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Exterior 1200 Wash user manual
3.3 Installing a data link
Exterior 1200 Wash 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 5 on page 17 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.
• The last device on each chain must be terminated inside the luminaire using a 120 Ohm,
0.25 Watt resistor (available from your Martin Architectural supplier: P/N 04150308)
connected across the hot and cold data terminals.
• 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 8 DMX channels, for example, one DMX universe will
be required for every 64 luminaires (512 ÷ 8 = 64).
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 "
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
be disturbed or flexed when the rear cover plate is removed for service. All cable entry/exit
holes that are not used must be sealed with blanking plugs.
Summary of Contents for Exterior 1200 Wash
Page 1: ...user manual Exterior 1200 Wash ...
Page 3: ...3 Section 1 Safety ...
Page 9: ...Section 2 Introduction ...
Page 12: ...12 Exterior 1200 Wash user manual ...
Page 13: ...Introduction to the Exterior 1200 Wash 13 Section 3 Installation ...
Page 25: ...Installing a data link 25 Section 4 General ...
Page 30: ...30 Exterior 1200 Wash user manual ...
Page 31: ...General 31 Section 5 Settings and configuration ...
Page 39: ...Luminaire settings 39 Section 6 Stand alone operation ...
Page 49: ...Stand alone operation 49 Section 7 DMX control ...
Page 54: ...54 Exterior 1200 Wash user manual ...
Page 55: ...DMX controller operation 55 Section 8 Service and accessories ...
Page 70: ...70 Exterior 1200 Wash user manual ...
Page 71: ...Accessories 71 Section 9 Reference ...
Page 82: ...Notes ...
Page 83: ......