HT-4600/PB-4600 series Technical Manual 30
though very unlikely still fail. When such situation happens, please remove the
external power input from the adaptor and disconnect the UPS battery for few minutes
to reset the hardware registers.
One example of the need for this forced power off function could happen when power
switch is triggered within 10 seconds of last switching off. It is a common practice
that once the system power is switched off there should be some waiting time before
next switching back on. If the system power is switched off and on in very short time
chances are the system LED could indicate power on status while the system remains
off. In such case, please use the forced power off function to cancel the error and wait
for 10 seconds before switching on again.
