ADB Micro-Scope II, Инструкция по эксплуатации

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Page 14
Rev. : 002
Micro-Scope II
Lighting Technologies
The following keys are active:
• LEFT
Select one of the pre-defined patterns
• RIGHT Select one of the pre-defined patterns
• UP Increment the Preset number
• DOWN Decrement the Preset number
• TOGGLE Execute the Fill
Fill patterns are selected from the following list:
•
ALL CHAN OFF Clear the Preset
• ALL CHAN HALF Set all channels to 50%
• ALL CHAN ON Set all channels to 100%
• ODD CHAN ON Set all odd channels (1,3,5..511) to 100%
• EVEN CHAN ON Set all even channels (2,4,6..512) to 100%
• RAMP UP Set incrementing ramp from channel 1 to 256 and 257 to 512
• RAMP DOWN Set decrementing ramp from channel 1 to 256 and 257 to 512
Testing Cables
Micro-Scope offers two methods of testing DMX512 cables.
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.
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.
DOUBLE END 1.. = 1..
.2. = .2. GOOD ..3 = ..3
The diagram below shows a DMX512 cable with pins 2 & 3 swapped.
DOUBLE END 1.. = 1..
.2. = ..3
..3 = .2.
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.
SINGLE END
283 SHORT/TERM