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.


Robust smart card connector 840-0L

The ddm hopt+schuler smart card connector 840-0L is the most robust card reader, designed for heavy duty applications in tough environments – inside and outside. It combines 50 years of experience in card reading technology.

Product Information

The 840-0L smart card connector accepts any smart or chip card according to the ISO format. The smart card connects on the ISO 8 pins via a landing slider which reduces the wear on the pins. The pins themselves are shaped in a half sphere and are additionally secured by a pin protection, making them more robust and allows the connector to be resistant against vandalism. In many cases, smart card connectors are exposed to rough usage through either foreign objects or falsely inserted cards.

Adding to the robustness of the connector, it is equipped with reinforced side walls and a debris slot in the backwall to withstand 500,000 cycles in even challenging environments. The 840-0L smart card connector comes with an integrated ESD deflector, which discharges any electromagnetically loaded cards before they hit the ISO8 pins.

In order to achieve a PCI certification, the 840-0L connector can be combined with our 825 anti-tamper secure cover. We are experts in securing smart card connectors and we take care of the physical security of them for you. Our 840-0L smart card connector and our pre-evaluated 825 anti-tamper secure cover are a synchronized solution together. The security concept can be scaled to exactly match the needs of the payment terminal, removing all obstacles on the way to successful PCI certification.

  • 56.3 x 35.5 x 6.2 mm
  • SMD connection
  • Integrated pins for additional fixation on PCB
  • Reads ISO8 smart cards
  • Integrated half-sphere shaped ISO8 pins, designed to withstand any vandalism
  • Integrated sealed and water-resistant card present switch
  • Extremely robust design with reinforced side walls
  • Integrated debris slot for discharging of dust and dirt pollution
  • Long-lasting lifetime with 500,000 cycles
Options / variants
  • 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)
  • Gas stations
  • Closed-loop micropayments
  • Access control/management
  • Medical card identification
  • General identification via smart cards
  • In combination with the ddm 825 anti-tamper secure cover, a PCI certification in regards to the physical security, is no challenge.


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
four plus equals four
Solve this math question and enter the solution with digits.
E.g. for "two plus four = ?" enter "6".

*Required fields

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.


You are curious on what we are doing? Then please go ahead and sign up for our newsletter.

By clicking the button "Sign up" I agree that ddm hopt+schuler GmbH & Co. KG is allowed to send me regular product information and company news by email. I can withdraw my agreement to ddm hopt+schuler GmbH & Co.KG at any time.