ETS-Lindgren 8000-002, User Manual, Page: 18 / 25

18 Operation www.ets-lindgren.com
Fault Indicator (Red LED)
Should a fault be detected, the red LED on the amplifier front panel will be
illuminated. The amplifier will be forced into standby mode and the unit will cease to
function. This action is latching, therefore only when the fault has been cleared can
the amplifier be reset; this is done by pressing the standby/operate switch.
The reasons for the system fault light to illuminate are as follows:

Excess module temperature

Air cooling failure (fans failing to operate)
Interlock Indicator (Orange LED)
When the rear panel interlock is activated the interlock indicator will illuminate and
the amplifier gain stages will all be turned off. This action is latching; therefore, the
amplifier will return to Standby mode when the interlock is released.
Local Lockout Indicator
This indicator is used when the USB/GPIB option is fitted. Refer to the separate
Remote Control Interface manual supplied.
RF Input (Either Front or Rear Panel Mounted)
The RF input will accept a signal from an RF generator. This input must be within the
operating frequency range of the 8000-002 amplifier. An amplitude of up to 0dBm will
be sufficient to saturate the amplifier. Operation outside the specified frequency
range should not be attempted as it may subject the amplifier to undue internal
stress.
RF Output (Either Front or Rear Panel Mounted)
WARNING: The centre conductor of the RF output represents a severe
burn hazard to personnel.
Never operate the amplifier without a proper termination or with defective
cables or connectors.
This connector must be suitably terminated at all times during operation. Ensure that
the cable is capable of handling the power available, which may be as much as
440 watts.