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Black desktop device server with two DB-9 serial ports and one RJ-45 Ethernet port

Lantronix

Lantronix SD2101002-11 SecureBox SDS2101 device server wireless accessory

SKU CH-C2NW-25060 MPN SD2101002-11

Connects two serial devices to a 10/100 Ethernet network via a compact desktop unit

  • TypeDevice Server
  • ColorBlack
  • Specifications2 x serial - RS-232/422/485 - 9 pin D-Sub (DB-9) 1 x network
  • FeaturesMedia Type Supported: Twisted PairEthernet Technology: Fast
  • Secure serial connectivity with dual RS-232/422/485 DB-9 ports
  • Fast Ethernet access via single 10/100Base-TX RJ-45 interface
  • Compact desktop form factor measuring 2.80 x 3.70 x 0.90 inches
  • Integrated Lantronix DSTNI-EX processor running at 48 MHz with 2 MB Flash
  • RoHS certified environmentally friendly design backed by 2-year limited warranty

What the SecureBox SDS2101 is and who needs it

The Lantronix SD2101002-11 SecureBox SDS2101 is a desktop device server that connects two serial RS-232/422/485 ports to a 10/100 Fast Ethernet network. It lets operators remotely access and manage legacy serial equipment such as industrial controllers, meters or console ports over a standard LAN or the Internet. The unit ships new in a black enclosure and includes 256 KB SRAM plus 2 MB Flash running on a 48 MHz DSTNI-EX processor.

How it fits into a network build

The device requires a single RJ-45 twisted-pair connection and a power source; it draws power from an external supply not detailed here. Its compact desktop footprint of 0.90 by 2.80 by 3.70 inches and 400 g weight allows placement on a shelf, DIN rail or inside a cabinet without a rack. One Ethernet port frees up cabling compared with running separate serial lines back to a host PC, while two DB-9 ports serve two serial devices simultaneously.

What it replaces and when the upgrade makes sense

The SDS2101 replaces direct serial cabling or basic terminal servers that lack encryption and centralized management. The jump is worthwhile when serial assets must be monitored or configured from a central operations centre, when audit trails require secure access logs, or when physical distance exceeds reliable RS-485 runs. It is not suited for installations needing more than two serial ports, Gigabit Ethernet throughput, wireless connectivity or Power over Ethernet.

Highlights

  • Secure serial connectivity with dual RS-232/422/485 DB-9 ports
  • Fast Ethernet access via single 10/100Base-TX RJ-45 interface
  • Compact desktop form factor measuring 2.80 x 3.70 x 0.90 inches
  • Integrated Lantronix DSTNI-EX processor running at 48 MHz with 2 MB Flash
  • RoHS certified environmentally friendly design backed by 2-year limited warranty

Specifications

BrandLantronix
ModelSD2101002-11
TypeDevice Server
ColorBlack
Specifications2 x serial - RS-232/422/485 - 9 pin D-Sub (DB-9)
1 x network - Ethernet 10Base-T/100Base-TX - RJ-45
Processor: Lantronix DSTNI-EX 48 MHz clock
Memory:
256 KB zero wait state SRAM
2 MB Flash
Form Factor: Desktop
FeaturesMedia Type Supported: Twisted PairEthernet Technology: Fast EthernetNetwork Standard: 10/100Base-TXNetwork (RJ-45): YesSerial Port: YesNumber of Network (RJ-45) Ports: 1Number of Serial Ports: 2Form Factor: DesktopHeight: 0.9" (22.9 mm)Width: 2.8" (71.1 mm)Depth: 3.7" (94 mm)Weight (Approximate): 400 gGreen Compliant: YesGreen Compliance Certificate/Authority: RoHSLimited Warranty: 2 Year
Shipping weight0.82 kg
Package size356 × 178 × 76 mm

Questions about this item

How many serial devices can the SDS2101 connect at once?

Two serial ports support RS-232, RS-422 and RS-485, so two devices can be connected simultaneously.

How much power does the SDS2101 draw when running continuously?

The processor runs at 48 MHz with 256 KB SRAM and 2 MB Flash, a combination that keeps power draw low for all-day operation.

What network port must already exist on site for the SDS2101 to work?

One RJ-45 port running 10/100Base-TX over twisted-pair cabling is required for the Ethernet connection.

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