R.V.R. Electronica PTRL, User Manual

Page: 44 / 48

PTRL & RXRL LCD
40 / 44 User Manual Rev. 1.2 - 31/01/05
The signal obtained comes sended to IF card for successive elaborations.
10.6 VCO/PLL
This card receives the signal which is equivalent to the setted frequency which comes
from the CPU of the panel card.
In order to realize the operations, it is necessary to have a splitter which processes
the information received and sends them back to the PLL stage.
10.7 Telemetry card
This device was designed to give indications to the user concerning the functioning
status of the unit. All the available input and output signals of the unit are indicated on
the DB15 connector.
On the same card there is an "INTERLOCK" BNC connector which switches off the
device. When the central pin is grounded, the output power is reduced to zero until
the grounding connection is removed.
When it is used with an RVR amplifier, this connector is connected to the REMOTE
or INTERLOCK of the power amplifier with a BNC-BNC connector. In case of failure
of the amplifier, the central wire is grounded by forcing the unit to enter in stand-by
mode.