Time accuracy and high-quality data
Sophisticated, field-proven time tagging technology that works in harmony with NaviSuite for improved survey results.
Accurate time tagging for improved survey results
When time accuracy is of pivotal importance to your survey operation, the EIVA ATTU time-tagging unit offers you a simple way of taking the time-tagging feature of EIVA's software to the highest level.
ATTU can be applied in any survey set-up that includes EIVA NaviPac and NaviScan navigation and data acquisition software solutions. It comes in two versions: one for rack mounting and one for subsea mounting.
Accuracy better than 50 µSec
Knowing the when and where of your sensor data is an essential element when you want optimum accuracy and high-quality data of your survey operations. ATTU ensures a time-tagging accuracy that is better than 50 µSec. This is far superior to what can be obtained through use of the standard clock of an ordinary PC.
Setting survey sail quickly through easy configuration.
Setting survey sail quickly through easy configuration
The rack-mounted unit enables plug’n’play installation into existing solutions – you simply connect the sensors and configure the unit in the intuitive web interface.
The ATTU has a multiplexer which converts the serial sensor feeds into a single UDP/IP feed wrapped in the same time format. This, together with the fact that ATTU allows for distributed interfacing through optional location of the ATTU rack unit on the vessel, eliminates complex cabling.
Ideal solution for ROVs with multiple sensors
The subsea model of the ATTU time tagging unit consists of a housing comprising electronics, firmware, a number of serial ports and a multiplexer.
This solution is ideal for ROVs with multiple sensors fitted, as the multiplexer converts data from serial to IP.
Configurable with non-EIVA software applications
Should you want to use the ATTU with your own software applications, we also licence out the ATTU protocols and formats on request.
Possible to fit as OEM equipment
The ATTU can be fitted as an OEM product by integrating the subsea electronics and firmware into your own subsea unit.
Accuracy better than 50 µSec. Time synchronisation via GPS or NTP, independent of sensor data format.
- RS232/RS422/RS485 interfaces to sensors
- 16- or 24-port versions available
- Independent of sensor data format
- Network time server (NTP) for other units in the network
- Time synchronisation via GPS or NTP
- Visible PPS indicator
- Recording to USB disc
- (Subsea version only) Comes in two versions, depth rated to 500 m and 3000 m respectively
- (Subsea version only) Comes with communication modules of either 1 GB/s fiber-optical or 20-100 MB/s via cable, depending on cable length