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OPTIMOD-PC
work (see Figure 2-1: OPTIMOD-PC Network Scenarios on page 2-3).
•
Simple operation will only control OPTIMOD-PC cards that are installed in the
same PC that is running the Orban application.
•
Network operation allows you to control one or more OPTIMOD-PC cards over a
network, regardless of whether the OPTIMOD-PC card is located in the control-
ling computer.
Both modes of operation require you to run a server application in the background
on any remote computer housing OPTIMOD-PC cards. However, you do not need to
run the server if you are running the Control Application in a computer that has no
OPTIMOD-PC cards installed.
In this case, the Control Application would be dedicated to controlling
OPTIMOD-PC cards located in other computers on the network.
The server is installed automatically when you install the OPTIMOD-PC software and
is configured to run as a "Windows Service." The server application is an intermedi-
ary that enables the Orban Control Application to remotely communicate with the
OPTIMOD-PC card(s) installed in a given host computer. One instance of the server
application handles communications for all of the OPTIMOD-PC cards in a given host
computer. When the host computer is booted, the OPTIMOD-PC driver initializes the
DSP on the card, initializes the I/O settings, and sets the processor settings to a de-
fault value. After that, the OPTIMOD-PC server finishes starting up and then resets
the processing parameters and I/O settings to their previous power-down values.
The service completes this task just before the Windows Log-On screen appears.
The Control Application connects (through the server) to only one card at a time,
allowing you to recall, edit and save presets, set input/output mix levels, and do
other housekeeping tasks for that card.
Note that the Control Application does not use the server to interface
with a card installed on the same computer that is running the Control
Application.
"Simple" operation occurs when the Service's remote server is disabled. For "net-
work" operation, you may use the Optimod Control Application to set pass-
words at a given OPTIMOD-PC card's host computer to protect it from unauthorized
access from the network. You also need to make your local cards visible to the net-
work by selecting "Allow Network to Access Local Cards" in the "Card and Security
Administration" screen, which is accessible from the Tools drop down menu box.
The setup instructions in Section 2 of this manual provide detailed instructions on
how to do this.
In a Simple or Network environment, the number of OPTIMOD-PC cards that one
host can accommodate depends only on the number of free PCI slots available and
on the speed of the host's CPU. (PCI expansion chassis are supported.) OPTIMOD-PC
cards share IRQs, so availability of IRQs will not usually be a problem.
Although OPTIMOD-PC contains on-board DSP, the host's CPU must still perform
some "housekeeping" chores. It must run Orban's server software, and, more signifi-
cantly, it must do sample rate conversion if OPTIMOD-PC is used as a WAVE device
and the source or destination sample rates are different from 48 kHz. On the other
hand, if only OPTIMOD-PC's analog input and/or AES3 digital I/O are used for input
1-17
INTRODUCTION
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