40
DIS-1/S and DIS-1/L
Dallmeier electronic GmbH & Co.KG
7.3
SeMSy Configuration
The acronym SeMSy stands for Session Management System and refers
to the connection of a management system to one or more DIS units.
The SeMSy configuration (see Diagram. 7-24) dialog box deals with
rights allocation for access from a higher ranking computer (management
system).
With the Encoder for SeMSy available rights allocation, you can retrieve
coded image data from the respective DIS and transfer these to another
DIS via a management system.
With the Decoder for SeMSy available rights allocation, you can read
coded image data from another DIS into the respective DIS and decode
them via the management system.
The following block diagram shows the signal path in the DIS and the signal
transfer from and to a management system in simplified format.
The analog video signal is first digitalized in the encoder and transferred to
the decoder. During a recording, the data coming from the encoder are
saved on the hard disk and can be read out again via the decoder during
playback. The decoder converts the digital signal back into an analog signal
for viewing on the monitor.
Encoder
Decoder
Hard Disk
Analog
video input
Analog
video output
LAN / WAN
Management
System
Diagram. 7-22
