Control cable requirements, Rs232, Rs422 – Daktronics AF-3065-34-RGB User Manual
Page 18: Modem, Fiber optic, Control cable requirements -2, Rs232 -2, Rs422 -2, Modem -2, Fiber optic -2

Electrical Installation
3-2
4. Mate-n-Lok
ä Connectors:
The Mate-n-Lok connectors found in the displays are white
and come in a variety of sizes. Figure 14 illustrates a four-
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.
5. Phone Jacks (RJ11 Connectors):
RJ connectors, as seen in Figure 15, are similar to the
telephone connectors found in homes and are used on the
ends of flat RJ11 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 Cal-Lube protector paste to the plug before inserting it into the jack. This paste
will protect both the plug and the jack from corrosion.
Figure 14: Mate-
n-Loc Connector
Figure 15: RJ11
Connector
3.2 Control Cable Requirements
RS232
This cable is a 2-conductor shielded cable used to transmit an RS232 signal (Daktronics part
number W-1117). This shielded cable should not be subjected to mechanical flexing after
installation. This cable is not for direct burial and should be routed in a dedicated, grounded
metallic conduit at the base of the sign structure. This cable has a maximum length of 25 feet.
RS422
This cable is a 6-conductor shielded cable used to transmit an RS422 signal (Daktronics part
number W-1210). This shielded cable consists of unpaired wires. They 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
·
Inside buildings
- if cable is not in conduit, keep away from interference signals.
L
With interference signals (such as power conductors, intercom, etc.) typically a two foot
separation is required. The maximum length of an RS422 signal cable is 4,000 feet (1.22 km).
Modem
The modem option will use standard telephone cable routed through conduit. The local telephone
company will need to assist in this installation.
Ask the telephone company which colors are used by the TIP, and the RING for signal hook up.
Note: The telephone lines must be dedicated lines and not run through a switch
board/communications system.
Fiber Optic
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
routed in conduit but it should not be subjected to mechanical flexing. The maximum length of a
fiber optic cable is 2,000 feet (611.6 meters).