QK-A034 Manual
V 2.0
11 of 16
2020
2.7. USB Output
The A034 is supplied with a type B USB connector and USB cable. The USB cable can be linked
directly to a USB port on the PC.
The USB connector provides data input and output as standard (multiplexed information from all input
instruments will be sent to this connection). The USB port is also used to configure the multiplexer and
to update its firmware.
2.7.1. Will a driver be needed to connect via USB?
To enable the USB data connection of A034 to other devices, related hardware drivers may be needed
dependent on your system requirements.
Mac:
No driver required.For Mac OS X, the A034 will be recognized and shown as a USB modem. The ID
can be checked with the following steps:
1. Plug the A03 into a USB port and launch Terminal.app.
2. Type: less /dev/*sub*
3. The Mac system will return a list of USB devices. A034 will display as -
“/dev/tty.usbmodemXYZ”
where XYZ is a number. Nothing further needs to be done if it is listed.
Linux:
No driver required. When plugged into the computer, A034 will show up as a USB CDC device on
/dev/ttyACM0.
Windows 7,8,10:
The drivers usually install automatically if your device is running an original Windows 10 version. A new
COM port will automatically show up in the device manager once powered and connected via USB.
The A034 registers itself to the computer as a virtual serial com port.
If the driver does not install automatically, it can be found on the included CD and downloaded from
2.7.2. Checking the USB connection (Windows)
After the driver is installed (if needed), run the Device Manager
and check the
COM number
(this is the number associated with
the USB port you are using. The port number is the number that
Windows assigns as an input device. These can be generated
randomly by your computer). Your chart software may require
your COM number in order to access the data.
The port number for the A034 can be found in Windows ‘Control
Panel->System-
>Device Manager’ under ‘Ports (COM & LPT)’.
Find the A034 in the list for the USB variant. To change this
number, double click the A034 and select the ‘Port Settings’ tab.
Click the ‘Advanced’ button and change the port number to the
one required.
Checking the USB data flow:
If desired, the USB data can always be checked with the
configuration tool. To do this, run the configuration tool, connect
to A034 and then click
‘Open Port’, the input data
will be shown on the display field.
(See Configuration section)
