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Intelligent Device Server with 4 RS-232/422/485 (Isolated, Metal Case,RoHS, DB9). iDS-448iM-D is phased out and replaced with PDS/PDSM, tDS-700, and tGW-700 Series products.


Intelligent Device Server with 4 RS-232/422/485 (Isolated, Metal Case,RoHS, DB9). iDS-448iM-D is phased out and replaced with PDS/PDSM, tDS-700, and tGW-700 Series products.

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References & Support


The iDS-448iM-D has officially been phased out and will no longer be available. It has now been replaced by PDS/PDSM Series, tDS-700 Series, and tGW-700 Series.

  • Incorporate Serial Devices in an Ethernet network
  • Virtual COM for 32-bit and 64-bit Windows XP/2003/Vista/7
  • Supports 1/2/4-port RS-232, RS-422 and RS-485 communications
  • Web-based configuration and PC Utility
  • Serial ESD protection
  • Provides Virtual COM (COM port redirection), TCP Server/Client (Max. 32 connections), UDP,
  • Serial Tunnel (Pair connection), Modem Emulator, and RFC2217 application modes.
  • Built-in Buzzer, RTC, and Watchdog
  • Wide operating temperature range: -25 to +75°C
  • Supports SNMP V1, V2c, V3, Trap and MIB-II protocols for network management
  • Built-in Hardware-selectable Pull High/Low resistors and Terminal resistors for RS-422/485 ports
  • Supports RS-485 Data Direction Control with Self-Tuner Technology


The iDS product range is the 3rd generation of Device Servers from ICPDAS. It is designed for rugged, industrial-level applications, and provides high performance, high reliability and high capacity.

The iDS product range provides a complete Ethernet service, as well as 1, 2 and 4-port RS-232/RS-422/RS-485 interfaces that allow any existing serial devices to be connected to an Ethernet network.


Powerful Data Transparent Solution: Zero Data Loss

The iDS product range is equipped with an ARM-based high-performance CPU and large capacity RAM in order to accomplish the goal of “Zero Data Loss” when attempting to transfer a critical data stream. If a failure occurs on the Ethernet connection, the serial data will be queued and will be resent once the Ethernet is reconnected. Each device port provides 32 TCP connections that can be used to share the same information across the network from a single serial device.

Industrial–grade Design


The iDS product range provides a wide range of built-in features designed for easy deployment of the device into existing operating environments.

  1. Dual Power Supply: DC and PoE
  2. DIN-Rail Mounting
  3. Serial Port Surge Protection
  4. Adjustable RS-485 Terminal Resistor and Pull High/Low Resistor
  5. RS-485 Direction Control via the embedded ICPDAS Self-Tuner
  6. Hardware/Software-selectable RS-232, RS-422 or RS-485 Interfaces
  7. Hardware Reset button and LED Indicator.
  8. 64-bit Hardware Serial Number

Easy web-based Configuration

The built-in web server allows the iDS product to be accessed and configured using a standard web browser, such as Internet Explorer or Google Chrome. The configurations include parameters of serial ports, SNMP, the mode of Serial-To-Ethernet service. In addition, the onboard Flash memory provides the capacity for future software upgrades.


IT-friendly Management

All devices in the iDS product range support the SNMP protocol, which is a popular method within the IT industry for monitoring a device over the Ethernet. The iDS device can be configured to send SNMP-Trap alerts to the SNMP manager if user-defined errors or events are encountered. For example, alerts can be triggered by a warm/cold start events, or a password change, etc. An email alert and web-based event log page is also provided.

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Models iDS-718i-D iDS-728i-T iDS-718iM-D iDS-728iM-T iDS-448iM-D
CPU Module
CPU 32-bit RISC, 720 Mhz
Flash 256 MB
Peripheral microSD, RTC, Serial Number, Watchdog, Buzzer
Communication Interface
COM1 5-wire RS-232/422/485 (Isolated)
COM2 5-wire RS-232/422/485 (Isolated) 5-wire RS-232/422/485 (Isolated) 5-wire RS-232/422/485 (Isolated)
COM3 5-wire RS-232/422/485 (Isolated)
COM4 5-wire RS-232/422/485 (Isolated)
Ethernet 10/100 Base-TX, RJ-45 port (Auto-negotiating, Auto MDI/MDI-X, LED indicators), PoE (IEEE 802.3af, Class 1)
COM Port Signals
3-wire RS-232 RxD, TxD and GND
5-wire RS-232 RxD, TxD, CTS, RTS and GND
RS-422/485 TxD+, TxD-, RxD+, RxD- and GND/Data+, Data- and GND
RS-485 Data+, Data- and Iso.GND
COM Port Formats
Data Bits 5, 6, 7, 8
Parity None, Even, Odd, Mark, Space
Stop Bits 1, 1.5, 2
Baud Rate 921.6 kbps Max.
Flow Control RTS/CTS, XON/XOFF
Pull High/Low Resistor Switch-selectable (1 kΩ for RS-422/485, Non-Resistor for RS-232)
ESD Protection Yes (with Frame Ground)
Protection Power input reverse polarity protection
Required Supply Voltage +12 VDC ~ +48 VDC (non-regulated) or PoE (IEEE 802.3af, Class 1)
Power Consumption 3.5 W
Configuration Method Web, Serial Console, Telnet/SSH Console, eSearch Utility for Windows
Virtual COM for Windows Windows 2000, Windows XP/2003/Vista/2008/7/8 x86/x64, 2012 x64, XP Embedded
Virtual COM for Linux Linux kernel 2.4.x, 2.6.x, 3.x
SNMP Standards RFC1213 MIB-II, RFC1317
Application Modes Virtual COM, TCP Server, TCP Client, UDP, Pair Connection, RFC2217, Terminal, Reverse Telnet, TCP Modem
Dimensions (W x H x D) 78 mm x 114 mm x 42 mm
(97 mm x 114 mm x 42 mm for "M" versions )
78 mm x 120 mm x 42 mm
( 97 mm x 120 mm x 42 mm for "M" versions )
Installation DIN-Rail
Casing Plastic (Metal for "M" versions)
Operating Temperature -25°C ~ +75°C
Storage Temperature -40°C ~ +80°C
Humidity 5 ~ 90% RH, non-condensing

References and Support

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