3611 Serial to Ethernet Converter

Case 3611 Ethernet to Serial Converter
3611 Dimensions

Key Features

RS-232/ RS-485 / RS422 Serial Server

Supports 1 serial ports and 1 x 10/100Base-T (Tx) self-adapting Ethernet Interface

Supports TCP Server, TCP Client, TCP Auto, UDP, Advanced TCP Server, Advanced UDP and other operating modes.

Power 9 ~ 48 vdc

Operating Temperature -40C ~ +70C

Dimensions: 69mm (W) x 22mm (H) x 100mm (D)

Weight: 240 gms


The Case Communications 3611 Serial to Ethernet Converters is an RS232 to ethernet converter allowing a serial device to operate over an Ethernet Network and manage serial devices and hosts in remote locations via the network. The 3611 supports 1 x RS232 / RS-485 / RS-422 serial interface and 1 x 10Mbps / 100Mbps Ethernet interface.

The 3611 Serial to Ethernet Serial Port adapter  supports multiple network protocols, such as TCP, UDP, ARP, ICMP, HTTP, DNS and DHCP. It also allows remote management including access control and rapid configuration.

The ethernet to serial converter supports 4 TCP or UDP Sessions, and also supports a TCP Server, TCP Client, TCP Auto, UDP Advanced TCP Server, Advanced UDP Operating modes and AT, Web access modes.

A  management tool based on a Windows platform can guide the user to manage and configure the 3611.

The Case Communications 3611 Serial to Ethernet converter operates from -40C to + 70C without fans and has low power consumption, making it ideal for use in harsh environments.

Key Specifications

  • Based on 32 bit Arm Processor

  • 10/100Base-T(Tx) Self-adaptive Ethernet Interface

  • Auto MDI / MDIX, allowing connection via a straight or cross-over cable

  • Non-Blocking 300bps – 115200bps line speed communications

  • Low Power consumption mode and high-performance mode

  • TCP Server, TCP Client, TCP Auto, UDP, Advanced TCP Server and Advanced UDP Operating modes.

  • Support for AT Commands

  • Support for a DNS Server allowing communications via a domain name.

  • Support for cross gateway and routing communications

  • Virtual Serial port access and an automatic re-connection after a network interruption

  • Flexible serial port data framing, allowing data packet segmentation.

  • Support for standard TCP / IP socket application access.

  • TCP Supports multiple-connections, which allow a maximum of 4 users to monitor or manage devices simultaneously.

  • Support for a Windows configuration tool, serial port, Web and other configuration forms.

  • Supports local and remote system firmware upgrades

Technical Specifications

EthernetStandard: Ethernet port 10/100Mbps Base-T(Tx)
Rate: 10/100Mbps automatic flow control, MDI / MDI-X auto-adaptive interface on RJ45
Duplex Mode: full / half duplex mode self adapting
Operating Mode: 4 sessions, support for TCP Server, TCP Client, UDP, TCP Auto, Advanced TCP Server and Advanced UDP
Serial PortStandards: EIA RS232-C, RS485, RS-422
RS-232 Signals: RxD, TxD, DTR, GND, DSR, RTS, CTS
RS-485 Signals: D+, D-, GND
RS-422 Signals: T+, T-, GND, R+, R-
Data rate: 300-115200bps
Parity bits: None, Even, Odd, Space, Mark
Stop Bit: 1 bit, 1.5bits, 2 Bits
Physical Interface: RS-232 dB9 male, RS-485 / 422 uses 5 pins 5.08mm pitch terminal blocks.
Directional Control: RS-485 direction of data flow is automatic
Load Capacity: RS-485 / 422 supports polling 32 points (customizable to 128 points) Pull high / low resistor for RS-485: 4.7 Ohm
Configuration OptionsWeb configuration, Serial port using AT Commands, Windows Configuration tool
SecurityUser permission levels
IndicatorsPower Supply, Ethernet Port, Serial Port Indicator.
Power Supply9-48vdc, 3 pins 5.08mm pitch terminal block. Support for reverse polarity protection
Power ConsumptionNo load 0.8w at 12 vdc. Fully Loaded 0.84w at 12 vdc.
Operating Temperature-40c ~ +70c
Storage Temperature-40C ~ +85C
Relative Humidity5% ~95% (no condensation)
Physical CharacteristicsHousing: IP 40
Dimensions 69mm(w) x 22mm(h) x 100mm(d)
Weights: 240gms
Industrial StandardsIEC 61000-4-2 (ESD)
Level 3 +/-8kV
Contact discharge +/- 6kV
IEC 61000-4-4 (EFT/B ) Level 3
Power Supply +/- 2kv
Ethernet Interface: +/- 1kV
Serial Port:+/1 1Kv
IEC 61000-4-5 (Surge) Level 2
Power Supply +/- 1kV, differential mode +/- 1kV
Shock: IEC 60068-2-27
Free Fall: IEC60068-2-32
Vibration: IEC 60068-2-6
CertificationCE, FCC, RoHS

Ordering Information

Case Communications 3611 Serial to Ethernet Converter

Additional Information

3611 Serial to Ethernet Data Sheet (879 downloads )

3611 Serial to Ethernet Converter Manual (922 downloads )

For more information please contact Case Communications

An rs232 to ethernet converter allows legacy devices running serial ports to operate over an IP Network. The ethernet serial port adapter either transports the RS232 data from one point in the network to another point or provides the function of an ethernet to serial converter allowing a PC to run a protocol such as Telnet to connect to a Serial device.

An rs232 to ethernet converter is widely used in the Internet of things to connect where the IoT devices still use serial ports and the control systems running on PC’s require an ethernet serial port adapter

While we have used RS232 as the physical interface for the ethernet serial port adapter these products can also convert Ethernet to RS 485 and RS 422