Telos Zephyr Xstream - Manual (Page 189)

USER’S MANUAL
Section 10: APPLICATIONS GUIDE 177
Xstream also has the useful ability to send Stereo to two sites. This is outlined below:
Xstream C
Transmit AAC J-Stereo 64
Xstream A
Receive = AAC 64
(use "Line 1")
Xstream B
Receive = AAC 64
(use "Line 1")
10.5 Choosing a Receive mode
You could always use the AUTO option. You will need to set the correct sample rate, however.
Using the appropriate receive mode will result in the fastest lock when connections are
established however. The appropriate Receive mode (set in the CODEC menu) will be
determined with the encoding or Transmit mode used at the far end. The terminology used at
the far end will vary. Therefore, we will break this section into sub‐sections depending on the
far‐end codec.
c
COMPATIBILITY TIP!
When two channels are required for transmission (i.e. for Stereo, J-Stereo, and Mono 128) an
"inverse multiplex" (IMUX) scheme must be used to break the standard MPEG data stream
into two streams for transmission.
In Layer-2, the Zephyr Xstream uses the CCS CDQ (TM) IMUX protocol. Most Layer-2
codecs support this method, allowing for compatibility among different codec manufacturers.
The Telos splitter used for AAC and AAC-LD, is published on our website to encourage
interoperability with other manufacturers.
w
IMPORTANT!
The Auto mode is not applicable when using "V.35 Single" for your Interface in the TEL
menu. You must select the appropriate receive mode in this case.
See Section 9 (V.35/X.21 Option) for details.