M.2-QUAD 4 and 8 Channel Quadrature Encoder Input Products
4 or 8 32-bit Counters supporting Quadrature x1 and x4 modes
Features
- 2260/2280 sized M.2 Card with B & M keys and latching I/O connectors
- Direct Interface to Four or Eight Quadrature Encoders (A, B & Index (Z))
- Single-Ended Or Differential 3V or 5V Encoder Inputs
- 32-Bit Counters; Count Modes Include Quadrature (x1, x2, x4), Free-Run, NonQuadrature,(Up/Down), Non-Recycle, Modulo-N, and Range Limit
- Selectable Clock Source (10MHz, 20MHz & 40MHz) (For Digital Filtering On Inputs)
- Interrupt Generation From Various Status Changes
- Select Flags for Interrupt Source (Instantaneous Or Latched)
- Panel-Mountable DB-37F Four Channel Module
- Two Modules Daisy-Chainable for Eight Quadrature Inputs (Two DB-37F Connectors)
- 9” Cable(s) (228mm) Connect Between Quad Module(S) and mPCIe Card
- Available in Industrial Temperature Operation (-40°C To +85°C), RoHS Standard
- Also available in mPCIe form!
- Designed, made, supported, and manufactured in the USA
- Support for Wind River VxWorks (call for ordering information)
Price range: $479.00 through $779.00
In StockDescription
The M.2-QUAD-8 consists of a 2260/2280 sized M.2 Card with B & M keys and latching I/O connectors that connects to two DB-37F Modules via included 9” cables.
The M.2-QUAD-4 consists of a 2260/2280 sized M.2 Card with B & M keys and latching I/O connectors that connects to one DB-37F Module via an included 9” cable.
The modules are designed to be easily panel-mounted in any application environment, and have convenient mounting holes for non-panel-mount applications. Up to eight differential (or single-ended) encoders (each with A, B, and Index) can be monitored simultaneously.
Type ISL32173 differential input circuits provide compatibility with a wide variety of quadrature encoder outputs.
The LSI/CSI LS7766 features:
- 32-bit quadrature counters support x1, x2, and x4 counting modes, or can be used as non-quadrature up/down counters
- Quadrature frequencies up to 9.6MHz
- 4.5MHz when powered with 3.3VDC
- Non-quadrature frequencies up to 40MHz when powered with 5VDC
- 20MHz when powered with 3.3VDC
- Quadrature frequencies up to 9.6MHz
- Programmable index and marker flags (carry, borrow, sign & compare)
- Enable/disable sources generating IRQ’s
- Programmable count modes:
- Normal (free-run) / Modulo-N / Range Limit / Non-Recycle, Binary / BCD
The M.2-QUAD products are well suited for use in industrial and embedded environments and factory locations.
Accessories and Connections
| Available accessories include | |
|---|---|
| ADAP37M | 37-pin Screw Terminal Board (direct plug-in) |
| STB-37 | 37-pin Screw Terminal Board (needs male-female ribbon cable) |
| mPCIe-HDW-KIT2 | Mounting hardware for 2mm |
| mPCIe-HDW-KIT2.5 | Mounting hardware for 2.5mm |
SOFTWARE
The card is supported for use in most operating systems and includes a free DOS, Linux (including macOS) and Windows compatible software package. This package contains sample programs and source code in C#, Visual Basic, Delphi, and Visual C++ for Windows. Also provided is a graphical setup program in Windows. Linux support includes installation files and basic samples for programming from user level via an open source kernel driver. Third party support includes a Windows standard DLL interface usable from the most popular application programs, and includes LabVIEW VIs. Embedded OS support includes the family of Windows Operating Systems including IoT. Full register-level documentation of all features ensures easy compatibility in any application environment.
mPCIe MCOTS (modified-COTS) Customization
ACCES can modify or create mPCIe products with alternate I/O configurations, analog ranges, connectors, mechanical adjustments, conformal coating, isolated options, timing modifications, or firmware changes. Ideal for defense, UAVs, robotics, and OEM embedded systems needing fast-turn, small-form-factor MCOTS customization.
Downloads
Data Sheets
Manuals
Software
- M.2- and mPCIe-QUAD-4 & 8 Software Package ( -- Last Uploaded 2025-05-07)
Drivers and Downloads
Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents
Information about our Free Software packages:
ACCES is proud to provide a full suite of software support with every Data Acquisition product. We are committed to supporting the most popular operating systems and platforms for our customers. Currently we are actively supporting 7 -> 11, both 32 & 64 bit, including “Server 2008,” “Embedded,” and “Compact” flavors for all plug-and-play products including PCI, PCI Express, USB, and more. Many products continue to ship with support for additional operating systems such as DOS, Windows 95, 98, Me, NT4, 2000, and XP.
Samples
Among the software we deliver with our products are sample programs in a wide variety of programming languages. These samples are used to demonstrate the software interfaces to our products — and many can be used as-is in your production environments, or to test functionality of the devices out-of-the-box. We’re currently actively supporting sample programs in Microsoft Visual C#, and Delphi, with many devices including samples in Visual Basic (5 and .NET), Visual C/C++, and Borland C/C++ 3.1 for DOS. Additionally we provide National Instruments LabVIEW compatible DLLs and many demonstration VIs for our devices.
Drivers
Drivers for various operating systems are also provided, including active support for Windows 7 -> 11 — all in both 32-bit and 64-bit flavors, and including consumer, server, and embedded varieties — as well as the 2.6 and newer Linux kernels and recent OSX / macOS versions. Many products continue to ship with driver support for Windows 95, 98, Me, NT4, Windows 2000, XP, and more, but support for these operating systems is considered deprecated.
Setup Programs and Utilities
Our Data Acquisition devices also include a graphical setup utility that walks you through the process of configuring any option jumpers or switches on the device, as well as explaining a little about the various connectors present.
Many devices also include utility programs – little tools to make your use of the device easier, such as EWriter, a program that allows you to read and write data in the user-accessible EEPROM locations on all our USB data acquisition products; or WinRISC, a “Really Incredibly Simple Communications” terminal program that lets you get started instantly with serial devices.
“Register Level” Documentation
Besides all this software in all these languages and operating systems ACCES has a policy of open and transparent development: none of our lowest-level “register” interfaces are hidden from you — we document every register in every bus card, every command in every serial board, and every usb control transfer in every USB Data Acquisition board. These lowest-level interfaces allow you to develop for our products in ANY operating system or language, regardless of our actively supporting it or having a driver for it. We have customers actively developing in ADA, Android, Python, Java, MATLAB, Solaris, and more, just by referring to our complete low-level interface documentation! And we provide the full source code to all of our drivers, regardless of operating system, to give you an even bigger head start in your own development tasks.
No Fees or Royalties
All of this software is provided at no additional charge, and is licensed under any of a variety of flexible — and royalty free — options. Check out our software license explanation if you’d like more information.
Custom Software
ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.
Further information about available ACCES Software:
Redistributing Windows Drivers
A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.
aioWDM.VxWorks
ACCES has successfully partnered with Wind River to bring our entire line of PCI and PCI Express DAQ cards to VxWorks 7!
VxWorks 7 VxBus Gen 2 drivers, with easy-to-use API-libraries, are available for this product, including full source and sample code.
Designed to be compatible with our AIOWDM.dll Windows driver & API, this kernel module adds zero% CPU-cycle overhead to your VxWorks runtimes while allowing the lowest-latency hardware register access possible.
You can find more information about our VxWorks libraries and services on our Wind River Silver Partner page.
PC Interface
- 2260/2280 sized M.2 Card with B & M keys and latching I/O connectors
Quadrature Inputs
- Receiver Type: ISL32173
- Configuration: Phase A, B, and Index; Single Ended or Differential
- Channels: 8 or 4
- Common mode: -7V to 12V
- Differential Inputs: -9v to 13V
- Sensitivity: ±200mV
- Hysteresis: 30mV typical
- Impedance: Internal 48kω minimum
Environmental
- Operating Temperature: 0°C to 70°C (order “-T” for -40°C to +85°C)
- Storage Temperature: -40°C to 85°C
- Humidity: 5% to 95%, non-condensing
- Power required:
+3.3VDC @ 430mA using self power (+ encoder power)
+5.0VDC @ 165mA with external power (+ encoder power)
Physical
M.2 card characteristics
- Weight: 5.8 grams (plus 22.2g for the cable)
- Length: 80mm with breakaway to shorten to 60mm
- Width: 22mm
QUAD daughter card characteristics
- Weight: 45 grams (+ 11.8 grams for the 9″ cable)
- Size: length: 2.835″ (72.01mm); width: 2.362″ (59.99mm)
- I/O connector:
– On-module Female D-Sub Miniature 37-pin;
– Mating: Male, D-Sub Miniature 37-pin
Regulatory Compliance
- This product is designed to be in full compliance with CE requirements.
| Model | Description | Price (USD) | |
|---|---|---|---|
| M.2-QUAD-4 | 4-Channel Quadrature Input M.2 | $479.00 | |
| M.2-QUAD-8 | 8-Channel Quadrature Input M.2 | $779.00 |
| Accessories | ||
|---|---|---|
| mPCIe-HDW-KIT2 | 2mm mounting hardware $1 | |
| mPCIe-HDW-KIT2.5 | 2.5mm mounting hardware $1 | |
| ADAP37M-MINI | Direct connect screw terminal adapter for use with 37-pin female connector $40 | |
| STB-37 | DIN-rail mountable screw terminal board for 37-pin connector $39 | |
| CAB37-18 | Ribbon cable, female 37-pin connectors on each end, 18″ $25 | |
| Model Options (call for pricing) | ||
| -T | Extended temperature operation (-40° to +85°C) | |