SwitchChannel Class
- Updated2023-02-21
- 5 minute(s) read
SwitchChannel Class
Note: This API is now obsolete.
Encapsulates a channel on a switch device and contains properties and methods that operate on switch channels outside the context of a task. This class also defines the intended use of particular switch channels in tasks.
Inheritance Hierarchy
SystemObject
SystemMarshalByRefObject
NationalInstruments.DAQmxSwitchChannel
SystemMarshalByRefObject
NationalInstruments.DAQmxSwitchChannel
Namespace: NationalInstruments.DAQmx
Assembly: NationalInstruments.DAQmx (in NationalInstruments.DAQmx.dll) Version: 20.7.40.49302
Syntax
[ObsoleteAttribute("This type is obsolete.")] public class SwitchChannel : MarshalByRefObject, IDisposable
<ObsoleteAttribute("This type is obsolete.")> Public Class SwitchChannel Inherits MarshalByRefObject Implements IDisposable
The SwitchChannel type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
 | AnalogBusSharingEnable |
Specifies whether to enable sharing of an analog bus line so that multiple switch devices can connect to it simultaneously. For each device that will share the analog bus line, set this property to to enable sharing on the channel that connects to the analog bus line. Analog bus sharing is disabled by default.
|
| Bandwidth |
Indicates in Hertz the maximum frequency of a signal that can pass through the switch without significant deterioration.
|
| Impedance |
Indicates in ohms the switch impedance. This value is important in the RF domain and should match the impedance of the sources and loads.
|
| MaxACCarryCurrent |
Indicates in amperes the maximum AC current that the device can carry.
|
| MaxACCarryPower |
Indicates in watts the maximum AC power that the device can carry.
|
| MaxACSwitchCurrent |
Indicates in amperes the maximum AC current that the device can switch. This current is always against an RMS voltage level.
|
| MaxACSwitchPower |
Indicates in watts the maximum AC power that the device can switch.
|
| MaxACVoltage |
Indicates in volts the maximum AC RMS voltage that the device can switch.
|
| MaxDCCarryCurrent |
Indicates in amperes the maximum DC current that the device can carry.
|
| MaxDCCarryPower |
Indicates in watts the maximum DC power that the device can carry.
|
| MaxDCSwitchCurrent |
Indicates in amperes the maximum DC current that the device can switch. This current is always against a DC voltage level.
|
| MaxDCSwitchPower |
Indicates in watts the maximum DC power that the device can switch.
|
| MaxDCVoltage |
Indicates in volts the maximum DC voltage that the device can switch.
|
| Usage |
Specifies how you can use the channel. Using this property acts as a safety mechanism to prevent you from connecting two source channels, for example.
|
| WireMode |
Indicates the number of wires that the channel switches.
|
Methods
| Name | Description | |
|---|---|---|
 | CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
| Dispose | Releases all resources used by SwitchChannel. |
 | Dispose(Boolean) |
Releases the managed and unmanaged resources used by SwitchChannel or optionally releases only the unmanaged resources.
|
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
| ToString | Returns a string representation of the object. (Overrides ObjectToString.) |
Remarks
Use the LoadSwitchChannel(String) method on the Local instance of DaqSystem to create an instance of this class for a switch channel on your system.
 Tip |
|---|
| Example applications are located in the Public Documents\National Instruments\NI-DAQ\Examples\DotNET4.x directory or in the Start menu at National InstrumentsNI-DAQmxNI-DAQmx Examples. |
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.