Comrex ACCESS MultiRack Product Manual page 112

APPENDIX B - IP COMPATIBILITY
The MultiRack is capable of encoding and decoding a choice of three different types of non-MultiRack streams:
Standard RTP, Luci Live and Zephyr Xstream. The choice is exclusive— i.e., you must set the MultiRack specifically
for the type of stream you wish to be compatible with and you will remain incompatible with the other two types
unless you change it. This setting has no effect on normal MultiRack functions, which continue to operate as before.
1. Luci Live - This PDA/PC-based software allows real-time streaming over IP links. As of version 1.2, Luci Live
includes AAC and HE-AAC, in addition to the default MP2 algorithm. MultiRack can communicate with
Luci Live only in Luci's AAC modes. Note: The free demo available from Luci does not incorporate the AAC
functions; you must have a licensed and registered copy to use AAC.
To communicate with a Luci Live device:
• Initial Setup - This will define all Standard RTP connections to be Luci Compatible.
• MultiRack - On the System Settings tab, open the Standard RTP Settings option and choose RTP
Compatibility Mode. On the pull-down box, choose Luci Live.
• Incoming Connections - Luci Live sends either an AAC or HE-AAC stream to the MultiRack on UDP
port 5004. These streams will be automatically decoded. By default, a return channel of AAC 56 kb/s
mono is returned to the Luci Live product. The return channel may be altered to any Luci-compatible
mode in the Systems Setting section.
• Outgoing Connections - Build a profile using the Profile Manager on the MultiRack and select a
Channel Mode of Standard RTP. Then choose a Luci-compatible encoder for the outgoing call. The
Luci software will control what type of stream, if any, is returned to the MultiRack.
2. Zephyr Xstream - Xstream Firmware version 3.2.0 and higher support an "RTP Push" function that is
compatible with MultiRack in some modes. MultiRack is not currently compatible with the Xstream's HTTP
and SIP streaming functions.
There are several limitations imposed by the Xstream when using the RTP Push function:
• On the Xstream, only AAC and MP3 coding are available in this mode, and MultiRack is only
compatible with the AAC mode.
• The Xstream uses downsampling in modes below 96 kb/s, which is not supported by MultiRack.
• In order for an Xstream to decode a MultiRack stream, the default decoder setting must be changed
from <Auto> to <AAC> in the codec menu of the Xstream.
To communicate with a Zephyr Xstream:
• Initial Setup - This will define all Standard RTP connections to be Xstream Compatible.
• MultiRack - On the System Settings tab, open the Standard RTP Settings option and choose RTP
Compatibility Mode. On the pull-down box, select Zephyr Xstream.
• Incoming Connections - Zephyr Xstream sends an AAC stream to the MultiRack on UDP port 9150.
These streams will be automatically decoded. By default, a return channel of AAC 96 kb/s mono is
returned to the Xstream. The return channel may be altered to any Xstream-compatible mode in the
Systems Setting section.
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