Digi One® IA

Serial Server to Ethernet Enable Any Industrial Serial Device

  • Modbus serial to Modbus/TCP protocol conversion
  • TCP/UDP Socket Services for broad device connectivity
  • 1 RS-232/422/485 switch selectable serial port
  • Industrial protocol support
How to Buy

Digi One IA provides reliable, cost-effective network connectivity for serial devices. This unobtrusive and easy- to-use serial server delivers serial-to-Ethernet connectivity to Programmable Logic Controllers (PLCs), Remote Terminal Units (RTUs), bar-code readers and other industrial devices.

Digi One IA supports most industrial automation protocols through TCP/UDP connections, serial bridging or COM port redirection using Digi’s patented RealPort® software. RealPort enables existing applications to communicate with serial devices over the Ethernet. By creating a Modbus bridge, multiple Modbus/TCP masters can share Modbus serial slaves, or Modbus serial masters can access Modbus/TCP slaves.

Digi One IA is easy to install locally or remotely. The IP address can be configured using DHCP, ARP-Ping or Setup, an application included with the installation CD that detects Digi One devices on the network. Using the web interface, users can configure advanced functions into their application.

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Digi One IA 70001862 HOW TO BUY
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Specifications Digi One IA
Management HTTP configuration, Digi Port Authority – Remote management diagnostics and auto-discovery tool
Protocols Telnet, Reverse Telnet and extended Telnet RFC 2217; TCP/UDP Socket Services; UDP, support 32 concurrent socket connections; DHCP/RARP, ARP-Ping; Modbus ASCII/RTU to Modbus TCP conversion; Modbus Ethernet-to-Serial Bridge Function supporting Modbus/TCP, Modbus/UDP, Modbus/RTU, Modbus/ASCII; Modbus bridge supports TCP and UDP Encapsulation of Modbus/RTU, Modbus/ASCII
Software Patented RealPort COM port redirector for COM/TTY ports for Microsoft® Windows®, UNIX® and Linux®
Operating Systems AIX, HP-UX, Solaris, Linux®, Windows® 2000, Windows® XP, Windows® 7, Windows® 8, Windows® 8.1, Windows® 10, Windows Server® 2003, Windows Server® 2008, Windows Server® 2012. Note: TCP/UDP socket services are operating system independent
Status LEDs Serial signals, Power, Ethernet, Diagnostics
Dimensions (L x W x D) 4.70 in x 0.90 in x 4.0 in (12.00 cm x 2.30 cm x 10.10 cm)
Weight 2.25 oz (64.00 g)
Other Full modem and hardware flow control, Flash upgradeable firmware, 35 mm DIN rail mounting
Serial Ports 1 RS-232/422/485 (switch selectable)
Serial Connector DB-9M or screw terminal connectors
Serial Throughput Up to 230 Kbps
Ethernet Physical Layer 10/100Base-T
Power Requirements
Power Input 9-30 VDC @ .5 Amps max
Power Connector Screw terminal block power jack for external supply
Surge Protection 2 kV isolation between power supply and serial ground product
Operating Temperature 0º C to 60º C (32º F to 140º F)
Relative Humidity 5% to 90% (non-condensing)
Ethernet Isolation 1500 VAC min per IEEE 802.3/ANSI X3.263
Serial Port Protection (ESD) 15 kV human body model
Regulatory Approvals
Safety UL 60950, UL1604 (Class 1 Div 2), EN60950, CAN/CSA C22.2 No.60950
Emissions/Immunity FCC Part 15 Subpart B (Class A), EN55024, EN55022 (Class A), EN61000-6-2

Digi One IA - Top

Digi One IA - Bottom

Cable-to-Adapter Cross Reference

For ConnectPort TS and LTS, PortServes TS, Digi Neo and other Digi products with RJ-45 10 pin Connectors.

Note: Digi Passport, Digi CM and Etherlite use different pinouts, please refer to the appropriate product documentation

RJ-45 to Male or Female Straight or Crossover Application Cable or Adapter Pin-out Part Number Cable Identifier
DB-9 F Crossover Bay Accelar, Nortel and other DB-9 DTE devices Cable 76000645 (4’) How to buy 61090048
Adapter (4-Pack) 76000697 How to buy N/A
DB-9 M Crossover DTE devices with DB-9 female ports Cable 76000264 (4’) How to buy 61080048
Adapter None None N/A
DB-9 F Straight Modems and other DCE devices with DB-9 male ports Cable 76000200 (2’)
76000201 (4’)
How to buy
How to buy
Adapter None None N/A
DB-9 M Straight Modems and other DCE devices with DB-9 female ports Cable 76000239 (2’)
76000240 (4’)
How to buy
How to buy
Adapter (4-Pack) 76000701 How to buy N/A
DB-25 M Crossover Sun Sparc, Sun Ultra, terminals, printers and other DTE devices with DB-25 female ports Cable 76000238 (4’) How to buy 61040048
Adapter (4-Pack) 76000698 How to buy N/A
DB-25 F Crossover Cisco, IBM and other DTE devices with DB-25 male ports Cable 76000644 (4’) How to buy 61050048
Adapter (4-Pack) 76000699 How to buy N/A
DB-25 M Straight Modems and other DCE devices with DB-25 female ports Cable 76000129 (2’)
76000195 (4’)
How to buy
How to buy
Adapter (4-Pack) 76000700 How to buy N/A
DB-25 F Straight Modems and other DCE devices with DB-25 male ports Cable 76000198 (2’)
76000199 (4’)
How to buy
How to buy
Adapter None N/A
DB-25 M *Special* For use with printers. This cable utilizes the DTR signal (instead of RTS) for hardware flow control. Cable 76000643 (2’) How to buy 63000196-01
Adapter (4-Pack) 76000692 How to buy N/A
RJ-45 M *Special* For use with Cisco and Sun RJ-45 console ports. Cable 76000631 (6’)
76000632 (qty 8)
76000633 (qty 16)
How to buy
How to buy
How to buy
Adapter None None N/A
  • All RJ-45 to DBx cables are 10-pin. Only the RJ-45 to RJ-45 cable is an 8-pin cable.
  • All RJ-45 adapters are 8-pin. When using these adapters with modems or other applications that require DCD on pin 1, you must turn on altpin.
  • If altpin is turned off, the hardware signal on pin 1 becomes DSR instead of DCD. This alternative can be used if DCD is not required, and DSR is needed instead.





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