What are the OPTAC and Siemens VDO download tools?
The OPTAC unit allows you to have a portable card reader as well as being able to download from the VU. This means that you can visit your drivers to collect their card readings, rather than them having to come to the office. Alternatively it can be bolted to a desk for the drivers use out of hours Usage: Once the VU/driver data has been collected simply plug the OPTAC into your PC using the USB cable provided. Open Renault Trucks Tachomaster and click the required button; Digital Card Reader for driver card data, Vehicle Unit Reader for VU data, then browse for the file/s on the OPTAC removable drive and upload them to Renault Trucks Tachomaster The Siemens VDO unit works in a similar way to the Renault Trucks Tachomaster VU download tool, both driver and VU data is collected via the download tool Usage: Once the VU/driver data has been collected simply plug the Siemens VDO unit into your PC using the USB cable provided.