Videotec SM328B - Manual (Page 18)

3.4 Setup Parameters
3.4.1 Video system
The matrix is designed for use in PAL/NTSC systems, with interlaced and non-interlaced video outputs. If
there is an obvious shift in the script caused by monitors for which it is impossible to adjust V-HOLD, it is
possible to centre the screen.
3.4.2 System configurations
(Is the system using several simultaneously controlled matrixes?)
The matrix can be used in different system configurations:
• single matrix
• group of parallel matrixes
• group of master/slave matrixes
This manual only considers the matrix in its single configuration, where a maximum of 32 video inputs are
connected, displayed on a maximum of 8 monitors and controlled by a maximum of 8 keyboards.
Since erroneous choice of system configuration will lead to a substantial change in matrix operation, we
advise leaving the parameter Video and System/Configuration set to SINGLE. When configuring
Composite Installations see the procedure described in the section 7 Appendix 2: composite installations,
page 34
3.4.3 Decoding the receivers
(Does any telemetry receiver controlled by the matrix have a different ID number from the corresponding video
input?)
Usually telemetry receiver number 1 is connected to matrix IN 1, receiver number 2 to IN 2, etc. Under
particular circumstances (which, however, we advise avoiding in order to simplify both system setup and
operation) it is possible to associate an video input with a different receiver number.
If telemetry is operated through the matrix it is therefore necessary to give a complete association between
the video input number and the corresponding telemetry receiver so as to be able to give the correct
receiver address after choosing a camera.
The decoding operation can be done either from the keyboard (where the keyboard supplies the correct
receiver number directly as soon as a camera is chosen) or from the matrix (where it is the matrix that
decodes the camera number so as to identify the associated receiver).
If the number of each video input and the respective receiver are the same (or if there is no receiver)
decoding is not necessary.
3.4.4 External triggers
See sections:
• 3.4.14.3 External Alarm Reset Trigger, page 22, for a description of the reset alarms trigger
• 4.1.1 Trigger signal, page 25, for a description of VCR operation
3.4.5 Aux auxiliary lines
(Do you want to control devices such as telemetry receivers and mux via the matrix?)
The matrix has two auxiliary lines which can be used to control a number of devices (telemetry receivers,
multiplexers, etc.)
The Aux A line is not available when the matrix is used in groups of parallel or master/slave matrixes.
For each line it is necessary to determine the protocol to be used and a suitable baud rate.
• 3. Setup Page 16/65 MNVCSM328A_0438