Based on years of experiences, knowledge of our experts and beeing in touch with world's standards we offer you this interfaces:
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any protocol over RS232/RS484 to Ethernet with SNMP funcionality
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transparent transfer RS232/RS484 over GPRS
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GSM/GPRS modems with analog and digital inputs and digital outputs
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Any protocol to SNMP,WEB,SMTP converter
Ethernet-RS232/485 converter & 3x digital input/output
Example 1
Example 2
Ethernet Interface (replace RS232 IC with Ethernet on any PC board)
Ethernet - RS232 Interface & DC Power DC Loads (Router, Switch..)
Ethernet - 7x RS232
RS232 & DI/DO over GPRS (1)