Mega System Tech RS422 Manuale Utente

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NET101 User’s Manual                                                        -1- 
Chapter 1: Introduction 
Chapter 1: Introduction   
Section 1. Features 
NET101 is one of the smallest RS232/RS422/RS485 Ethernet Converter in the 
market.  This device provides the means to transfer serial data over the Internet 
without having to make changes to your existing hardware/software. That is done by 
connecting two NET101 in Master mode and Slave mode. Alternatively, a virtual 
driver can be installed to control the facility over Internet.   
 
The NET101 also could be used as a MODBUS gateway. It could convert transaction 
between the MODBUS on Serial Bus and MODBUS on TCP/IP. Please refer to the 
specification of MODBUS for detailed specification on MODBUS. 
 
Some of the main features of this device are; 
Firmware: 
•  Built-in Web Server 
•  Support RS232 / 422 /485 (Half/Full Duplex) physical bus 
•  Auto-detection of Ethernet bus type 
•  Support Virtual COM port drivers from Microsoft Windows platform 
•  Support One-on-One communication mode 
•  Support Virtual COM port mode 
•  Gateway between MODBUS Serial and MODBUS on Ethernet 
•  Configuration via telnet, Web or Netility (freeware) 
•  PPPoE and DDNS protocol for xDSL broadband connection 
•  Serial data transfer rate up to 115kbps (19.2kbps for continuous 
transmit/receive). 
•  Connects serial device to 10/100Mbps Fast Ethernet Network Access 
•  Support any Web Browser for configuration 
•  Network Protocol: HTTP server, TCP/IP, UDP, SMTP, PPPoE, Dynamic DNS, 
DNS Client, SNTP, BOOTP, DHCP, FTP Server, SNMP 
 
Hardware: 
•  32-Bit 50MHz RISC ARM7 TDMI CPU 
•  System clock: 25MHz or 50MHz 
•  Flash Memory: 512KB / 1MB / 2MB / 4MB / 8MB 
•  Dynamic Memory: 2MB / 8MB / 16MB 
•  LCD display shows the IP address, Subnet Mask and Gateway 
•  Power supply: 4.8V to 7.0V, 250mA maximum. 
•  Operating Voltage: 3.3 volts 
•  Operating Temperature: 0°C ~ 60°C 
•  Operating Humidity: 5% ~ 90% 
•  Dimensions: 48mm x 63mm x 21m 
• Weight: 
75g 
•  For Indoor Use. Protective housing required for outdoor use