Sony DWR-R02D Operating Instructions Manual page 15

ATTENZIONE
• Non toccare il connettore LAN direttamente con le mani.
L'eventuale trasferimento di elettricità statica può
causare il malfunzionamento dell'unità.
• Per ragioni di sicurezza, non collegare il connettore per
il cablaggio del dispositivo periferico che potrebbe avere
una tensione eccessiva in questa porta. Seguire le
istruzioni per questa porta.
PRECAUCIÓN
• No toque el conector LAN directamente con las manos.
La transferencia de electricidad estática puede provocar
un fallo de funcionamiento de la unidad.
• Por razones de seguridad, no enchufe a este puerto un
conector de cableado de dispositivo periférico que pueda
tener una tensión excesiva. Siga las instrucciones de este
puerto de conexión.
e ANTENNA a/b IN (antenna a/b input) connectors
(BNC-R)
Connect an optional UHF antenna (e.g., AN-820A) and the
supplied whip antenna to these connectors.
When an antenna is connected, this connector supplies 9 V
or 12 V DC power to the booster incorporated in the
antenna. When using an antenna which does not require a
power supply, you can turn off the power output by menu
operation.
For details, see "DC power supply setting for antennas
(ANT DC OUT)" on page 32.
Antenna attenuator can be also set with menu operation
according connection methods of the antennas.
For details, see "Antenna attenuator setting (ANT ATT a/
b)" on page 32.
CAUTION
ANTENNA a/b IN connectors are non LPS (Limited
Power Source) circuits.
ATTENTION
Les connecteurs ANTENNA a/b IN sont des circuits non
LPS (Limited Power Source, source d'alimentation
limitée).
Notes
• Do not short-circuit this connector.
• When connecting DWR-R02D units in cascade, set ANT
ATT a/b to "0dB" and ANT DC OUT to "OFF" on any
DWR-R02D unit that is not directly connected to the
antenna.
About the antenna gain and the cable loss
When the antenna with the booster is connected to the
DWR-R02D and the antenna gain exceeds the coaxial
cable loss between the antenna and the DWR-R02D, the
RF signal which exceeds the allowable level may be input
to this unit.
To prevent this, set the cable loss and antenna attenuator
(0dB, 5dB or 10dB) (see page 32) to meet the following
equation.
The RF indicator on the receiver lights in orange when the
input becomes 80 dBµ or higher, so you can use it as a
rough guide.
Gain of antenna booster - Cable loss between antenna
and this unit - Antenna attenuator setting (dB) = 0 dB
or less
Reference: signal loss examples
Type of cable
RG-212/U
Frequency 600 MHz 800 MHz 600 MHz 800 MHz
Cable 50 m 12 dB
length (approx.
165 ft)
100 m 24 dB
(approx.
330 ft)
For details on gain of antenna booster, refer to the
operating instructions supplied with the antenna.
Notes
• The cable loss may differ depending on the manufacturer
of the cables.
• The rated resistance of ANTENNA a/b IN connectors is
50 Ω. If the cable with 75 Ω resistance is used, actual
signal loss is usually a few dB lower than the values on
the table above.
f AC IN connector
Connect to an AC power source with the supplied AC
power cord.
g DC IN connector (XLR)
This connector connects to an external +12 V DC power
supply.
The DC IN pin configuration of the unit is as follows.
Pin No. Function
1 –
2 NC
3 NC
4 +
Note
Make connections using proper polarity. Incorrect polarity
may damage the unit.
Always check the polarity before making the connection.
AC power supply is prioritized when operating the unit.
RG-213/U
14 dB 9 dB 11 dB
28 dB 18 dB 22 dB
Parts Identification
15