User`s guide

20 Rear Panel
Discrete Control Connector
Be sure to configure
the Digital Video
Machine 2 for
contact closures or
voltage inputs
before connecting
any wires to it.
This Female DB-37 connector provides all of the signals needed to control the
Digital Video Machine 2 using discrete inputs. The first fifteen files of the Digital
Video Machine 2 may be played, looped, paused or stopped using the eight
parallel inputs located on this connector. These inputs may be either contact
closures such as momentary buttons, or voltage inputs from a controller such as a
PLC. The first position of the “ Option” DIP switch selects between the two input
types. The “ Off” position will allow the DVM2 to accept voltage inputs; the
“ On” position configures the DVM2 for Contact Closures.
The pinout of the Control Connector is shown below:
Function
Voltage
Input
Pin No’s.
Contact
Closure
Pin No’s.
Description
Resume 11(+),1(-) 1,20 Used when processing a Playlist.
Resumes playing if paused or stilled,
skips to next entry if playing and
“ Interruptible” mode is selected.
Still 12(+),2(-) 2,21 Stills the clip currently playing. Play
resumes by activating Resume.
Stop 13(+),3(-) 3,22 Stops the file currently playing. If the
file is a Playlist, it is aborted.
Loop 14(+),4(-) 4,23 Causes the selected file to loop
indefinitely from beginning to end. If
the file is a Playlist, all clips will be
played and then the file will loop.
File Select 1 15(+),5(-) 5,24 Binary-encoded input plays files 1-15.
File Select 2 16(+),6(-) 6,25 Binary-encoded input plays files 1-15.
File Select 4 17(+),7(-) 7,26 Binary-encoded input plays files 1-15.
File Select 8 18(+),8(-) 8,27 Binary-encoded input plays files 1-15.
The binary file select inputs are used to play the first 15 files. The inputs are
change sensitive; that is, when a change is detected, the new file will be played.
It is therefore important that the four bits change at about the same time.
If the same file number is selected repeatedly it will normally interrupt itself and
begin again. When processing a Playlist, if the Playlist is selected repeatedly it
advances from entry to entry within the list – unless the “Uninterruptible” flag
has been set (see the Playlist section for more information).
Note: The RS-232 Transmit line is also located on pin 36 of the DB37
connector. This Receive line is located on pin 37.