ARCHIVE CONTENTThis resource is not the newest version and may contain issues fixed in later versions. Unless you have a particular reason for wanting this file, you should get the newest version which is linked from the product page or the support page. The resource that replaced this one is linked to below.
LDH400P firmware files V1.03/V1.05
Updates to the device firmware may be made available from time to time. This firmware resides in flash memory and can be updated via the USB interface. The firmware versions can be checked using the *IDN? query from the remote interface.
The LDH400P uses two firmware files; one for the main hardware and one for the interface board. This version is a complete firmware update with main firmware V1.03 and interface firmware V1.05. Interface firmware V1.05 included LXI/LAN code updates to fix mDNS related network dropout issues. Main firmware version 1.03 implements changes to the manufacturing process only.
This firmware is applied using the Firmware update utility linked to below which also includes instructions.
See newer version: LDH400P firmware files V1.04/V1.06