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User Manual
Rev. 1.0- 29/11/05
PTRL NV/3 & RXRL NV/3
5.4.12 System layout
In addition to meeting these connection requirements, a preliminary ambient
verification is indispensable before installing the radio link in order to ensure the
channel to be used is clean and establish correct optical visibility of transmission
and reception sites. Any obstacle affecting used frequencies will impair correct
reception.
All components, antennas and cables must be selected carefully and an adequate
margin to compensate for variations in ambient conditions must be allowed to ensure
good performance.
This study must be performed by expert, suitably trained personnel and is not covered
in this manual.
Please do not hesitate to contact R.V.R. for any clarifications you may need or any
issues relating to your specific application.
OPERATING THE TRANSMITTER WHEN DISCONNECTED FROM THE
ANTENNA OR WITH A FAULTY ANTENNA CONNECTION MAY LEAD TO
DEGRADED PERFORMANCE OR IRREPARABLE DAMAGE TO THE FINAL
STAGE.
- SUCH DAMAGE IS NOT COVERED BY WARRANTY -
5.5 Operation on Batteries or DC Power Supply
Like all R.V.R. radio link systems, the pair of PTRL&RXRL NV/3 units features
terminals for connection to an external backup DC power supply source in the event
of mains failure. However, this is the first series to be supplied with an incorporated
battery charger as standard. These terminals are for a 24Vdc nominal voltage with
negative connected to ground and accept input voltage in a 22 to 28 Vdc range in the
event of mains failure. When mains power is available, they supply a steady regulated
27.6V to trickle-charge the batteries.
The main switch takes no effect on the battery power supply input, which is connected
internally. There are no switches in series; a diode and an internal resettable fuse
protect the batteries from polarity inversion.
If voltages in excess of 28Vdc are applied to battery terminals or current draw
at the terminals exceeds the power supply for battery charging, severe
damage to the equipment or its power supply unit may result.
Summary of Contents for PTRL NV/3
Page 1: ...PTRL NV 3 RXRL NV 3 User Manual Volume 1 Manufactured by Italy...
Page 4: ...PTRL NV 3 RXRL NV 3 ii User Manual Rev 1 0 29 11 05 This page was intentionally left blank...
Page 8: ...4 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 This page was intentionally left blank...
Page 55: ...51 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 Ensemble View 10 1 PTRL NV 3...
Page 56: ...52 52 User Manual Rev 1 0 29 11 05 PTRL NV 3 RXRL NV 3 10 2 RXRL NV 3...