We don't have an option to send a payload directly from oss.wavespot.net. Hence we upgrade it through CLI
We can run the following command on the box CLI to upgrade:
wget http://wisp.prontonetworks.com/PSC/PSC_ACEEX-6.0.2.81.NoVLAN-squashfs-sysupgrade.b
note: once it is downloaded use the below command to upgrade
sysupgrade -n PSC_ACEEX-6.0.2.81.NoVLAN-squashfs-sysupgrade.bin
note: sysupgrade -n" will cause automatic reboot of the box after the PSC firmware gets uploaded
just verify the version by using command cat /etc/phc_version