System information

Artistic Licence Engineering Ltd. Micro-Scope 3a Manual
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TESTING
CABLES
Micro-Scope offers three methods of testing DMX512 cables and
DMX512 networks.
The DOUBLE ENDED TEST is used when both ends of the cable
are available. Micro-Scope can test for short circuits and open
circuits on any of the three active pins of the DMX512 cable.
The SINGLE ENDED TEST is used when only the console cable end
is accessible. Micro-Scope can test for a short circuit between the
two signal pins.
The NETWORK TEST is used to transmit real test data over an
installed network.
DOUBLE ENDED
CABLE TEST
The DOUBLE ENDED TEST display shows the connectivity of each
of the three active pins of the DMX512 or MIDI cable. An OPEN
CIRCUIT is shown by a
period, and a SHORT
CIRCUIT is shown by the pin
number. The diagram below shows a correct DMX512 cable.
The diagram below shows a
DMX512 cable with pins 2 &
3 swapped.
SINGLE ENDED
CABLE TEST
The SINGLE ENDED TEST display shows the short circuit status
of pins 2 and 3 of the DMX512 output connector. The display will
show the following when there is a connection between pins 2 & 3:
This test can be used to test
for short circuit in the cable
or to confirm that the cable
is properly terminated.