Rohde & Schwarz GB4000V, User Manual

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R&S GB4000V Audio Unit
User Manual 6174.7514.02 - 02 40
3.9.3 Meaning of Parameters
3.9.3.1
Website Configuration
Network
Parameter Description
IP Address An IP address must be assigned to the network device which allows each
Device to be uniquely identified and operated in configuration and
VoIP mode .
Additionally, specifying the net mask and gateway makes it possible to work within
different subnets via a router.
Subnet Mask The subnet mask is used to divide an IPv4-based network into various subnets.
Gateway A gateway can be entered here (e.g. a router). A gateway allows the audio unit to
communicate with other networks.
Primary DNS Server IP address of the primary domain name server.
Secondary DNS
Server IP address of the secondary domain name server.
Table 14: Meaning of settings of the Network group.
Info
Parameter Description
Location Info Information (up to 20 characters) can be entered to describe the location of the
R&S GB4000V.
Installation Info Information (up to 20 characters) can be entered to describe the R&S GB4000V
installation more precisely.
Table 15: Meaning of settings of the Info group.
Parameter
Parameter Description
Operation mode This parameter is used to switch between the analog audio mode and VoIP mode
of the audio unit.
Impedance RX The audio interface between an R&S RX module and the R&S GB4000V is based
on a 600 Ohm system with galvanic isolation. The impedance can be switched to
high (600 Ohm) or low (10 Kilo Ohm) impedance.
Impedance TX The audio interface between an R&S TX module and the R&S GB4000V is based
on a 600 Ohm system with galvanic isolation. The impedance can be switched to
high (600 Ohm) or low (60 Ohm) impedance.
Automatic gain
control This parameter is used to enable or disable the automatic gain control (AGC).
Automatic gain control keeps the audio output level (analog or digital) constant with
varying microphone input level (speaker volume). AGC is applicable for analog and
VoIP interface
Min. volume
internal/external
speaker This parameter is used to set the minimum volume for the loudspeakers.
Min. headset volume This parameter is used to set the minimum volume for the headsets.
External speaker
volume This parameter sets the volume of the external speaker in ratio of the internal
speaker.
RX audio level This parameter is used to set the level of the audio line.