• NISWITCH_ATTRIBUTE_MAX_SWITCHING_DC_CURRENT
• NISWITCH_ATTRIBUTE_CHARACTERISTIC_IMPEDANCE
• NISWITCH_ATTRIBUTE_MAX_CARRY_AC_POWER
• NISWITCH_ATTRIBUTE_IS_DEBOUNCED
• NISWITCH_ATTRIBUTE_MAX_CARRY_DC_CURRENT
• NISWITCH_ATTRIBUTE_BANDWIDTH
• NISWITCH_ATTRIBUTE_POWER_DOWN_LATCHING_RELAYS_AFTER_DEBOUNCE
• NISWITCH_ATTRIBUTE_TEMPERATURE
• NISWITCH_ATTRIBUTE_MAX_AC_VOLTAGE
• NISWITCH_ATTRIBUTE_MAX_CARRY_AC_CURRENT
• NISWITCH_ATTRIBUTE_SETTLING_TIME
• NISWITCH_ATTRIBUTE_MAX_DC_VOLTAGE
• NISWITCH_ATTRIBUTE_SERIAL_NUMBER
• NISWITCH_ATTRIBUTE_WIRE_MODE
• NISWITCH_ATTRIBUTE_MAX_SWITCHING_AC_CURRENT
• NISWITCH_ATTRIBUTE_MAX_SWITCHING_AC_POWER
• NISWITCH_ATTRIBUTE_MAX_CARRY_DC_POWER
• NISWITCH_ATTRIBUTE_NUMBER_OF_RELAYS
• NISWITCH_ATTRIBUTE_MAX_SWITCHING_DC_POWER

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250005	ViReal64	RO	N/A	None	None

This channel-based attribute returns the bandwidth for the channel. The units are hertz.

• Bandwidth and Insertion Loss
• niSwitch Properties
• RF Switching Considerations

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250016	ViReal64	RO	N/A	None	None

This channel-based attribute returns the characteristic impedance for the channel. The units are ohms.

• Characteristic Impedance
• niSwitch Properties
• RF Switching Considerations

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250002	ViBoolean	RO	N/A	None	None

This attribute indicates whether the entire switch has settled since the last switching command. A value of VI_TRUE indicates that all signals going through the switch are valid.

VI_TRUE

VI_FALSE

• Electromechanical Relays
• niSwitch Properties
• Settling Time

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250007	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum AC voltage the channel can switch. The units are volts RMS.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250011	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum AC current the channel can carry. The units are amperes RMS.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250015	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum AC power the channel can carry. The units are volt-amperes.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250010	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum DC current the channel can carry. The units are amperes.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250014	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum DC power the channel can carry. The units are watts.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250006	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum DC voltage the channel can switch. The units are volts.

• General Switching Considerations
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250009	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum AC current the channel can switch. The units are amperes RMS.

• niSwitch Properties
• Switching Current

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250013	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum AC power the channel can switch. The units are volt-amperes.

• niSwitch Properties
• Switching Power

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250008	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum DC current the channel can switch. The units are amperes.

• niSwitch Properties
• Switching Current

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250012	ViReal64	RO	N/A	None	None

This channel-based attribute returns the maximum DC power the channel can switch. The units are watts.

• niSwitch Properties
• Switching Power

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1150014	ViInt32	RO	N/A	None	None

This attribute returns the number of relays.

• niSwitch Get Relay Name
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1150017	ViBoolean	R/W	N/A	None	None

This attribute indicates whether to power down latching relays after calling Wait For Debounce. When Power Down Latching Relays After Debounce is enabled (VI_TRUE), a call to Wait For Debounce ensures that the relays are settled and the latching relays are powered down.

VI_TRUE

VI_FALSE

• Armature Relays
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1150015	ViString	RO	N/A	None	None

This read-only attribute returns the serial number for the switch controlled by NI-SWITCH. If the device does not return a serial number, NI-SWITCH returns the Invalid Attribute error.

• Characteristic Impedance
• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250004	ViReal64	R/W	N/A	None	None

This channel-based attribute returns the maximum length of time from after you make a connection until the signal flowing through the channel settles). The units are seconds.

	Note  PXI-2501/2503/2565/2590/2591 Users—the actual delay will always be the greater value of the settling time and the value you specify as the scan delay.

• niSwitch Properties
• Settling Time

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1150019	ViReal64	RO	N/A	None	None

This attribute returns the temperature for the switch module. The units are degrees Celsius.

• niSwitch Properties

Numeric Value	Data type	Access	Applies to	Coercion	High Level Functions
1250017	ViInt32	RO	N/A	None	None

This attribute returns the wire mode of the switch. This attribute affects the values of the NISWITCH_ATTRIBUTE_NUM_OF_ROWS and NISWITCH_ATTRIBUTE_NUM_OF_COLUMNS attributes. The actual number of input and output lines on the switch is fixed, but the number of channels depends on how many lines constitute each channel.

• N-Wire Switching Modes
• niSwitch Properties