Tait TB8100 User Manual page 76

AC-DC converter
DC-DC converter
Standby converter
PA
Reciter/control
panel
66 Part D: Monitoring
The LED in the AC-DC Converter box indicates the state of AC power.
LED Text Description
Green On AC power input is usable
Red Off AC power input is too low or too high
Gray Off Mains Failure test is running
The box label indicates the voltage the DC-DC converter is designed for (12,
24, or 48 V).
The LED in the DC-DC converter box indicates the state of the battery input,
whether or not that input is currently being used.
LED Text Description
Green On Battery input is usable. The PMU can provide up to 500 W
(or up to 40 W of power in low power mode).
Red Off Battery voltage is too low or too high.
Gray Off No battery power supply is fitted (the box is also disabled).
The LED in the Standby converter box indicates the state of the DC supply to
the standby converter. This submodule operates only when the PMU enters
deep sleep mode, in which it provides power only to the reciter.
LED Text Description
Green On The standby DC supply has been turned on. The PMU is
providing only 10 W of power to the exciter.
Red Off Battery voltage is too low or too high.
Gray Off No standby battery power supply is fitted.
Power outputs
The right-hand side of the form displays information about the PMU's power
output to other TB8100 equipment in the rack frame.
There are three arrows going into the Output switch box. The one that is not
disabled indicates which converter is currently providing power
The PA LED displays green if the PMU is supplying power to the PA and gray
if it is not. When the PMU is using mains power, it always supplies power to
the PA. When it is using battery power, it supplies power unless it is in sleep
mode and using the standby converter.
The Reciter/control panel LED indicates the status of the power supply to the
receiver and the control panel. Green means that it is supplying power. Gray
means that it is not, because the PMU is in battery protect mode.
MB8100-00-00-806 © TEL 2003