SecureBox SDS2101

SecureBox family of device servers offers the most secure way to add formerly isolated electronic equipment to the Ethernet network.

Lantronix Securebox SDS2101

Secure Network Encryption Device Servers

  • Securely network-enable serial devices with 128-256 bit AES-certified encryption
  • Transparent communications – no need to develop special software
  • Two RS-232 DTE serial ports pinned the same as PC for easy connection
  • 10/100 Ethernet Interface

SecureBox SDS2101

Related Products

SecureBox SDS2101 Overview

The Most Secure Way to Connect, Monitor, Manage and Control Devices Over a Network or the Internet

The SecureBox family of device servers offers the most secure way to add formerly isolated electronic equipment to the Ethernet network. With this capability, virtually any device with a serial port can be remotely accessed and controlled securely over the network or the Internet. This adds an unprecedented level of flexibility and efficiency to your business, and breathes new life into your existing equipment.

With the proliferation of information in today’s electronic world, businesses are more concerned than ever about protecting data from unwanted intrusion as it is transferred over a network or the Internet. SecureBox device servers feature the most robust security available on the market with a National Institute of Standards and Technology (NIST) certified implementation of 128-256 bit AES (Advanced Encryption Standards; Rijndael) as specified by FIPS-197 (Federal Information Processing Standards).

Easy to install and implement, SecureBox device servers are ideal for commercial applications where secure data communications are essential, medical facilities, government agencies and financial institutions. Using a method called serial tunneling, SecureBox encrypts and encapsulates serial data into packets and transports it over Ethernet. Using two device servers connected by a network, secure virtual serial connections can be extended across a facility or around the world.

The Lantronix approach to secure communications is transparent to your attached devices and software. There is no need to change the way you work or develop special software to encrypt/decrypt information over the network. The Windows-based configuration software, user-friendly web interface and on-line help simplify and streamline the set-up process. SecureBox can also be set up locally through its serial port, or remotely over a network using Telnet or a web browser. For added security, the web interface can be disabled.

SecureBox device servers can be used as a faster, less expensive and more reliable alternative to dial-up modems. In modem emulation mode, the unit accepts modem AT commands on the serial port and establishes a secure network connection to the end device, eliminating the need for dedicated modems and phone lines.

Available in single port (SDS1101) or dual port (SDS2101) configurations, SecureBox can also work with Lantronix’s Secure Com Port Redirector (SCPR) software to extend the functionality of COM port-based Windows® applications across Ethernet. SCPR creates encrypted virtual COM port connections to transport data to a remote SecureBox over the network or the Internet. This provides secure access and control of COM port-based applications from anywhere, at any time.

Built to expand as your needs grow, SecureBox’s Flash memory provides maintenance-free, non-volatile web page storage and facilitates easy future system upgrades. If you’re looking for the most cost-effective and scalable solution for securely network-enabling your equipment, look no further than SecureBox.

SecureBox SDS2101 Tech Specs

    Serial Interface

    • Interface: Software-selectable RS232, RS422 or RS485 (2 and 4 wire support)
    • Connectors: 2 DB9M DTE serial ports
    • Data Rates: Software-selectable baud rate from 300 to 921 KBaud
    • Characters: 7 or 8 data bits
    • Parity: odd, even, none
    • Stop Bits: 1 or 2 Control
    • Signals: CTS/RTS (Hardware)
    • Flow Control: XON/XOFF (Software)
    • Data Encryption: 128-256 Bit AES encryption, NIST AES Cert #120

    Network Interface

    • Interface: 10Base-T/100Base-TX Ethernet port
    • Software selectable Ethernet speed 10/100/Auto
    • Software selectable Half/Full/Auto duplex
    • Connectors: RJ45
    • Standards: ARP, UDP, TCP, ICMP, Telnet, TFTP, AutoIP, DHCP, HTTP, SNMP and RFC2217

    Indicators (LED)

    Power (blue)

    • RXI Serial (Activity) (green)
    • TXI Serial (Activity) (yellow)
    • RX2 Serial (Activity) (green)
    • TX2 Serial (Activity) (yellow)
    • RJ45 LEDs Link (100=green,10=yellow)
    • Act (Full=green, Half duplex=green)


    • CPU: DSTNI-EX 48 MHz clock
    • Memory: 256 KB zero wait state SRAM, 2 MB Flash


    • Lantronix DeviceInstaller GUI, Serial login, SNMP, Telnet login, HTTP


    • 9-30 VDC on barrel connector (1.8 Watts maximum consumption)


    • Operating: 0° to 60° C (32° to 140°F)
    • Storage: -40° to 85° C (-40 to 185°F)


    • Material: Metal enclosure with integrated wall mounts; optional 35 mm DIN-rail mount available
    • Dimensions (LxWxH): 9.5 x 7.2 x 2.3 cm (3.7 x 2.8 x 0.9 in)
    • Weight: 0.4 kg (0.9 lbs)
    • IP Rating: 30

    Agency Approvals

    • FCC, C/UL, CSA, VCCI, CE,TUV, CTick

    Shipping Dimensions

    • Dimensions (LxWxH): 35.5 x 17.1 x 7.6 cm (14 x 6.75 x 3 in)
    • Weight: 1.5 kg (3.0 lbs)

    Included Software

    • Windows 98/ME/NT/2000/XP/Vista-based DeviceInstaller configuration software, Com Port Redirector software and related utilities


    FCC Part 15 Subpart B Class A Radiated Emissions 30MHz – 1000MHz
    ICES-003 Issue 4 February 2004 Class A Radiated Emissions 30MHz – 1000MHz
    AS/NZS CISPR 22: 2004 Class A Radiated Emissions 30MHz – 1000MHz
    EN55022: 1998 + A1: 2000 + A2: 2003 Class A Radiated Emissions 30MHz – 1000MHz
    VCCI V-3/2005.04 Class A Radiated Emissions 30MHz – 1000MHz
    EN61000-3-2: 2000 Class A Harmonic Current Emissions
    EN61000-3-3: 1995 + A1: 2001 Fluctuations and Flicker


    EN55024: 1998 +A1: 2001 +A2: 2003
    IEC_61000-4-2: 1995 ESD 8kV Air Discharge (Direct), 4kV Contact Discharge (Direct/Indirect)
    IEC_61000-4-3: 1995 Radiated Immunity 3.0V/m, 1KHz AM Sine Wave at 80%
    IEC_61000-4-4: 1995 EFT/Burst 1.0kV Power Lines, 0.5kV I/O Lines
    IEC_61000-4-5: 1995 Surge Immunity 1.0kV Common Mode, 1.0 kV Differential Mode
    IEC_61000-4-6: 1996 Conducted Immunity 3.0 Vrms, 80% AM Modulated (1KHz)
    IEC_61000-4-8: 1993 Magnetic Field Immunity 50Hz 1.0 Arms/m
    IEC_61000-4-11: 1994 Voltage Dips and Interrupts (>95%,0.5 periods), (30%,25 periods), (>95%,250 periods)


    • Designed with protection against transients and ESD for use under harsh environments.
    • Serial Port: 15 kV ESD protection on RS232 and RS422/485 transceivers
    • Power Input: Up to non-repeated 600 W 10/100 usec pulse protection against transient over voltages
    • Ethernet Port: 1500 VAC isolation shielded with shield connected to chassis ground for signal integrity and ESD protection

SecureBox SDS2101 Resources

Application Spotlights
Press Releases
Case Studies

SecureBox SDS2101 Part Numbers

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SD2101002-11 SDS2101

two-port 10/100 secure device server RoHS compliant; universal power supply with regional adapters

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