Rose electronics Orion XTender OR2-SRDFSUD1D, Installation And Operation Manual, Page: 66 / 79

Orion Extender Installation and Operation Manual 63
Digital Audio Interface
The digital audio option supports the unidirectional transmission of digital audio data. Up to three sources can
be connected to the Transmitter unit. The active source is transmitted. If several sources are active
simultaneously, the XLR signal takes priority; otherwise, the first active signal does. All three connectors on the
Receiver concurrently provide digital audio.
Embedded Upgrade Cards with the digital audio option include a built-in sample rate converter which provides
predefined sample frequencies at the Receiver’s output. The user can directly set the following parameters by
using the Configuration File as described on page 50 .
Activate or deactivate sample rate converter in the Config.txt file on the flash drive of the KVM Extender.
If the sample rate converter is activated, the following characteristics are valid: 140 dB dynamic range
and -120 dB total harmonic dist noise.
Set the frequency of the sample rate converter by adding the SRC parameter. The following sample
frequencies are available:

32.0 kHz (add SRC32000 in the “Config.txt ” file of the Transmitter unit)

44.1 kHz (add SRC44100 in the “Config.txt ” file of the Transmitter unit)

48.0 kHz (add SRC48000 in the “Config.txt ” file of the Transmitter unit)

96.0 kHz (add SRC96000 in the “Config.txt ” file of the Transmitter unit)
Additionally, a delay can be set for converting the sample rate. The time is set in milliseconds and
separated from the parameter for the sample rate by a semicolon (e.g. SRC44100;12 ). The following
delays can be set up for the sample rates:

32.0 kHz: 3 - 60 ms

44.1 kHz: 2 - 44 ms

48.0 kHz: 2 - 40 ms

96.0 kHz: 1 - 20 ms
To deactivate the sample rate converter, write
SRC_NONE
in the
“Config.txt”
file of the Transmitter
unit.
Compatibility AES/EBU, S/PDIF, EIAJ CP1201, IEC 60958
Standards
Dolby Digital, DTS, PCM
Bit Depth
24 bit
Sample Rate 32 to 96 kHz
Transmitter (Inputs)
Mini-XLR (AES/EBU; symmetrical, lockable)
Coaxial (S/PDIF; RCA, Cinch)
Optical (S/PDIF; TOSLINK)
Receiver (Outputs)
Mini-XLR (AES/EBU; symmetrical, lockable)
Coaxial (S/PDIF; RCA, Cinch)
Optical (S/PDIF; TOSLINK)
Table 34. Digital Audio Specifications
Note:
For testing purposes it is possible to generate a sinus tone on the digital audio input module. In order to do so
set Jumper 1 on the input module.