Control cable requirements, Rs/232, Rs/422 – Daktronics AF-3020-7.6-R,A User Manual

Page 19: Modem, Fiber optic, Control cable requirements -5, Rs/232 -5, Rs/422 -5, Modem -5, Fiber optic -5

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3.4

Control Cable Requirements

RS/232

This cable is a 2-conductor shielded cable used to transmit an RS/232 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 display structure. This cable has a maximum length of 25 feet.

RS/422

This cable is a 6-conductor shielded cable used to transmit an RS/422 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.


With interference signals (such as power conductors, intercom, etc.) typically a two-foot
separation is required.

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 Opt c

i

This cable is a 4-fiber cable (Daktronics part number W-1376). Two fibers are used, leaving the
other two as spares. The cable may be either direct burial or routed in conduit but it should not be
subjected to mechanical flexing.

Electrical Installation

3-5

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