Connecting NoiseTools to Your Instruments and Accessing Data Remotely

USB Download of measurement data

Most data is downloaded from the noise measurement instruments via a USB connection. The Optimus sound level meters present the internal data as a storage device within Windows. Users’ systems must be able to read from a connected USB storage device.

Please note that the local system cannot write to the memory card as the instrument prevents this. The device cannot be encrypted by external services.

Other instruments may require an additional driver to be installed. This will be carried out when the device is connected to the local PC for the first time.

The user’s system must be able to install drivers for connected devices. 

All drivers supplied by Cirrus Research plc are signed.

Please note: If the unit is not showing as connectedwhen attempting to download data, please contact your IT team and check that you have read and write access.

Internet access for the NoiseTools program

In order to function properly NoiseTools requires access to the following locations: 

• sms.crplc.co.uk
• error.crplc.co.uk
• optimus-cloud.co.uk
• ics*.optimus-cloud.co.uk
• optimuscloud.azurewebsites.net
• cirrusics.blob.core.windows.net
• s3.amazonaws.com
• dev.virtualearth.net

NoiseTools only uses outgoing HTTPS connections to port 443

Remote data access

The NoiseTools software can be used to connect to a remote noise monitoring instrument such as the CK:680 and CK:685.

When NoiseTools connects to a CK:680 outdoor kit using a remote connection, it requires access to the following:

• TCP on port 22850
• The instrument IP Address

You can find your instrument’s IP address via the Optimus Cloud website, once it has been linked to your account. Most instruments use a static IP address so this will not change over time.

Note 1: Connections to the Optimus/CK:680 instruments use an outgoing TCP connection to port 22850. These do not currently support forwarding through a proxy server.

Note 2: These connections can be made from any available port in the range 49152 to 65535. The ports are allocated and controlled by Windows.

Note 3: If the NoiseTools PC or network has a firewall that blocks outgoing connections, it will need to be configured to allow connections from NoiseTools to the Optimus/CK:680.

This can be done by allowing any connection to the known IP and Port of the instrument(s). It can be further restricted to the IP address of the NoiseTools PC if required.