Crown Audio DBC Network Bridge - Manual (Page 49)

DBC Network Bridge
Operation Manual page 49
Control Port Window: Digital Inputs
The Digital Inputs are high or low only. They are current driven and will accept +5V or +10V
inputs (+25VDC max), and are well suited for sensing contact closure (Figure 5.6). They
switch at approximately +1 VDC. They can be used to control one or more objects with the
DBC Network Bridge. The Control Port digital inputs can be used to sense logic 'high' or
'low' signals to control many of the features of the DBC Network Bridge.
Find the Digital Inputs section (Figure 5.5) in the Control Port window. Its features are
described below.
1. Pin State Indicator
This shows the actual status of the hardware input as it comes into the rear panel connector.
2. Edit Buttons
Pressing one of these buttons opens the Control Port Assignment Dialog box, explained
later.
3. Pin
This number reflects the physical pin number of the DB37 connector on the rear of the unit.
4. Edit Mapped Conditions
Pressing this button opens the Condition Logic Setup window, described later.
Control Port Assignment Dialog
In the Control Port window, find the Digital Inputs section (Figure 5.7). When the Edit
Button is pressed on a Digital Input, the Control Port Assignment Dialog box (Figure
5.8) opens to assist in setup of the input. It is described below and on the next page.
1. Control Port Object
This field displays the currently selected object or device, such as Digital Input 1 - Pin12.
2. Controls
The control buttons let you select which type of controls you want to display: Any, dB, or log-
ical.
3. Named
You can enter text here to narrow the search for controls.
4. Controls List
This field displays a list of processes that can be applied to the object. Once the desired con-
trol has been found in the Controls List, highlight it and press the Add button (5).
5 Advanced Operation
Figure 5.7 Control Port Assignment Dialog Window
1
2
3
4
5
6
7
8 9
10
11
12
Figure 5.5 Digital Input Section in the Control Port Window
Figure 5.6 Sample
Control-Port Digital
Input Circuit