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Since
the EIA-485 port transmitted the signals in different
mode, the port IC of all the connected equipment are
directly connected in the electric circuit. In the
engineering application, the electric surge impact
resulting from the various factions will destroy the port
IC of all the equipment. This makes the whole lighting
control system to a paralysis state. How can make the
lighting control system work safely and reliability?
The standard of DMX512 restricts the
length of the data transmitting cable to ensure the
decrease of the digital signals in the suitable range. In
the engineering application, the length of the data
transmitting cable sometimes has to be longer than the
allowed length. How can we accord the DMX512 standard and
satisfy the engineering application?
EIA-485 prescribes that the number of the
equipment connected in a data bus can’t exceed 32. In
the engineering application, specially in the large the
engineering application, the number of the equipment
connected in a data bus exceed 32 largely. How can we
accord the DMX512 standard and satisfy the engineering
application?
In
the engineering application, CODE SDA4 Distributor can
solve the above problems.
CODE
SDA 4 has 3 main functions: relaying, tidying and
amplifying the signals function, light isolated function,
and 4 channel distributing function.
There
are 5 independent light isolated port (1 input, 4 output)
in the system. The trouble locale can be isolated, and so
the whole lighting control net is prevented from the
paralysis state.
Since
the signals are relayed, tidied and amplified, the length
of the cable can be prolonged to a double length in
theory. 4 isolated ports are equivalent to prolonging the
length of the cable to 4 times. Another 1 DMX direct port
is used to connect other equipment (not isolated ports).
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