M2 GPRS Modem M2-HG12T

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US $1-35 / Piece | 1 Piece/Pieces (Min. Order)
Supply Ability:
10000 Piece/Pieces per Month
Port:
Shenzhen
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Overview
Quick Details
Place of Origin:
Guangdong, China (Mainland)
Brand Name:
HOMTECS
Model Number:
M2-HG12T
Modem name:
M2-HG12T
Network:
GPRS
Band:
900MHz/1800MHz
Port:
9pin RS232 DB9
Default baud rate:
115200
Support range of default baud rate:
600 ~ 115200
Baud rate checking order:
AT+IPR
Baud rate change order:
AT+IPR=115200
Packaging & Delivery
Packaging Details
standard package
Delivery Time
3working days for samples

Specifications

modem:M2-HG12T
network:GPRS
BAND: 900MHz/1800MHz

M2 GPRS Modem M2-HG12T

 

 

 

 

Modem Name--M2-HG12T

Network--GPRS

BAND--900MHz/1800MHz

Port--9pin RS232,DB9

Power--+5V~+26V

DC--12V/1A DC power supply

Default baud rate--115200
Support range of default baud rate--600 ~ 115200

Baud rate checking order--AT+IPR

Baud rate change order--AT+IPR=115200

 

 NET LED--GPRS module work properly.flicker

PWR LED--When power source is work well, flicker, frequency is 0.5HZ, when power-off is starting for module, the light keeps on

DB9 pin

Modem

description

PC definition

1

DCD

O,carrier signal checking

DCD(I)

2

TXD

O,data sending

RXD(I)

3

RXD

I,data receiving

TXD(O)

4

DSR

I,data ready

DTR(O)

5

GND

P,signal ground

GND

6

DTR

O,data terminal ready

DSR(I)

7

CTS

I,delete sending

RTS(O)

8

RTS

O,asking for sending

CTS(I)

9

RING

O,ring signal

RING(I)

 

O = Output

I=Input

P=Power


modem serial port(DCE mode) can connect with PC serial port(DTE mode) directly

DTR reset description

Through 4 pin of serial port (PC-DTR), send out signal to control off- power reset inside of module, wave patten is as following

Monitoring processor inside of module check DTR input signal, RS232 electrical level is -5V~-15V, modem work well

In unusual situation, it’s necessary to restart modem, DTR input +5V~+15V electrical level.3 seconds, it return to be -5V~-15V,modem will automatically reset module, PWR light keep on 8 second, flicker and work well.

 Notice--- if DTR is always in +5V~+15V, it shows that modem already shut inner power source of module, PWR LED keep on 8 second, flicker once, then, keep on 8 seconds.Repeating, net light off.