Stage Produkte
Stage Produkte
Stage Produkte


Switches plus Card Readers and Ticketing Systems


ddm hopt+schuler provides complete solutions for switches, card readers and ticket systems. Thanks to our innovative modular structure, a large number of variations are available for you to choose from. Our sales team will be happy to advise you on the product that is right for you and your individual needs, using our intelligent part numbering system, to accommodate your distinctive product design. ddm hopt+schuler products offer our customers a unique advantage as we can customize our solutions to meet your product needs. We hope you put your trust in the competence of our practical experts when making your decision for these products. We look forward to serving you.


POS smart card connector 840-FM

The ddm hopt+schuler smart card connector 840-FM is the perfect for point-of-sale (POS) or mobile-point-of-sale device (mPOS).  Its slim and yet robust design allows to create elegant and long-lasting devices.

Product Information

Our 840-FM smart card connector accepts any smart or chip card according to the ISO format. Integrated into the connector are friction ISO pins, which have been designed to even withstand the more and more common metal cards. Additionally, it is equipped with a card present switch, which signals that the card is now in its correct position and is ready to be read.

The 840-FM smart card connector is also equipped with various options and add-ons, allowing it to be scaled exactly to the needs and requirements of the application. It comes with a start switch, to allow the system to turn-off a nearby RFID antenna, so that the smart card is not accidently read contactless, as it is being inserted into the connector.

In order to discharge any electromagnetic loaded cards (e.g., credit cards), the 840 smart card connector can optionally be equipped with an ESD deflector, which discharges the cards before they hit the ISO8 contact pins. And to prevent damage to the pins through vandalism or falsely inserted cards, a pin contact safety can be inserted into the connector.

For any payment devices it is critical to be successfully certified by the PCI standards. At ddm hopt+schuler we are experts in physical security and we take care of the physical security for you. Our 840 smart card connector goes hand in hand with our pre-evaluated 825 anti-tamper secure cover. The security concept can be scaled exactly to the needs of the device, removing all obstacles on the way to successful certification.

  • 57 x 31.8 x 4 mm (Plastic cover)
  • 57 x 31.8 x 3 mm (Metal cover)
  • SMD connection
  • Integrated pins for additional fixation on PCB
  • Reads ISO8 smart cards
  • Integrated ISO8 pins, designed to withstand metal cards
  • Integrated sealed and water-resistant card present switch
  • Extremely slim design (3mm height)
  • Integrated debris slot for discharging dust and dirt pollution
  • Long-lasting lifetime with 500,000 cycles
Options / variants
  • Start switch to turn-off a nearby RFID antenna
  • ESD-deflector to discharge incoming electromagnetically loaded cards
  • Pin-protection to prevent damage through vandalism or rough metal cards
  • mPOS/POS (please also see our 825 anti-tamper secure cover for PCI certification)
  • Closed-loop micropayments
  • Access control/management
  • Medical card identification
  • General identification via smart cards
  • Together with our 825 anti-tamper secure cover, a PCI certification in regards to the physical security, can be easily achieved with our components and expertise


Do you have questions about our company or our products? Contact us and send us a short description of your request. We are looking forward to your message and will answer it as soon as possible.

Call us
+49 741 26 07-0
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We are at home in the oldest city in Baden-Württemberg, about 90 kilometres south of Stuttgart. Below you can find our contact address and directions.

Opening Hours:

Incoming goods

Monday to Thursday: 07:00 to 12:00 and 13:00 to 17:00

Friday: 07:00 to 12:00 (Delivery until 15:00)

ddm hopt+schuler GmbH & Co. KG
Königsberger Straße 12
78628 Rottweil

Call us
+49 741 26 07-0

In order to guarantee customer proximity and flexibility, we are represented internationally. Contact our sales representatives in your area.

In order to guarantee worldwide availability, we offer you a large number of sales agencies.


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