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IEI PM-1028-8

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8-Port RS-232 PC/104 Module equipped with two 40-pin to 4 standard DB-9 connector

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Single Board Computers



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SBC SBC PC/104 4-port RS-232/422/485 Module PM-1004 PC/104 4/8-Port RS-232 Module PM-1028 IEI Communication Module PM-1028 PM-1004 Ship with 4-port RS-232/422/485 SPECIFICATIONS connection cable P/N: 32200-026800 Ship with 4-port RS-232 connection cable P/N: 32200-025400 PC/104 form factor SPECIFICATIONS 16C554 UART Controller 4 x RS-232/422/485 PC/104 form factor Supports shared IRQ or independent IRQ mode 16C554 UART Controller Jumper selectable interrupt level Supports shared IRQ or independent IRQ mode MAX. baud rate: 921.6kb/s Interrupt vector addressing setting Support O.S: Windows NT/2000/XP, Linux and windows Jumper selectable interrupt level CE.NET COM port base I/O addressing setting MAX. baud rate: 921.6kb/s RS-422 & RS-485 Supports O.S: Windows NT/2000/XP, Linux and windows CE.NET The RS-422 standard allows only one differential way communicational mode, using a twisted media pair. The maximum data rate, not implemented at max cable length, is 10Mbps and its max cable length is 1200 meters. Each driver can drive up to 10 receivers. The RS-485 is basically an update of the RS-422 specification Features: for multipoint buses to be constructed. This standard meets and improves all the requirements of the RS-422, allowing up to 32 4/8 independent COM channels drivers and 32 receivers in addition, which can be connected to Two 16C554-compatible quad UARTs a single bus. 128-byte TX and RX receive FIFOs Programmable serial interface characteristics for each iEi’s PM-1004 serial port communication module offers 4 channel independent RS-232/422/485 serial ports for connecting data acquisition equipment and many other serial devices to the PC Shared interrupt capability with ID register and its compatible system. It provides a reliable communication link over a longer distance and optional surge protection make it suitable for industrial environments. Connections with point-to- point full-duplex or multidrop half-duplex are available to meet user’s various needs. ORDERING INFORMATION ORDERING INFORMATION PM-1028-4 PC/104 4-Port RS-232 module equipped with PM-1004 one 40-pin to 4 standard DB-9 connector PC/104 4-port RS-232/422/485 module equipped PM-1028-8 PC/104 8-Port RS-232 module equipped with with one 40-pin to 4 standard DB-9 connector & one two 40-pin to 4 standard DB-9 connector 16-pin to 4 standard RS-422/485 DB-9 connector 3-81 3-82

Frequently asked questions

Why do business with IEI Boards?

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IEI Boards' parent company, GID Industrial, specializes in procuring industrial parts. We are able to find rare and obsolete equipment that our customers need so they can get back to business. We know you have many options when it comes to making your purchase, and we appreciate the opportunity to show your our commitment to quality.

Will there be a warranty for the PM-1028-8?

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The warranty we offer will be based on what we negotiate with our suppliers. There are some situations where a part is sold without a warranty. Since we specialize in single board computers, they usually receive a one-year warranty.

Which companies are available as carriers?

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We use FedEx, UPS, DHL, and USPS. We usually ship on our own accounts, but if you would like to provide us with your own, we can do that, as well. We are not limited to those, however, and can use other carriers at your request.

I don't live in the USA. Will IEI Boards work with me?

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IEI Boards will definitely serve you. We do a lot of business with customers outside the USA, and we regularly ship to buyers across the globe as a result.

Will IEI Boards accept my preferred method of payment?

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Visa, MasterCard, Discover, and American Express are all accepted by IEI Boards. You can also pay with a wire transfer or PayPal. If you're in the USA, you can send a check. We may, upon approval, be able to offer terms for larger orders.

Why buy from GID?



We are industry veterans who take pride in our work



Avoid the dangers of risky trading in the gray market



Our network of suppliers is ready and at your disposal



Maintain legacy systems to prevent costly downtime



Time is of the essence, and we are respectful of yours

What they say about us


star star star star star

One of our top priorities is maintaining our business with precision, and we are constantly looking for affiliates that can help us achieve our goal. With the aid of GID Industrial, our obsolete product management has never been more efficient. They have been a great resource to our company, and have quickly become a go-to supplier on our list!

Bucher Emhart Glass


star star star star star

With our strict fundamentals and high expectations, we were surprised when we came across GID Industrial and their competitive pricing. When we approached them with our issue, they were incredibly confident in being able to provide us with a seamless solution at the best price for us. GID Industrial quickly understood our needs and provided us with excellent service, as well as fully tested product to ensure what we received would be the right fit for our company.



star star star star star

Our company provides services to aid in the manufacture of technological products, such as semiconductors and flat panel displays, and often searching for distributors of obsolete product we require can waste time and money. Finding GID Industrial proved to be a great asset to our company, with cost effective solutions and superior knowledge on all of their materials, it’d be hard to find a better provider of obsolete or hard to find products.

Applied Materials


star star star star star

Over the years, the equipment used in our company becomes discontinued, but they’re still of great use to us and our customers. Once these products are no longer available through the manufacturer, finding a reliable, quick supplier is a necessity, and luckily for us, GID Industrial has provided the most trustworthy, quality solutions to our obsolete component needs.

Nidec Vamco


star star star star star

This company has been a terrific help to us (I work for Trican Well Service) in sourcing the Micron Ram Memory we needed for our Siemens computers. Great service! And great pricing! I know when the product is shipping and when it will arrive, all the way through the ordering process.

Trican Well Service


star star star star star

When I can't find an obsolete part, I first call GID and they'll come up with my parts every time. Great customer service and follow up as well. Scott emails me from time to time to touch base and see if we're having trouble finding something.....which is often with our 25 yr old equipment.

ConAgra Foods

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