Specifications

17-418 | OWNER’S GUIDE
ORION Overview
To create instruments with dozens or even hundreds of dynamic channels, multiple ORION cards can be
installed within a single unit. All cards are synchronized via the internal sync-bus to ensure absolute simulta-
neous sampling of all channels.
Key Features
 Simultaneous sampling
 Separate A/D converter channel
 Dozens of different models
 Synchronized analog, digital, counter and CAN inputs
 Clock output for synchronizing external devices, e.g. video cameras
 Sync option for synchronizing multiple systems or synchronize to IRIG or GPS
Multiple Dewetron instruments can be hardware-
synchronized using the ORION-SYNC option. De-
pending on distance and local preconditions there
are several choices how to use this option.
You can connect your instruments via standard
CAT6 cables, over short distances. The maximum
length depends on the sampling rate and the A/D technology, and
ranges between 30 m to 200 m. This requires that the ORION-SYNC
option was factory installed when each system was made.
For large distances which do not allow physical connection of the instruments, synchronization can be
achieved using GPS or IRIG time codes. This requires that the Dewetron systems have either the IRIG-
CLOCK or GPS-CLOCK option installed internally, or connected externally (order IRIG-CLOCK-INT or
GPS-CLOCK-INT for factory-installed internal interfaces, or the IRIG-CLOCK-EXT or GPS-CLOCK-EXT for
eld-installed external interfaces).
The driver design enables total continuous gap-free disk storing rates of more than 100 MB/s. Today stan-
dard computers with a single hard disk reach continuous gap-free storing rates between 50 MB/s and 80
MB/s.
A/D Technologies within the ORION series
Delta-Sigma Converter
This technique is used in the ORION cards with 22 and 24-bit A/D converters. Of course, 24-bit converters
offer highest dynamic range (up to 120 dB).
Whenever you choose a sampling rate, the used internal sampling rate is up to 512 times higher. Using
this over-sampling technique full anti-aliasing protection is guaranteed. These boards can not be external
clocked, but synchronized from board to board and also synchronized to GPS clock using the DEWE-GPS-
CLOCK or to IRIG time using DEWE- IRIG-CLOCK.
- One card must be set as the master, and the others as slaves. This
is done at the driver level.