USR IOT USR-GM1, Руководство пользователя

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USR-GPRS232-DTU USR MANUAL www.usr.so
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Jinan USR IOT Technology Limited tec@usr.cn
3.2 Product Features

300 to 115200 baud rate can be set, serial parameters (data bits, stop bits, parity) can be set
 Operating voltage: 7S2 Module 9 ~ 18V; 701/710 module 9 ~ 28V
 Current: average 50 ~ 200mA; maximum 1000 mA / 12V
 Working temperature: -40 ~ + 80 °C
 Storage Temperature: -40 ~ + 85 °C

Storage humidity: 5% ~ 95% RH
 maximum transmit power: GSM900 class4 (2W), DCS1800 class1 (1W)
 LED: 3 LEDs (POW, NET, DATA), respectively, indicate power, work status, connection status
 status and control pins: 7S module supports switch, WORK, LINK, LINK1 ~ LINK4, audio input / output;
 transparent mode supports TCP / UDP transport protocol, user flexibility to use other modes

Serial level: 7S2 module supports 3.3V TTL level (disable access 5V level), 701 module supports RS232 /
RS485 interface in two versions, 710 module supports RS232 / RS485 adaptation.