Relay board or multiple relay module

Communication

• Modbus/RTU;Modbus/TCP;TCP/IP;PPP;HTTP/HTML;FTP;NTP;XML;SNMP-Trap
  (2)
• Modbus/RTU;Modbus/TCP;TCP/IP;PPP;HTTP/HTML;FTP;NTP;XML;SNMP-Trap Protocols;RJ45 10/100 Ethernet;Full Half Duplex;Auto Polarity LAN;USB Expansion Port
  (1)
• Modbus/RTU
  (3)
• Modbus/TCP;TCP/IP;PPP;HTTP/HTML;FTP;NTP;XML;SNMP-Trap
  (1)

Flash Rom

• 16MB NOR Flash
  (2)
• 16 MB NOR Flash (expandable with USB memory device)
  (1)
• 16 MB NOR Flash
  (1)

Input

• RS-485 Modbus;Supports up to 32 External Device
  (3)

Memory

• 32 MB RAM
  (4)

Operating System

• Linux 2.6
  (4)

Processor

• ARM9 embedded CPU, ARM7 IO co-processor
  (2)
• ARM9 embedded CPU
  (2)
• 60MHz ARM7 embedded CPU
  (1)
• ARM7 field upgradeable firmware
  (2)

Size

• 8 H x 9.25 W x 2.5 D IN
  (2)
• 4 H x 4.25 W x 2 D IN
  (2)
• 4.5 H x 6.5 W x 2 D IN
  (1)
• 3.39 H x 4.13 W x 1.18 D IN
  (2)

Manufacturers