DBC Network Bridge

5 Advanced Operation

Control Port Window: Analog Inputs Section (AIN 1-8)

Find the Analog Inputs section (Figure 5.13) in the Control Port win- dow. It has a status indicator and level meter for each input channel.

The Control Port analog inputs allow a 0 to +10 VDC signal to be input to allow remote control of continuously variable objects such as faders or fil- ter frequencies. They can also be used to control switched objects (just like the Digital Inputs). When the Edit button associated with a particular input is pressed, the Control Port Assignment Dialog box appears and allows programming of the input just as was discussed for the Digital Inputs. These inputs can be used to sense the presence of an analog input signal level, such as ordinary 10 kilohm linear potentiometers for level control (Figure 5.14). Analog inputs can alternately be set to sense simple contact closure.

Control Port Window: Analog Outputs Section

Find the Analog Outputs section (Figure 5.15) in the Control Port window.

In addition to the eight Digital Outputs, there are eight Analog Outputs that can be used to provide an output voltage (0 to +10V DC for control). These outputs can reflect a particular analog object such as a fader, or a switched object and, can be used to provide drive for such things as lighting con- trols or for a standard digital type output.

The settings are remembered in a Preset, so they can be used to change the voltage of a particular output based upon Preset.

There are one indicator and six controls for each output.

1.Pin State Indicator: indicates the logical 'Pin-High' or 'Pin-Low' sta- tus of the actual hardware output.

2.Manual: directly controls the binary output state of the corresponding pin when in Manual mode.

3.Polarity: changes the polarity of the analog output regardless of the pin control mode.

4.Reflect Manual: causes the output to directly reflect the state of its Manual control.

5.Reflect Binary: causes the digital output to reflect the state of the selected binary object within the DBC Network Bridge. Only a single object may be specified.

6.Reflect Slider: causes the analog output to reflect the setting of the slider control associated with the output.

7.Reflect dB: causes the analog output to reflect the status of the selected dB object. Only a single dB object may be specified.

Figure 5.13 Analog Inputs Section

of the Control-Port Window

1

2

3

4

5

6

7

Figure 5.14 Sample Control-Port Analog Input Circuit

Ascrew-terminal board with barrier-block to DB37M connections makes it easy to interface external circuitry to the Control Port. Measurement Computing™ Corp. offers a suitable screw-terminal board (part number CIO-MINI37), along with an enclosure (part number ENCMINI37) for this use.

Contact Measurement Computing Corp. at www.measurementcomputing.com or (508) 946-5100.

Figure 5.15 Analog Outputs Section of the Control-Port Window

Operation Manual

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Crown 137769-3 operation manual Control Port Window Analog Inputs Section AIN, Control Port Window Analog Outputs Section
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137769-3 specifications

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