RS20N-3 (MDR102) 2-Port Smart-Card Reader.

How to Order

HSL secure multi-domain smart card reader (MDR) enables the use of one smart card to login to multiple computers simultaneously.

User authentication devices are an essential security function in many organizations. Unauthorized access to the organization information system is a serious threat.
As many organizations are forced to isolate their classified and non-classified networks to prevent data leakages, users are forced to authenticate in front of more than one computer. In many high security organizations the user may need to access four different computers simultaneously at his/her desktop to handle daily tasks.

HSL designed the Secure Multi-Domain Smart-Card Reader (MDR) technology to provide a simple and yet secure solution to this common scenario.

HSL MDR 2 port device interfaces with 2 computers thorough USB cables and enables a single user smart-card to securely and simultaneously authenticate in front of 2 isolated computers.

The user just uses the reader and card to authenticate as needed and leaves the card in the reader. Once the card is pulled out all authentication sessions are immediately disconnected.

The MDR is fully isolated internally to prevent any potential data leakage between the coupled computers through the reader. It is also equipped with active anti-tampering system to prevent physical tampering.

System Diagram

  • Unique in the market:
    The only smart-card reader available today that can interface with multiple isolated computers. Based on unique technology and patents

  • Compatibility: 
    The MDR design relies on Identive (formally SCM) readers. It is by far the Industry's most popular and compatible smart-card reader. Product supported by most OS in use today
  • All firmware is in ROM (Read Only Memory)
  • Cost effective:
    This product was designed to provide an affordable solution for agencies and organizations. Product cost can be easily justifiable once compared with issuing and maintaining multiple cards for each user

  • Ease of use:
    The MDR automatically switches between channels. The user needs minimal training in the device operation

  • Active anti tampering: 
    Always-on active anti-tampering with 10 years battery life cycle. Special holographic tampering evident labels

  • Tamper Evident Label:
    Providing clear visual indication of product was tampered or opened in any way

  • Highest security by design:
    The only smart-card reader that designed from early stages to support high security isolation applications

RS20N-3 (MDR102)

No. of Computers


MDR Ports

2  x USB Type-A to connect to computers,
1m long cable for each

1 x DC Power supply jack

Controls and indications

2 x Blue LEDs to indicate active channel

2 x Red LEDs to indicate  tampering attempt or failure to read card

Sound transducer to provide user warnings
(65dB maximum)

Smart-Card Reader Characteristics

Supports ISO7816 Class A and AB Smartcards

T=1, T=0 protocol support

Communication speed up to 344,105 bps (PPS, FI parameter)

Frequency up to 12 MHz (PPS, DI parameter)

Connector with sliding 8-contacts designed for 150,000 insertions

Driver and OS Compatibility

CCID compliant & PC/SC Compatible Reader

Supports All Operating Systems: Windows® OS, XP version and above, Linux, Mac OS

Security Features

No shared circuitry across channels other than the user card. Each channel uses its own card reader circuitry

Power sub-system is divided and fully protected from power signaling attacks

Secure card removal massaging function with backup circuitry

Audible warning if card is inserted and no active session available for more than 60 seconds

Audible warning if card is partially inserted for more than 15 seconds

Audible and visible indications if device was tampered

Advanced active anti-tampering system with back-up battery to detect physical intrusion attempts

Permanently disables the device if tampering detected, erases keys and log events in crypto memory

Holographic Tampering-Evident Labels to detect enclosure tampering

Sealed plastic design to prevent physical tampering

Computer Ports

USB Type B ports


175 (W) x 60 (D) x 33 (H) mm / 7 (W) x 2.5 (D) x 1.34 (H) inches


0.5 Kg (1.1 lbs.)


Wall-mounted power supply 12VDC, 5W maximum

Power Type


Operating Temperature

- 0ºC to 40ºC (32ºF to 104ºF)

Storage Temperature

-20ºC to 60ºC (-4ºF to 140ºF)


Operating - 20 to 80% non-condensing; Storage – 10 to 90% non-condensing


0 to 10,000 ft


CE, UL and cUL, Safety BSEN60950 / EN60950

Product life-cycle

10 years


2 Years

  Presentations File Size Date
MDR Presentation

MDR Presentation

2 MB 16 Sep, 2015

  Specification Sheets File Size Date
MDR Datasheet

MDR Datasheet

580 KB 16 Sep, 2015

  Quick Start Guides File Size Date
MDR Quick Configuration Guide

MDR Quick Configuration Guide

434 KB 16 Sep, 2015

RS20N-3 (MDR102) - 2-port Multi-Domain smart-card reader, USB                


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