Axia DESQ, Инструкция по установке и эксплуатации

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©2012 Axia Audio
Assigning GPIO to a Source
As you’ve seen by studying the previous pages, a lot
of the work of assigning logic to a source is done for you;
once a GPIO port is linked with a Source Profile, all that
remains to do is to solder cables connecting the GPIO’s
DA-15 connectors to the device’s control interface.
So, how do you link a GPIO port with a Source Pro-
file? It’s very easy; let’s do it step-by-step.
Note: This procedure assumes that you have
already defined at least one Source Profile using
the instructions outlined in Chapter 2.
1. Open your Web browser and enter the IP ad-
dress of QOR. Choose
GPIO Configuration
from
menu. Enter your password if prompted (default log-
in is “user”, leave the password field blank).
2. If you haven’t previously assigned any GPIO
ports, the GPIO definitions screen will be blank. No-
tice the status indicators at the top of the page, show-
ing the state of the input and output pins of each port.
The “Logic for” option defines how the port will be
used.
»
LWRP:
The port will only be controlled through
a control protocol. Software packages, as in Path-
finder use the protocol.
»
LIVEWIRE:
Specify a channel number and the
port will follow the logic associated with that
channel (this will be used for CR monitor logic)
»
SPECIFIED INPUT:
Define an input port and
the port will follow the logic of that input.
3. If using the
LIVEWIRE
option, you will need
to specify the Channel Number in the Livewire
Channel column. You can do this by manually en-
tering the number, or browsing the network for an
advertised Livewire channel. When you click on
any list icon, a small popup window will open, enu-
merating all of the audio sources available on the
Livewire network (Figure 5-2). Choose the source
you wish to associate with a GPIO port by clicking
on it; the window will close and the source’s name
and channel number will appear in the Channel box.
If you’re using a local source, specify the input. If a
source profile has been created to control a phone
hybrid using Analog 5 as the input, select Analog 5
in the drop down list. The functions of the GPIO port
will now follow those shown in the Hybrid Logic
Chart.
4. Type a descriptive name in the Name field, and
click on the
Apply
button.
5. The source we’ve been using for this demon-
stration is a telephone hybrid; we can now observe
the pin status indicators change as we turn the chan-
nel on and off, as shown in Figure 5-3.
Figure 5-2: GPIO Select Source popup list
Figure 5-3: Pin status indicators showing
GPIO port activity
Figure 5-1: GPIO Port Assignment