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APPENDIX D: Ravenna (ZMAN) Setup
Introduction
Installing the iAM2-8 into an existing and functioning Ravenna network using the
Merging ZMAN Card is virtually plug and play. The iAM rear panel AoIP jack
supports 1Gb/s and 100Mb/s Ethernet devices in Ravenna Audio over IP network
configurations.
iAM2-8 channel source selections are made by choosing
Input Type
‘
AoIP
’ in the
Configuration-Configure Presets
page regardless of which AoIP option is installed.
Note:
In addition to the iAM2-8 configuration, the Merging ZMAN Card needs to be
configured using its own configuration tool. The menus in this configuration tool are
shown in this Appendix.
What is in the iAM2-8 for Ravenna?
The AES67 enabled Merging ZMAN Card supports the following features:
RAVENNA-Compatible Talker/Listener
1)
RFC 3551 – RTP Profile for Audio and Video Conferences
a)
L16 16-bit linear format defined in RFC 3551 clause 4.5.11
b)
L24 24-bit linear format defined in RFC 3190 clause 4
c)
AM824 24-bit Audio as defined in IEC61883-6
d)
Multicast and unicast session support
e)
48 kHz and 96 kHz audio sampling rates
f)
1 to 8 audio channels per stream
g)
Up to 64 streams
2)
Media clock support
a)
48 kHz and 96 kHz
3)
Hitless Stream Redundancy
4)
IGMP v3 support
5)
Session Announcement Protocol (SAP) support
AVB Ethernet Features
AVB uses the concept of streams and channels. A stream is a connection from one
talker to one or more listeners. One stream can be made up of 1-60 audio
channels. The Ravenna option supports the following AVB features:
1)
AVB 1722 AVTP with multiple subtypes:
a)
IEC 61883-6 MBLA
b)
AM824, 24-bit Audio Encapsulation
c)
Support up to 64 streams
d)
Up to 8 channels per stream
e)
512+512 Channels of audio
f)
48kHz and 96kHz sampling rates
2)
IEEE 802.1Q/SRP
