Based on reported issues with the keypad intermittently logging out on it's own.
Attached and below is latest information how to update the Firmware in the V1500x-sccs keypad.
This update remedies a random disconnect issue seen as a Log Out to the VMDC system on the Keypad and the VMDC.
This assumes all other troubleshooting on the switch and the VMDC is updated to at least 6.6sp2
Please review the attached document. " lantronix update .pdf "
Upgrading the network interface firmware in a V1500X-SCSS keypad 6/27/2013
Download Device Installer and Software files.
Below is latest information how to update the Firmware in the V1500x-sccs keypad.
1- Device Installer " http://ltxfaq.custhelp.com/app/answers/detail/a_id/644 "
2- X-Port3 firmware " http://ltxfaq.custhelp.com/app/answers/detail/a_id/1597 "
3- X-Port 3 Web Interface