19. Marking
19.1. Lot number
The 15 digit lot number is printed in numerical digits as well as in form of a machine readable
bar code. It is divided into 5 blocks as shown in the following picture and can be translated
according to the following table.
Figure 34: Lot number structure
Block
Information
Example(s)
1
eiSos internal, 3 digits
439
2
eiSos internal, 2 digits
01
3
Hardware version, 3 digits
V2.4 = 024, V12.2 = 122
4
Date code, 4 digits
1703 = week 03 in year 2017,
1816 = week 16 in year 2018
5
Firmware version, 3 digits
V3.2 = 302, V5.13 = 513
Table 98: Lot number details
As the user can perform a firmware update the printed lot number only shows the factory
delivery state. The currently installed firmware can be requested from the module using the
corresponding product specific command. The firmware version as well as the hardware
version are restricted to show only major and minor version not the patch identifier.
Calypso reference manual version 1.2
© April 2019
www.we-online.com/wireless-connectivity
122