Products  >  Model 2120 View Printable

End of Life Notice (PDF). This legacy product is not recommended for new installations. For next-generation alternatives, please refer to the EtherBITS™ Model 2285 Universal Single-port Device Server or Model 2232 Single-Port RS-232 Device Server.

--Image: RACKABLE! Rack Mount Available --Ethernet continues to be the most common office networking infrastructure. Now, Ethernet is making its way from the office to the shop floor. Traditional RS-232 environments require the use of multiport serial cards, expensive cables, and the personnel to manage multiple systems. Patton’s Model 2120 Single Port Terminal Server provides a quick, simple, and cost-effective solution for connecting traditional RS-232 terminals and devices to the LAN.

The Model 2120 enables you to bring all systems and equipment together onto one local area network. Typical serial devices include ASCII terminals, time/attendance devices, CNC controllers, printers, key card systems, and modems. The Model 2120 links serial RS-232 devices to the network by encapsulating the RS-232 data into IP packets for transport over the LAN. Using RAWTCP or TELNET, the Model 2120 can connect to any user-defined IP address and port. Once connected to the remote host, data is passed transparently end-to-end. The built-in DHCP Client allows the Model 2120 to dynamically obtain an IP address and a subnet mask from a master server. With SLIP and PPP connections, remote users can access the network and it will appear as if they were locally connected.

Why go to the expense and hassle of installing outdated multi-port serial cards and cables and managing multiple systems? The Patton Model 2120 easily and cost effectively brings serial RS-232 equipment together with other systems on one Local Area Network!

The Model 2120 conveniently attaches to the serial port of the RS-232 device. The Model 2120 will use its individually assigned IP address so that the host PC can target a specific serial device, in this case, card readers. Using a similar communications protocol such as RAWTCP or TELNET, the host PC will poll and monitor the card readers for various types of data.


  • Control and Monitor Serial Devices—Control and monitor your RS-232 asynchronous terminals and devices over the local area network
  • Supports a Wide Range of Data Rates—User-selectable async data rates up to 115.2 kbps
  • Connects Directly to the LAN—802.3 10Base-T LAN connection via RJ-45 connects to any hub/switch
  • Standard TCP/IP Protocols Supported—TCP, UDP, IP, ICMP, TELNET, ARP, DHCP, FTP, SLIP, PPP, DNS, WINS, and PAP
  • Free Software Updates—Download new software via Patton’s FTP site to internal FLASH memory
  • Easy to Monitor—LEDs for monitoring LAN link and status, and RS-232 control signals


Ordering information for this product is not publicly available at this time.
Please accept our apology as we regret any inconvenience to you.

For more information
about the availability of this product and/or alternative solutions,
please contact Patton's Product Management team at or +1 301 975 1000

Sales: / +1 301 975 1000
Support: / +1 301 975 1007
Join Our Email List
Have Us Contact You
Login Connect With Us
X Linkedin Facebook Youtube
     Patton LLC Copyright © 2022 All Rights Reserved.

|  Sitemap  |   Legal  |   Privacy Policy  |   Disclaimer  |    X  Facebook  YouTube  LinkedIn  RSS