Daktronics Galaxy AF-3050 Series, Руководство пользователя

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4. Mate-n-Lok
ä
Connectors:
Figure 11: Mate-
n-Loc Connector
The Mate-n-Lok connectors found in the displays are white and come in a variety
of sizes.
Figure 11 on the left illustrates a five-pin Mate-n-Lok connector. To
remove the plug form the jack, squeeze the plastic locking clasps on the side of
the plug and pull it from the jack.
Figure 12:
RJ11/ RJ45
Connector
5. Phone Jacks (RJ11/RJ45 Connectors):
RJ connectors, as seen on the right in Figure 12 , are similar to the
telephone connectors found in homes and are used on the ends of
RJ45 cable. In order to remove this plug from the jack, depress
the small clip on the underside of the plug.
Before replacing an RJ connector, spray it with Deoxit
™
contact
cleaner to remove any foreign matter that may cause signal
problems. In addition, apply a generous amount of Cailube
™
protector paste to the plug before inserting it into the jack. This
paste will protect both the plug and the jack from corrosion.
3.2 Control Cable Categories
Daktronics has identified four general categories for control cable. Most commonly used for
installation in conduit are shielded and unshielded cable.
Unshielded Cable
Unshielded cable consists of paired wires. These wires 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
· In plastic conduit away from interference signals
·
Inside buildings – if cable is not in conduit, keep away from interference signals
Shielded Cable
This cable has stranded wire that is paired and overall shielded, and may be subjected to
interference signals. It does not need to have a dedicated metallic conduit. The shield
must be
properly terminated at the controller. The cable can be subjected to some flexing after installation.
Cable is
not for direct burial. Do not use this in conduit with power conductors.
With interference signals, such as power conductors, intercom, etc., a two-foot separation is
typically required.
Direct Bur a Cab e i l l
I t
This application uses a paired, overall shielded, solid, direct burial cable. It is intended that this
cable type be typically used underground without conduit.
High Voltage nsula ion Cable
This cable uses an individually shielded pair of stranded wires. The insulation rating is 600V and
60 degrees Celsius. Cable routing may be with power conductors. This category is discouraged
when other routing is possible. The National Electric Code has specific requirements concerning
the voltage rating of cables with power conductors. All applicable electrical and building codes
must be followed.
Electrical Installation
3-2