Alcorn Mcbride Digital Video Machine HD, Руководство пользователя

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Ethernet Control 49
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Ethernet Control
Control up to
127 Information
Stations at once
over a standard
Ethernet
network!
Please see the
Command Summary
section for a table of commands.
Note this section does NOT require the <CR> carriage return listed in
the protocol summary.
Now you can use a powerful subset of commands
from the Pioneer/AMI serial protocol to control multiple Information
Stations at once that are connected to a standard Ethernet network. By
sending UDP (User Datagram Protocol) packets across a network, you can
communicate with and control up to 127 Information Stations
simultaneously or independently.
A Software Developer’s Kit with C Source Code implementing this
protocol is available on our website at
ftp://ftp.alcorn.com/pub/software/udpsdk.zip
Hardware and Software
Requirements
Any Ethernet capable show controller or PC with a network interface card can
send messages to Information Stations located on the same network. To use
Ethernet control, your control source must have a way to broadcast UDP packets
containing arbitrary message bytes to a specific UDP port number (2638). Each
Information Station must be connected to the physical network via the RJ-45
Ethernet connector on the rear of the unit. All Information Stations must have
different IP Addresses to reside on the same Ethernet network. Each one must
also have a unique Unit ID, if you are using the broadcast IP address for UDP
control (255.255.255.255).
AMINet Protocol
The user data sent in the UDP packet follows our AMINet Ethernet protocol.
AMINet was originally developed for use with our Ethernet Machine, which
provides an Ethernet backbone for communication between Alcorn McBride
Show Controllers and controlling our DVM2 family of video players. Now the
same, easy to use protocol, can be used to control the Information Station.
AMINet is a very flexible and robust Ethernet protocol that allows for many
different uses; however, only one of AMINet’ s command op-codes is necessary
to transmit commands to the Information Station making the usage very simple.