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JIT-M2M
D223 M2M Modem GSM 3G DTU Support Programmable SMS Data Transfer with TTL RS485 Port Access Control
Quad band 850/900/1800/1900Mhz GSM GPRS Module inside
3G UMTS/HSDPA/4G Modules are optional
Embedded 32 bit ARM9 MCU, reliable performance with in-built watchdog
Multi-functional, supports AT Commands, Transparent SMS and Data Transfer
three-wire RS485 serial port, RS232 is optional, Baud rate adjustable from 1200~115200bps, ± 15KV ESD protection digital input, supports dry contact, wet contact, pulse counter can be used as alarm
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JIT
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