GPRS DTU无线数据传输终端模块 SMD 24x27.9mm USRS-GM3

产品特性

紧凑型完整的GPRSDTU模块,从串口到GPRS的透明传输

四个频段:GSM850/900,DCS1800/1900,全球通用

支持GSM/GPRS/EDGE网络；支持2G数据流量的2G/3G/4G SIM卡

支持同时有两个网络连接在线,并支持TCP和UDP.

支持发送注册数据包/心跳数据包

支持模块参数的远程短信设置

支持多种工作模式:短信透明传输模式,网络透明传输模式,HTTPD模式

支持基本指令集和扩展指令集

它支持使用扩展指令集来建立,维护和关闭网络连接,增加应用程序的灵活性

性别

It supports sending Chinese/English text messages with simple instructions, avoiding the complexity of PDU sending Chinese text messages

Difficult to use

It supports functions similar to RFC2217, allowing for dynamic modification of the serial port parameters of the module from the network

Hardware flow control supporting serial ports, RTS/CTS

Support RS485 transceiver switching control pins

Network serial port

The standard GSM/GPRS port count is TTL*1

Standard TTL serial port with a rate of 14.4Kbps to 57.6Kbps - surface mount 2.8V

Standard frequency bands 850/900/1800/1900 MHZ four-band data bits: 7 bits, 8 bits

GPRS Multi-Slot Class GPRSClass10 stop bits 1,2

GPRS Terminal Device

Class

ClassB checks for bits None, Even, Odd

Baud rate: 2.4Kbps to 921.6KKbps

GPR CodingSchemes CS1-CS4 cache RX:4Kbyte, TX:4Kbyte

Maximum transmission power GSM900class4 (2W), DCS1800class1 (1W) current-controlled CTS/RTS

There is no protection for network protocols TCP, UDP, DNS, and HTTPDClient

The network cache sends 4Kbyte and receives 4Kbyte. The RS-485 transceiver control pins have been reserved

Power supply equipment port

VCC 3.4-4.2V (3.8V is the best) SIM card 1.8V/3V

VDD- Voice interface: 1 MIC input and 1 SPEAK output

The average working current is 55 to 90mA, with a maximum of 750mA

Mechanical Structure USR-VOCM Windows2000 or higher (32-bit / 64-bit)

Module size: 27.94x24x3 (mm) (L*W*H) Configuration method: Upper computer setting software, serial port instructions, SMS instructions, network commands

Encapsulation surface mount encapsulation working environment

Operating temperature: -25 to 85℃

Storage temperature: -40 to 125℃

Packaging and transportation instructions

- According to the standard export packaging.

Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.

Q&A

1. How to obtain the price?

We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.

2. What is your delivery time?

This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.

3. What are your payment terms?

Factory price, 30% deposit, 70%T/T payment before shipment.

4. What is the mode of transportation?

可以通过海运,空运或快递(EMS,UPS,DHL,TNT,FEDEX等)运输.下单前请与我们确认.

5. 你如何帮助我们的业务建立长期良好的关系?

我们保持良好的质量和有竞争力的价格,以确保我们的客户受益.

2. 我们尊重每一位客户为我们的朋友.我们真诚地与他们做生意,并与他们交朋友,无论他们来自哪里.