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Exterior 1200 Image Projector user manual
3.3 Installing a data link
Exterior 1200 Image Projector luminaires must be connected via a serial data link for DMX
controller operation and for synchronized stand-alone operation of multiple luminaires.
The data link is used to transmit DMX commands or synchronization data.
See Figure 6 on page 18 for a schematic diagram of cable layout.
3 . 3 . 1 P l a n n i n g t h e d a t a l i n k
The following considerations must be taken into account when planning the data link:
• RS-485 data cable designed for exterior use is required. 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
2
(24 AWG) for runs up to 300 meters (1000 ft.) and 0.32 mm
2
(22 AWG) for
runs up 500 meters (1640 ft).
• The maximum permitted control data cable length before a control signal amplifier is
required is 500 meters (1640 ft.).
• Luminaires must be ‘daisy-chained’, i.e. the data cable must be connected in one single
chain of luminaires.
• Each daisy-chained link may connect a maximum of 32 fixtures.
• An optically isolated amplifier-splitter such as the Martin RS-485 Opto-Splitter (P/N
90758060) must be used to:
- extend a link beyond 500 meters (1640 ft.)
- extend the link to include a further maximum 32 luminaires, or
- branch the link into further single chains, each containing 32 luminaires. The Martin
Opto-Splitter allows a link to be branched into four new chains.
• Each chain on the link must be terminated by placing a resistance across the hot (+) and
cold (-) conductors of the data link in the last device on the chain. This is achieved by
setting jumpers as described on page 26.
• Long parallel runs of AC power and control data cables may cause interference on the
data link and must be avoided. Even if not required by law, separate conduits are
recommended for power and data cables.
• One DMX universe has 512 DMX control channels available. In an installation containing
multiple luminaires that each use 17 DMX channels like the Exterior 1200 Image
Projector, one DMX universe will be required for every 30 luminaires (512 ÷ 17 = 30 with
two channels unused).
3 . 3 . 2 B u i l d i n g t h e d a t a l i n k
Data cable must enter and exit the luminaire through M16 x 1.5 cable glands that accept
5.5 - 10 mm (0.22 - 0.39 in.) diameter cables. Two glands are supplied with the luminaire.
The glands must be replaced if the data cable external diameter is not within this range
(see "
8.4.2: Cable glands"
on page 61).
One of two cable entry points can be used: either on the cover plate at the rear of the
luminaire, or through the bottom of the connections/power compartment. Using the bottom
of the connections/power compartment is recommended, as cables installed here will not
Summary of Contents for Exterior 1200
Page 1: ...user manual Exterior 1200 Image Projector ...
Page 3: ...3 Section 1 Safety ...
Page 9: ...Section 2 Introduction ...
Page 12: ...12 Exterior 1200 Image Projector user manual ...
Page 13: ...Introduction to the Exterior 1200 Image Projector 13 Section 3 Installation ...
Page 27: ...Installing a data link 27 Section 4 General ...
Page 32: ...32 Exterior 1200 Image Projector user manual ...
Page 33: ...General 33 Section 5 Settings and configuration ...
Page 39: ...Luminaire settings 39 Section 6 Stand alone operation ...
Page 50: ...50 Exterior 1200 Image Projector user manual ...
Page 51: ...Stand alone playback 51 Section 7 DMX control ...
Page 57: ...DMX controller operation 57 Section 8 Service and accessories ...
Page 78: ...78 Exterior 1200 Image Projector user manual ...
Page 79: ...Accessories 79 Section 9 Reference ...
Page 90: ...Notes ...
Page 91: ......