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November 12, 2025 BY
IN Emerson

Emerson I/O Cards Redundancy

I/O Card Redundancy

Redundant I/O cards are available for critical applications.

The same card can be used in simplex or redundant

applications. When installed on a two-wide redundant terminal

block, the cards are recognized as a redundant pair by the

controller. The controller scans each card and determines which

card is acting as the active interface. When a fault is detected,

the system automatically switches to the standby I/O card.

DeltaV Control modules reference simplex and redundant

I/O channels identically and there is no special configuration

required to take advantage of redundancy.

Switchover of a redundant I/O card is completed within

two scans of the I/O bus. Make-before-break contacts ensure

digital field instruments remain powered and the process

is undisturbed. Analog output signals are briefly driven by

both cards for < 5 ms during switchover of the card.

Hardware Alerts automatically report hardware integrity errors

for both the primary and secondary cards. Any event that

causes a switchover is also reported automatically through the

system hardware alerts and is logged in the Event Chronicle.
November 12, 2025 BY
IN Emerson

Emerson The Traditional I/O subsystem

The Traditional I/O subsystem includes:

• I/O interface carrier (a DIN rail surface mounted)

on which all I/O related components are installed.

• Bulk AC to 24V DC power supply for field devices.

 An I/O interface consisting of an I/O card and an

I/O terminal block.

• A variety of analog and discrete I/O cards enclosed

in a common form factor that easily plugs into the

I/O interface carrier.

• A variety of I/O terminal blocks mounted on the I/O interface

carrier that can be pre-wired before I/O card installation.


The DeltaV system provides control module level time

stamping for log events and alarms. For greater event

resolution, the 16-channel Sequence-of-Events DI card

can provide signal driven events to a resolution of +/- 0.25 ms

per card, or within 1 ms per controller. Please refer to

the Sequence-of-Events PDS for more information on

Sequence-of-Event data collection and system options for this feature.
November 12, 2025 BY
IN Emerson

Emerson DeltaV™ M-series DeltaV system

All I/O cards are enclosed in a common form factor that plugs

into the I/O interface carrier. The housing is clearly labeled with

the enclosed I/O card type. All cards have power and internal

error indicators. Eight-channel cards have clearly visible channel status LEDs.

All cards meet ISA G3 corrosion specifications by the careful

selection of superior electronic components and the use of conformal coating.

Pulse Counters are available on most DI cards. The supported

maximum frequency varies from 0.1 Hz on AC signals to

75 or 120 Hz on 24V DC inputs. For higher pulse counts,

up to 50 KHz, use the Multi-Function card’s high speed pulse input.

The DeltaV system provides control module level time

stamping for log events and alarms. For greater event

resolution, the 16-channel Sequence-of-Events DI card

can provide signal driven events to a resolution of +/- 0.25 ms

per card, or within 1 ms per controller. Please refer to

the Sequence-of-Events PDS for more information on

Sequence-of-Event data collection and system options for this feature.
November 12, 2025 BY
IN Emerson

Emerson DeltaV™ M-series Traditional I/O Car

I/O Cards

A variety of analog and discrete I/O cards are available to meet

your specific requirements. The following cards support simplex

or redundant installation:

• AI 4-20 mA HART 8 channels

• AO-4-20 mA HART 8 channels

• DI, 24V DC Dry Contact, 8 channels

• DO 24V DC High-Side, 8 channels

• AI (Plus) 4-20 mA HART, 16 channels

• AO (Plus) 4-20 mA HART, 16 channels

• DI (Plus) 24V DC, Dry Contact, 32 channels

• DO (Plus) 24V DC, High-Side, 32 channels

The following I/O cards are supported in simplex format

to meet your field wiring needs.

• AI Isolated, 4 channels

• RTD, 8-channels

• Thermocouple, 8 channels

• Millivolt, 8 channels

• DI, High Density, 32 channels

• DI 24V DC Isolated, 8 channels

• Multi-Function, 4 channels (Isolated DI)

• Sequence of Event, 16 channels (DI 24 V DC)

• DI 120V AC Low Side Detection, 8 channels

• DI 120V AC Isolated, 8 channels

• DO 24V DC Isolated, 8 channels

• DO 120/230V AC High-Side, 8 channels

• DO 120/230 Isolated, 8 channels
November 12, 2025 BY
IN Advantest

Advantest U3661 Measurement items

Total Power

For spread spectrum signals used in CDMA or wireless LANs, the total power measurement function is

essential.

This function consists of two modes: a channel mode for measuring the in-band

power specified in the measurement window, and a total power mode for measuring the total power over

the entire measurement span.

1 Hz resolution frequency counter

Simply by adjusting the counter markers according to the spectrum,

the U3661 can display a frequency counter with a minimum resolution of 1 Hz.

This feature is very useful in multicarrier frequency measurements such as mobile radio or CATV systems,

where it is difficult to do so with conventional frequency counters.

Measurement items

– Channel power measurement

– OBW measurement

– ACP (Spectrum Mask) Measurement

– Spurious emission (in-band) measurement
November 12, 2025 BY
IN Advantest

Advantest U3661 Microwave Spectrum Analyzer

Functional Features

– Automatic internal setting of CDMA parameters

– Frequency adjustment settings by channel number

– High-stability CDMA channel power measurement function

– High-sensitivity power measurement with built-in preamplifier

Measurement items

– Channel power measurement

– OBW measurement

– ACP (Spectrum Mask) Measurement

– Spurious emission (in-band) measurement

Total Power

For spread spectrum signals used in CDMA or wireless LANs, the total power measurement function is

essential.

This function consists of two modes: a channel mode for measuring the in-band

power specified in the measurement window, and a total power mode for measuring the total power over

the entire measurement span.

1 Hz resolution frequency counter

Simply by adjusting the counter markers according to the spectrum,

the U3661 can display a frequency counter with a minimum resolution of 1 Hz.

This feature is very useful in multicarrier frequency measurements such as mobile radio or CATV systems,

where it is difficult to do so with conventional frequency counters.
November 12, 2025 BY
IN Advantest

Advantest U3661 Microwave Spectrum Analyzer Functions

Various Measurement Applications Power Measurement Functions

Average power

Digital mobile communication systems use modulation patterns that can handle signals with large

amplitude variations.

Therefore, we have included an average power calculation function that allows power measurement of

signals with amplitude variations.

Multiple Markers

Up to six markers can be set up on a single screen, and a corresponding marker can be assigned to any

frequency.

The multi-tag function automatically detects peaks and displays a list of frequencies sorted by level or

frequency.

The U3661 allows channels to be set for communication systems in major countries.

Most communication systems utilize the FDMA (Frequency Division Multiple Access) method.

When observing signals with the U3661. each carrier band to be measured can be registered in the built-

in table as a user channel.

This makes it possible to call the center frequency by the channel number, thus improving efficiency.

Channel numbers from 1 to 99 can be registered, and two tables are provided. 

For TV broadcast waves, frequencies can be preset according to the VHF, UHF, CATV BS and CS band

names of major countries.

If the CMDA option (OPT 60) is added to the U3661.

the CDMA transmission characteristics specified in the IS-95 and J-STD-008 standards can be measured in

a single operation.
November 12, 2025 BY
IN Advantest

Advantest Q8221 Optical Multifunction Power Meter Options

Options available.

High-resolution measurement.

Displays 0.001 dB/0.0001 dB GPIB output.

Absolute power measurements (dBm) and relative power measurements (dBr) are displayed with 0.001 dB

resolution.

During GPIB output, the data output resolution is 0.0001 dB.

High-speed, high-throughput measurements.

Up to 100 measurements/second

For all sensors, the Q8221 has a sampling rate of 100 times per second and a ranging rate

(time required to move to different ranges) of up to 500 ms (20 ms minimum).

In addition, the ability to transmit GPIB outputs at a high speed of 100 times

per second dramatically increases the throughput of the production line.

Recording Functions, PDL Measurement Functions

The Q8221’s A and B channels can independently store data containing 400 points.

In addition, the stored data can be output directly to an external plotter in the form of a graph.

In addition, the Q8221 displays the maximum value, minimum value,

and the difference between the maximum and minimum values of the measured data, making PDL

measurements with the Q8221 very simple.
November 12, 2025 BY
IN Advantest

Advantest Q8221 Adapters with Minimal Reflection

The sensor is capable of measuring optical inputs up to +27 dBm.

Therefore, it is suitable for measuring the output of fiber-optic amplifiers, pump sources for fiber-optic

amplifiers,and high-output devices (e.g., LDs for optical CATV).

In addition, the Q82227 has a noise level of -80 dBm, so it can be used for measurements requiring a

wide dynamic range.

Low polarization-dependent optical sensor (Q82232): 0.003 dBp-p or lower

The high-sensitivity Q82232 optical sensor has a polarization dependence as low as 0.003 dBp-p.

Used in conjunction with the Q8163 polarization scrambler, it can be used for high-speed, high-precision

PDL measurements of optical devices.

Low Reflection, High Return Loss Sensors

Adapters with Minimal Reflection

If the input light is reflected back, the effect on the system can lead to inaccurate measurements.

the Q82208 optical sensors use optical fibers with beveled polished ends to suppress reflections (return

loss of 50 dB or more). 

the Q82208 is designed for use in optical devices with high speed and high accuracy PDL measurements.

the Q82208 is designed for use in optical devices with high speed and high accuracy.

When using PC-polished connectors, 45 dB or more return loss can be obtained by using a low-loss,

high-return-loss adapter (typical return loss without this adapter is 14 dB).

The sensor is suitable for fibers with core diameters of 10 μm and NA values of 0.19 or less,

making it suitable for measuring dispersion-shifted fibers. FC, SC, ST, MU, LC, and plug-in connectors are

available.
November 12, 2025 BY
IN Advantest

Advantest Q8221 High Sensitivity Sensors

High Sensitivity Sensors

Noise level: -94 dBm.

The Q82208 and Q82232 optical sensors achieve high sensitivity by cooling the InGaAs photodiode.

the Q82208. in particular, achieves -94 dBm. all three types are capable of measuring high power up to

+10 dBm with high linearity.

These sensors meet a wide range of user requirements for polarization correlation, return loss, and sensor

type.

They meet a wide range of measurement requirements.

High Power Input Optical Sensors (Q82227)

Maximum input power: +27 dBmThe Q82227 is suitable for long wavelength, high sensitivity and high

power light.

The sensor is capable of measuring optical inputs up to +27 dBm.

Therefore, it is suitable for measuring the output of fiber-optic amplifiers, pump sources for fiber-optic

amplifiers,and high-output devices (e.g., LDs for optical CATV).

In addition, the Q82227 has a noise level of -80 dBm, so it can be used for measurements requiring a

wide dynamic range.

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