Doug Fleenor Design GIZMO Manual - Manual (Page 5)

Page 5 of 11
Receive
RECEIVE?
^¥ TO SCROLL
The RECEIVE mode is used to monitor the levels of the incoming DMX512 data. While the Gizmo is in
any of the receive modes, the levels are also re-transmitted out. The Gizmo is opto-isolated from input
to output and the data is re-timed. These features allow the user to accurately diagnose the source of
problems and to provide a known source of DMX512 data.
Press [ENTER] to select the RECEIVE mode. There are five receive modes. Use the [Ç] and [É] keys to
scroll through the selections and the [ENTER] key to select the displayed option.
Display All
This display shows channel numbers on the upper line of the display and the levels associated with the
channels just below them. The first channel to display, the “channel of interest”, is selected by using the
numeric keypad the or by using the [<] or [>] keys. The [>] key scrolls the display to the next displayed
channel. The [<] key scrolls the display to previous displayed channel. The [Ö ] and [Ñ ] keys will take
you to the previous or next active channel. If the levels are shown as three dashes (- - -), the Gizmo is not
receiving a DMX512 signal.
Display Non-zero
This display shows the current “channel of interest” and the next three channels above 0 (and their current
levels). This display will change dynamically as channels move above 0. The numeric keypad can be used
to jump to a particular channel to view. The [<] or [>] keys can be used to scroll the display if a large
number of non-zero channels are active.
Display Changing
This mode is used to find the first channel in the DMX512 data that is changing. It is useful for locating
a particular channel whose level is moving. The level of the channel is displayed as well. A useful
application of this mode is to locate the DMX channel which to a control console slider is assigned. This
can make diagnosing a patching problem much easier.
Flicker Finder
The FLICKER FINDER mode is used to test a DMX512 data line for unwanted changes in levels. When
FLICKER FINDER mode is selected, the current levels of the incoming DMX512 data are captured. If any
channel changes, that channel number is placed on the display. If a large number of channels change,
the numeric keypad can be used to select the desired channel. The [Ö ], [<], [>], and [Ñ ] keys can also
be used to scroll through the list of channels that have flickered.
If the DMX512 signal stops for any reason, the Gizmo will display a SIGNAL LOST message. This
message will remain even if the signal returns.
FLICKER CHANNELS
NO DMX512 SIGNAL
FLICKER CHANNELS
NONE
FLICKER CHANNELS
1 2 12
FLICKER CHANNELS
SIGNAL LOST
No DMX512 is present on the
input connector DMX512 is present on the
input connector. No flickering
channels found Channels 1, 2 and 12 flickered During the flicker test DMX512
signal was lost
These features allow the user to leave the Gizmo un-attended and connected to a system for a period of
time. Upon returning, any flickers or errors will be shown on the display.