The N1094A/B DCA-M multiple-channel electrical sampling oscilloscopes are controlled via USB from a PC. The two available models vary in the number of front-panel electrical channel inputs as shown in the following drawings. The N1094A/B option PLK/LOJ oscilloscopes can be used with pattern lock. For installation, safety, and regulatory information, refer to the N109x-series user's guide which can be downloaded from keysight.com.

• To use an N109X-series oscilloscope

When four N1094Bs are connected to an N1000A or DCA-X you have a total of 16 electrical channels. And, if four N1045A-04X mini modules are then installed into the N1000A or DCA-X, you get a total of 32 electrical channels. All of the 32 channels can be displayed at the same time.

These DCA-Ms are controlled using the same FlexDCA user interface that is used to control the DCA-X DCA-X. As a result, DCA-X users will be very familiar with operating the DCA-Ms as well as using remote control. The DCA-Ms use the high-performance elements of both the DCA-X oscilloscope acquisition system and the optical channel of the 86105C module. The DCA-Ms can be configured to perform optical transmitter compliance tests.

N1094A Front Panel

N1094B Front Panel

Key Concepts

• Input signal must meet the following requirements:
• 830 nm to 1600 nm wavelength (multimode or single-mode).
• Symbol rate should be no greater than the selected reference filter. Reference filters are low-pass filters and not bandpass filters. Installed reference filters are listed on the N1092A/B/D's front panel under Filter Rates.
• The Clock In input must meet the following requirements:
• Same symbol rate as the input signal or be a sub-rate clock for proper display of the input signal.
• Triggering occures with any clock between 100 MHz and 32 GHz.
• Trigger setting can be Front Panel or Free Run only.
• Multiple DCA-Ms can be connected to FlexDCA. Delta time values between two channels cannot be compared because each N1094A/B (and DCA-X if connected) uses an independent trigger.
• An DCA-X can simultaineously be connected to FlexDCA.
• Simulated waveforms can be displayed on FlexDCA.
• Use FlexDCA's remote programming commands to configure the N1094A/B.

Aligning waveforms

Because a DCA-M’s acquisition system is independent of the N1000A/86100D, the input waveforms may not align after an Auto Scale. This happens if your are using multiple DCA-Ms or a DCA-M with N1000A/86100D receiver modules. To align the waveforms:

• Use Rapid Eye to align the channels. Rapid Eye is available on all N1000A, DCA-M, and 86100D (FlexDCA version ≥A.06.00) scopes. It is also available on 86100D (FlexDCA version <A.06.00) scopes when the legacy option 500, Productivity Package license is installed. Turn on Rapid Eye and the waveforms will align during an Auto Scale. Rapid Eye is the most convenient way to align the waveforms and maintains very fast throughput. Perform these steps:
1. Click Setup > Acquisition to open the Acquisition Setup dialog.
2. Select Enable Rapid Eye.
3. Select Align Channels During Auto Scale.
• Manually delay the channels. If Rapid Eye is not installed as described above, you can manually add software delay to channels. Although this technique works, acquisition throughput will be reduced. For example, if channels 1A, 2A, and 3A are displayed, add software delay to channels 2A and 3A. The delays are referenced to channel 1A because Auto Scale aligns on the lowest numbered channel that is displayed. To add software delay,
1. Click Auto Scale to autoscale the lowest numbered channel.
2. For the remaining channels:
1. Click Setup > Modules > Channels and select the channel.
2. In the Setup dialog, click Advanced for the channel.
3. Click Software Delay and enter the desired delay.

N1094A/B Front-Panel Indicator Lights

Front Panel Indicator Lights

Indicator	Description
	Displays the FlexDCA extended module slot where the N1092A/B/D is installed. The number indicates the channel, which in this picture would be channel 6A.
	Green Trigger light indicates that the N1090A is being triggered. As with the N1000A or 86100D, this does not indicate that the trigger signal is synchronous with the channel input signal. The trigger must be set to Front Panel and not Module.
	Red Trigger light indicates that the clock input signal is missing.
	Trigger light off indicates that the N1090A channel is turned off or if FlexDCA is in single/stop acquisition mode.
	Trigger armed light. This light is red if FlexDCA is in single/stop acquisition mode.
	Channel indicator light. This light is next to the electrical input connector. When on, the light indicates that the associated FlexDCA channel is turned on and that the waveform is displayed. The light is the same color as the displayed waveform. The Trig'd and Armed indicators do not light unless the channel is turned on.

Remote programs previously developed using the N1000A or 86100D FlexDCA interface can be leveraged directly to control an automated N1094A/B system. Use FlexDCA SCPI programming tools to simplify conversion of legacy 86100-based automation to FlexDCA compatible code.

Calibrations

The following calibrations are available for the N1092A/B/D within FlexDCA. Each is run from within FlexDCA's Calibration dialog.

Vertical Calibration

Allows you to calibrate the N1092A/B/D input channel's vertical response. This calibration is performed without an input signal.

• This calibration is located in the N1094A/B tab on the Calibrations dialog box.

Timebase Calibration

The N1092A/B/D has its own timebase. If multiple N1092A/B/Ds are used or additional timebases are present, calibrations for each timebase will be listed in the Calibrations dialog. The calibration for each N1092A/B/D is clearly labeled by input channel. Other timebases include any 86100D-PTB, 86107A module, or 86108B-PTD modules.

• This calibration is located in the Timebase tab on the Calibrations dialog box

Options

N1094A/B Options

Model/Option Number		Description
N1094A		Dual electrical channel oscilloscope
N1094B		Quad electrical channel oscilloscope
N1094x-030		20 and 30 GHz bandwidth settings
N1094x-050		20, 33, 40 and 50 GHz bandwidth settings
N1094x-LOJ		Low jitter timebase
N1094x-STB		Standard timebase
N1094x-PLK		Pattern lock capability
N1094x-FS1		Fast sampling rate
N1094x-200		Enhanced jitter analysis software, fixed perpetual license 1
N1094x-201		Advanced waveform analysis software, fixed perpetual license
N1094x-300		Advanced amplitude analysis/Rin/Q-Factor, fixed perpetual license 1
N1094x-401		Advanced eye analysis software, fixed perpetual license
N1094x-500		Productivity package, fixed perpetual license
N1094x-9FP		PAM-N analysis software, fixed perpetual license
N1094x-TFP		IEEE TDECQ analysis, fixed perpetual license
N1094x-PLK		Pattern lock trigger hardware
N1094x-EFP		FlexEye independent channel acquisition and control
N1094x-SIM		InfiniiSim-DCA waveform transformation software, fixed perpetual license
N1094x-C0C		Certificate of calibration
N1094x-UK6		Commercial calibration certificate with test data
N1094x-1CM		Single instrument rack mount kit
N1094x-1CN		Dual instrument side-by-side rack mount kit

Available Package Licenses

Option	Description
RND	Research and Development Package license
MFG	Manufacturing Package license