User Manual
Yifan Industry Co., Ltd.
Page 7 of 41
Tel: +86 592 5222813 Fax:+86 592 6101492
Email: admin@yifanwireless.com , admin@yi-fan.com.cn
Website: www.yifanwireless.com
it always online
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RS232/RS485/RS422 port: 15KV ESD protection
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SIM/UIM port: 15KV ESD protection
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Power port: reverse-voltage and overvoltage protection
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Antenna port: lightning protection(optional)
Standard and Convenience
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Adopt terminal block interface, convenient for industrial application
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Support standard RS232 and RS485(or RS422) port that can connect to serial devices directly
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TTL logic level RS232 interface can be customized
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Support intellectual mode, enter into communication state automatically when powered
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Provide management software for remote management
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Support several work modes
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Convenient configuration and maintenance interface
High-performance
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Support TCP server and support multi TCP client connection(optional)
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Support double data centers, one main and another backup
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Supply 5 I/O channels, compatible 2 pulse wave output channels, 2 analog inputs and one
pulse input counters.
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Support multi data centers and it can support 5 data centers at the same time
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Support multi online trigger ways, including SMS, ring and data. Support link disconnection
when timeout
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Support dynamic domain name(DDNS) and IP access to data center
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Design with standard TCP/IP protocol stack
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Support APN/VPDN
1.3 Working Principle
The principle chart of the IP MODEM is as following:
Cellular
Module
MCU
Antenna
SIM/UIM
Interface
Indicator
Lights
SRAM&
FLASH
WDT Module
RTC Module
User Interface
RS232/RS485/RS422
Module
Power Module