Part 14
status. When it lights up in orange, it means that the external AC power is
standing by with the system powered off. It turns into blue when the system is
powered up. When the UPS function module option and the UPS battery are
installed, this LED further indicates the status of system working on battery
power by flashing in blue. The blue light will flash rather fast when the UPS
battery approaches a fully discharged condition to remind the operator that
power will soon finish. In few seconds, the whole system will soon be
automatically turned off and the LED will be OFF. In case the AC power
resumes during the usage of the battery power, the flashing LED will keep on
flashing for few seconds before steady till the AC supply is stable.
POWER ON/OFF CONTROL
The HT terminal implements electronic power control, such that the
main power to the system may be controlled by many methods as below:
1. Hardware power switch
2. Software OFF command
3. Automatic power ON control
4. Emergency power OFF
Switching from OFF to ON requires a normal supply of the AC power.
Hardware Power Switch
This button is located at bottom front corner of
right side as in right picture and can be used to turn the
system on and off alternatively if no optional UPS
function module installed. When this option is installed,
this hardware switch can also be programmed to be an ON only switch through
software command so that when this switch is accidentally pressed during
system turned on, the system just remains on and unaffected.
Software Off Command
The system may also be shut down under software control if the
optional UPS function module is installed. Please just follow the arrangement
by your system integrator for this capability.
Automatic Power On Control
The system may also turn on according to some preset conditions
such as Modem Ring Up and Alarm Clock Wake Up or LAN Wake Up.
To utilize Modem Ring Up or Alarm Clock Wake Up function, the
user should enter the CMOS setup by pressing “D el” key at system boot up,
choose for “PM Wake Up Events” in “Power Management Setup” and make
the “Ring Power Up Control” enabled for Modem Ring Up or select the
“Power Up by Alarm” for Alarm Clock Wake Up. Save the configuration and
exit the CMOS setup program. The Preset Power On Control will then be
