Product Identification¶
Depending on the location of the label there are different ways to identify the USB-SD-Mux.
The serial number is - regardless of the type of label - constant over all versions.
The serial number and hardware revision are also part of the USB identification and can be used to distinguish multiple USB-SD-Muxes connected to one host computer. See Reliable Names for further reference.
Label on the Package¶
The label on the package has changed with the batch in May/2021, therefore you can either find a small label on the front of the packaging or a larger label on the bottom of the packaging.
Small Label on the front side¶
Example for a small USB-SD-Mux product label¶
You can identify the revision of your device by the revision-string on the label on the packaging. An example of such a label is shown on the right.
The information on the label is formatted as follows:
SN: 000001
usb-sd-mux-S01-R04-V02-C01
^^^^^^^^^^ - serial number
^^^^^^^^^^^^^^^ ------------ hardware revision
^^^^^^^^^^ ---------------------------- product identification
Large Label on the bottom side¶
Example for a large USB-SD-Mux product label¶
The example serial number SN: 00002.00001 indicates it is the first
instance in product class 00002 (USB-SD-Mux).
The revision string usb_sd_mux-S01-R04-V02-C02 decodes to:
usb_sd_mux- ProductS01- PCBA designR04- Device revisionV02- Assembly variantC02- Changes done after product release
Label on the Device¶
The label on the device uses a short form of the identification:
USB-SD-Mux
rev. 4 Nr. 0987
^^^^- Serial number
^^^^^^ ----------- Short form of the revision
The short form of the revision can be matched to the long revision as follows:
Short form Full revision
---------- -------------
[no revision given] usb-sd-mux-S01-R02-V01-C00
rev. 4 usb-sd-mux-S01-R04-V02-C01, usb-sd-mux-S01-R04-V02-C02
Product Changelog¶
During development of the USB-SD-Mux multiple releases have been done. This chapter lists the differences between these versions: