Martin MiniMAC Maestro Manuel d'utilisateur télécharger pdf (Page 18)

18 Data link

Data link

A data link is required for DMX controller operation and for synchronized

stand-alone operation of multiple fixtures.

Cable and junctions

The Exterior 600 is supplied with a dual 3 meter (10 ft.) 24 AWG cable tail

with two IP65-rated locking 3-pin XLR connectors for data connection. The

male connector is for data input and the female connector is for data output.

The connectors are wired pin 1 to shield (ground), pin 2 to signal - (cold),

and pin 3 to signal + (hot).

Use RS-485 data cable designed for outdoor use to extend the link. RS-485

cable has low capacitance and a characteristic impedance of 85 to 150

Ohms. It is electrically shielded and has at least 1 twisted pair of conductors.

The minimum recommended wire size is 0.25 mm

(24 AWG) for runs up to

300 meters (1000 ft.) and 0.34 mm

(22 AWG) for runs up 500 meters (1640

ft.).

Warning! Connectors on earlier models are not weatherproof, and if these

connectors are exposed to water, moisture can be drawn up the

inside of the cables when temperature fluctuation during

operation causes expansion and contraction.

When installing the Exterior 600 outdoors, use one of the

following measures to ensure that the fixture is protected from

water entry caused by suction inside the data cable:

• Protect connectors on the data cable with weatherproof housings

or junction boxes, or

• Use waterproof outdoor cable and IP65-rated XLR connectors such

as the NC 3 MX-HD-B and NC 3 FX-HD-B produced by Neutrik that

are supplied with current Exterior 600s.

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Martin MiniMAC Maestro Manuel d'utilisateur Page 18