With interference signal, such as power conductors, intercom, etc., typically a two-
foot separation is required. The maximum length of an Ethernet signal cable is 330
feet (approximately 100 meters) from the network hub or switch to the surge board
in the display.
3.3 RJ Connector Cables
RJ connectors are of two basic types. They consist
of the RJ11 connector that uses a six-conductor
cable, and the RJ45 that uses an 8-conductor
cable. This type of connector can be found on
many telephones and LANs.
Both the RJ11 and RJ45 cables used inside the
display are pinned as straight through cables.
Exterior cables used for a network are often
Figure 16: 6-Conductor RJ11 Connector and Cable
Electrical Installation
3-4