The Systembase C510xr audio codec has been designed and manufactured to
deliver unparalleled performance and reliability for professional real-time audio applications over ISDN and X.21.
The C510xr incorporates the fast apt-X Sub Band ADPCM compression system which can deliver a coding delay of only 2.8ms,
in addition to G.722 and G.711.
The C510xr is fully compatible with the existing C310xr ISDN codec when operating over ISDN and X.21 circuits.
In addition, the C510xr also supports Dual G.711 and Dual G.722 coding to provide enhanced compatibility with
ISDN Codec's from other manufacturers.
Additional design features include 24 Bit analogue and AES audio interfaces. The analogue interface
is electronically balanced resulting in a high Common Mode Rejection Ratio (CMRR) for a significant
improvement in performance.
Following a power failure, the C500 series of audio codec can fully reboot to the ready state
in approximately 1 second.
STUDIO TO TRANSMITTER LINK WITH BACKUP
The C510xr Codec is well suited for
implementing FM and DAB Studio-to-Transmitter Links (STL's), providing up to
22.5KHz Stereo audio over a 384Kbps digital line.
To maintain program continuity, an automatic ISDN backup is initiated if there is a failure on the
primary circuit. The restoration of the audio back to the digital line also
occurs automatically once the fault condition has cleared. To reduce the number
of ISDN lines required, the Codec's can be configured to monoise the input audio
during ISDN backup, and to deliver the audio to both left and right outputs.
The bi-directional auxiliary data port facility can be used to simultaneously
send RDS control signals to the transmitter, and receive telemetry
information. Alternatively, the auxdata port maybe configured to implement a set of
end-to-end contact closures for relay based remote management.
The C510xr backup feature is fully interchangeable with the existing C310xr.
Systembase Codec's interface directly
between the audio equipment and the ISDN network via standard ISDN RJ45
sockets. To facilitate world-wide operation, 12 international ISDN standards
are supported, and can be selected by the user from either the front panel or
the Web Server interface.
4 WIRE PRODUCTION COMMS (TALKBACK)
The C510xr codec can provide two 4 wire
productions comms audio channels for Outside Broadcasts (OB). The bandwidth of
the audio channels is selectable to be either 3.7kHz or 7.5kHz and enables
clear communications between the OB team and the producer located at the main
DIGITAL HYBRID FACILITY (TBU)
The Digital Hybrid Facility offers a
direct replacement for a Telephone Balancing Unit (TBU). The Dual G711 encoding
& decoding facility replaces the requirement to install additional TBU's
and analogue telephone line. The C510xr can either dial up or receive calls via
the ISDN line(s) and connect to a TBU or an analogue telephone, and can even
connect to a mobile telephone.
On the latest version of the codec firmware it is possible to independently control the dialing of individual ISDN B channels from the WEB browser interface.
DIGITAL AUDIO INTERFACE
AES3 digital audio interface is provided
on all models, and is equipped with automatic sample rate conversion to
simplify the problems of connecting between a studio reference clock and the
ISDN network clock. The AES3 interface is supported via two transformer
isolated XLR connectors located on the rear panel.
The C510xr audio codec features a dedicated Ethernet connection reserved purely for WEB management and SNMP control.
This dedicated Ethernet connection provides essential isolation from the IP (AoIP) streaming connection, simplifying the process connecting the codec to the public internet.
The management interface allows each codec to be remotely managed using the various standard web browsers such as IE, Chrome and Firefox.
To enable a hassle free experience the WEB server pages have been developed to avoid the use of active x components that may require administrative rights
to install on the local computer. In addition, this feature allows the Web manager to function correctly on MAC OS.
All C500 series Codec's have a facility to apply firmware updates via the WEB interface. This feature allows for hassle free maintenance
in environments where physical access is not always possible. During the update process the upgrade file, typically 400Kb, will be
checked for integrity prior to being flashed into the system. Program disruption is minimized to approximately 20 seconds.
All Systembase ISDN Codec's provide support for SNMP
(Simple Network Management Protocol). SNMP allows the codec to be managed by
industry standard, third party applications that are capable of monitoring and
controlling equipment over LAN and WAN environments. All Systembase ISDN Codec's are supported
by the BNCS control platform developed by ATOS and DataMiner developed by Skyline Communications.
This feature makes the C510xr audio codec ideal for integration into a automated control room environment.
A Recent addition to the C510xr audio codec has been the provision for selecting the
effective headroom at the Codec's analog interface. By default the analog headroom is set at +12dBu.
However, the user may now change to headroom to +18dBu from either the front
panel menu or web server interface.