Rutter VDR-100G3 - Data Management Module; Data Processing Unit; Figure 1-2 - Standard Data Processing Unit

Chapter 1: System Overview, Rev. 1.1
1.1.3 Data Processing Unit
The Data Processing Unit (DPU) receives and processes information provided from the various
Audio, Video, and NMEA modules. This information is processed in the Data Management
Module (DMM) for archiving on the DMM’s internal hard drive and the Final Recording Medium
(FRM).
The VDR-100G3 power system is housed in the DPU, and accepts universal AC from the ship’s
emergency power while providing 24VDC to the VDR-100G3 modules. The power system
includes batteries to provide uninterrupted power to the audio recording system, OAU and FRM in
the event of a blackout.
Figure 1-2 - Standard Data Processing Unit
The VDR 100G3 hard drive capacity in the base DPU system is partitioned into 3 segments:
1. A segment for the current 12-hour data set;
2. A segment for secured 12-hour data sets; and
3. A segment for archived data sets.
1.1.3.1 Data Management Module
The Data Management Module (DMM) is a rugged, small form factor Pentium computer. It is
equipped with Ethernet ports, serial ports and USB ports, a high capacity hard disk drive, and a
compact flash card.
The DMM compresses and stores data received from the interface modules and, simultaneously,
outputs processed data to the FRM and real-time display (as described below).
The DMM communicates via a serial port with the OAU and the Power Control Centre.
The DMM can be configured to provide data for real-time display via an Ethernet connection. In
addition to the most current data set, the base model DMM can store numerous previously
recorded full data sets in a secure location. This secure location helps protect (but cannot
completely prevent) previously recorded data sets from being overwritten.
VDR-100G3/G3S Installation Manual 08/10/2008
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