
XTBA F451 DMX Fire FX unit Page 5 of 6
Product #10502 - March 2015 © XTBA 1986 – 2015
at 50% will be 25% etc. This allows the overall level of the effect to be ‘faded’ up
and down.
Hard Limit
The maximum output of the random level is set using the maximum level. Any
random level generated above the maximum level will be ignored and the maximum
level transmitted. This gives a slower and less variable output.
If the unit is set to merge incoming data will be merged HTP in either mode.
DMX TEST FUNCTIONS
When in the DMX display pressing the UP button will enter the parameters mode:
B R K
M A B
S C D
C H N
S Y S
9 6
1 6
0 0 0
5 1 2
O K
In Parameters Mode the display is changed to display DMX timings and values.
Note: When in parameter mode the output of the F451 is turned off so the unit will
stop transmitting.
Pressing DMX will take you back to the channel display menu or pressing Function
will take you to the main menu loop.
The top line of the display shows what is being measured the figure below is the
value, as follows:
BRK
DMX Break Time in micro seconds (us)
MAB
Mark after break time in micro seconds (us)
SCD
Start code in decimal
DIM
Number of channels
SYS
This will display OK all of the above are within the limits of DMX. If
the View receives data that is outside the DMX512 specification the
display will change to ERR.
When the SYS parameter shows ERR by pressing the down key ERR will be
displayed below the parameter with the error. If an error is detected when in the
parameters display the blue data led will fast flash.
The parameter screen allows incoming data to be checked in the event of a DMX
problem.
RECEIVING LEVELS
If the random output is set to OFF and the unit set for merge the F451 can be used
as a DMX level receiver to find out if incoming DMX channels are working.