Neo_M680 GPRS Module Hardware User Guide
Copyright © Neoway Technology Co., Ltd
3
Audio
Available audio coding:
HR
FR
EFR
AMR
Supporting echo suppression
Supporting recording and DTMF check function
SMS
TEXT/PDU
Supporting SMS message receiving and transmitting and alert for new
SMS messages
Supporting SMS message management: reading/deleting/storage/list
GPRS feature
GPRS CLASS 12
Max. theoretic uplink rate: 85.6 Kbit/s
Max. theoretic downlink rate: 85.6 Kbit/s
Built-in TCP/IP protocol, supporting multiple links
Supporting server and client modes
Circuit Switch Data
CSD data service
USSD
Supplementary service
Call forwarding (CFB, CFNA, CFU)
Call waiting
Call holding and multi-way calling
UART
Supporting hardware flow control, RTS and CTS controlled via AT
commands
Supporting multiplexing
Supporting AT sending, data transmission, and software download
Supporting baudrate from 1200 bit/s to 115200 bit/s
RTC
Supporting real-time clock and time updating
Supporting timing power-on/off
CPU
ARM7-EJ@360MHz
Antenna feature
50 Ω impedance
Operating temperature
-40
℃
to +85
℃
Operating voltage
3.5 V to 4.3 V (3.9 V is recommended)
Peak current
Max 2.0 A
Idle current
18 mA
Current in sleep mode
< 2 mA (live network)
< 1 mA (instrument, DRX=9)