Jonathan, Satya, Jim, TJ, Dave:
This morning we installed the new x509 certificate on h1fescript0 to replace the expired cert. We were then able to restart the ext_alert code on h1fescript0. This runs under monit management.
I have created an external alert overview medm screen, it is called from the SITEMAP via the SYS->'GRB/SN External Alert' pull-down. I pulled out the ext_alert parts from the CAL overview screen to make the screen (screenshot attached).
TJ verified that the audible alarms at the operator station are announcing these alerts.