Controlling the AM-4
25
UDP Message Layer
The control source sends UDP Packets to the AM4. A UDP Packet contains
information about the packet source (IP Address, Port number) as well as definable
user data. The user data contains the entire AM4 Control Message including all
AMINet specific bytes. These packets should be sent to the broadcast IP Address
(0xFFFFFF) or the specific AM4 address with UDP port number 2639.
Control Message Response
The unit will normally send back a response to each Control Message it receives.
The user data in these responses exactly match those in the Pioneer / AMI control
command descriptions. For example, you’ll receive an “R” contained when you send
a “PL” contained in the AMINet wrapper. The responses are sent to the IP Address
and UDP Port number found in the UDP packet that contained the original Control
Message. As with the Addressable serial protocol, any Control Message sent to the
wildcard unit ID (127) will not receive any response. This practice avoids any
potential confusion at the source of the Control Message due to many responses to
the same message.
A Software Developer’s Kit with C Source Code implementing this protocol is
available on our website at
http://www.alcorn.com/support
.
Summary of Contents for AM-4
Page 1: ...AM 4 Digital Audio Machine Hardware and Software Reference Manual ...
Page 2: ...ii Welcome PLACE HOLDER FOR THE BACK OF THE FRONT COVER DO NOT PRINT ...
Page 3: ...Welcome iii Digital Audio Machine User s Guide Alcorn McBride Inc ...
Page 6: ......
Page 10: ...4 Quick Start Guide ...
Page 32: ...26 Controlling the AM 4 ...
Page 58: ...52 GPS Operation GPS Operation ...
Page 70: ...64 Troubleshooting Guide FAQ ...
Page 71: ...Mechanical Information 65 Mechanical Information Mechanical Dimensions Surface Mounting ...
Page 74: ...68 Mechanical Information Rack Mount Kit 2 Unit Part Number 302 100704 ...