Option 521 Relay Modes | Agilent Technologies 66111A, D, 66311B

General Information - 2

Option 521 Description (Agilent 66309B/D only)

Option 521 consists of the following enhancements to the output capabilities of Agilent models 66309B/66309D:

♦Solid-state relays to connect and disconnect the output of the dc source.

The relays are available on the output and sense terminals of outputs 1 and 2. When the solid state relays are open, the output impedance is effectively raised to about 500k ohms for output 1, and about 200k ohms for output 2. Note that the relays open only in response to an Output OFF command.

♦The ability to either Hot switch or Dry switch the solid state relays.

With Hot switching, the relays control the on/off characteristics of the voltage at the output terminals. With Dry switching, the power mesh controls the on/off characteristics of the voltage at the output terminals. In general, Hot switching activates the relays when current is flowing through them. Dry switching activates the relays when no current is flowing through them. You can specify different relay options for the Output ON and Output OFF commands. The following table describes the actions that occur based on the relay mode selection in response to the ON or OFF commands.

Table 2-5. Option 521 Relay Modes

Relay Mode

Dry (D)

Hot (H)

Output ON

1.Closes the output relay

2.Closes the sense relay

3.Programs the output

1.Programs the power mesh

2.Closes the output relay

3.Closes the sense relay

Output OFF

1.Downprograms the output

2.Opens the sense relay

3.Opens the output relay

1.Opens the sense relay

2.Opens the output relay

3.Downprograms the power mesh

The relay modes are stored in non-volatile memory. The last selected mode will be restored when the unit is turned on. When shipped from the factory, the relay mode for both output 1 and output 2 is set to Output ON Hot, Output OFF Hot (HH). The *RST command has no effect on the relay mode.

NOTES: Even with open sense lead detection enabled, the dc source does not check for open sense leads when output 1 is enabled if the Output ON relay mode is set to Hot.

On output 1 and output 2, with the Output OFF relay mode set to Hot, any external output capacitors will not be downprogrammed or discharged. This is because the output relay opens prior to the downprogramming of the power mesh.

With either output 1 or output 2 disabled, the output voltage readback will not be correct. This is because the sense relay is open, effectively breaking the readback path. The voltage readback will be a small negative number.

Table 2-6. Option 521 Factory Settings

Output Coupling

None

(outputs not coupled)

Output Sense Protection

Output Compensation

Output 1 Relay Mode

Output 2 Relay Mode

Off

High

66111A, 66309B, 66311B, D specifications

Agilent Technologies D,c,83440b is an advanced electronic measurement solution designed for engineers and scientists who require precise and reliable performance in their testing environments. This modular test system offers a comprehensive suite of features that cater to a wide range of applications, from high-frequency testing to complex signal analysis.

One of the main features of the D,c,83440b is its impressive frequency range, allowing users to conduct tests across a wide spectrum of signals. The system is capable of handling frequencies up to 26.5 GHz, making it ideal for RF and microwave applications. This broad range ensures that users can work with a variety of devices, including communication systems, radar, and satellite technology.

In addition to its frequency capabilities, Agilent Technologies has engineered the D,c,83440b with exceptional dynamic range and low noise figures. This ensures that even the smallest signals can be accurately measured, allowing for greater precision in testing. The full spectrum analysis feature enables users to capture transient events and analyze them in real-time, which is crucial for troubleshooting and performance evaluations.

The D,c,83440b is built on a modular platform, allowing users to customize their systems according to specific testing needs. This modularity not only enhances flexibility but also simplifies maintenance and upgrades. Users can easily swap out different modules without the need for extensive system reconfiguration, which can significantly reduce downtime in testing environments.

Another standout characteristic of the D,c,83440b is its user-friendly interface. With a large, high-resolution display and intuitive controls, engineers can quickly navigate through settings and data, streamlining the testing process. This ease of use is complemented by powerful software solutions that can automate test sequences, aiding in efficiency and accuracy.

The integration of advanced digital signal processing technologies further enhances the capabilities of the D,c,83440b. These technologies enable more sophisticated measurements and improved signal integrity, which is essential for modern communication systems.

In summary, the Agilent Technologies D,c,83440b is a multifaceted electronic measurement solution that boasts a wide frequency range, excellent dynamic range, modular design, and user-friendly interface. This combination of features makes it suitable for various applications, ensuring that engineers and scientists have the tools they need to succeed in their testing and measurement endeavors.

Agilent Technologies 66111A Option 521 Description Agilent 66309B/D only, Option 521 Relay Modes

Models: 66111A 66309B 66311B D