MEIG SLM 320 - Page 9

MeiG_SLM320_Hardware Design Manual
MeiG Smart Technology Co., Ltd
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LTE Characteristic
 The maximum supportCAT1 Bis
 Support 1.4 ~ 20 MHZ radio frequency bandwidth
 FDD：The maximum UL rate is 5Mbps, and the maximum
DL rate is 10Mbps
 TDD：He maximum UL rate is 2Mbps, and the maximum
DL rate is 8Mbps
GSM character
 CSD transmission rate: 9.6 KBPS, 14.4 KBPS
 Support GPRS multi - slot class 12 (the default is 12)
 Coding formats: / CS-1/CS -2/CS --3 and CS - 4

Maximum 4 RX slots per frame
Network protocol features
 Embedded TCP/IP and UDP/IP protocol stack
Short Message service（SMS）
 Text and PDU mode
 point-to-point MO and MT
 Short Message storage: stored in the SIM card by default

Cell broadcast
GNSS character
 Cold start time<40S
 Hot start time<5S
 Tracking sensitivity-160dBm
 Acquisition sensitivity-147dBm
 Position accuracy<3m

GNSS Data type
：
NMEA-0183
USIM Port
 Support USIM/SIM：1.8Vand3V
Audio Features
 Support 1 channel digital audio interface：PCM port
 Support analog MIC signal input interface all the way
 Support one loudspeaker signal output interface
（
0.8W@4.2V /D
，
0.6W@4.2V/AB
）
PCM Interface
 For audio use, external CODEC chip is required
USB Interface
 Support USB2.0
 To the AT command, data transmission, software
debugging and software upgrades
 USB drive：Support Windows7，Windows 8/8.1，
Windows10
Serial Interface
The serial port：
 To AT commands and data transmission
 Baud rate is default 115200bps
 Support RTS and CTS hardware flow control
DBG Port：
 To develop debug, the log output

Baud rate is default115200bps
SD Interface
 Conforms to SD3.0 protocol
AT Commands
 Comply with 3GPP TS 27.007, 27.005, and MeiG
enhanced AT command
Network Indicator
 NET_STATUS，NET_MOD these two pins indicate the
state of the network