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Cellular
Module
MCU
Antenna
SIM/UIM
Interface
Indicator
Lights
SRAM&
FLASH
WDT Module
RTC Module
User Interface
RS232/RS485/RS422
Module
Power Module
Figure1-2 IP Modem principle chart
1.3 Specifications
Hardware System
Item
Content
CPU
Industrial 32 bits CPU
FLASH
512KB (Extendable)
SRAM
256KB
ADC
12 bit
Interface Type
Item
Content
Serial
1 RS232 port and 1 RS485(or 2 RS232) port, 15KV ESD protection
Data bits: 5, 6 ,7, 8
Stop bits: 1, 1.5, 2
Parity: none, even, odd, space, mark
Baud rate: 600-115200 bps
Indicator
"Power", "ACT", "Online"
Antenna
Standard SMA female interface, 50 ohm
SIM/UIM
Standard drawer interface,support 3V/1.8V SIM/UIM card, 15KV ESD
protection
Power
Terminal block interface, reverse-voltage and overvoltage protection