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+86 (755) 8370 0465
Rm.33, Unit B, Floor 12, U chuanggu, Xinniu Rd, Minzhi, Longhua, Shenzhen, 518000, China
E-Lins GSM routers covers GPRS and EDGE.
For single sim GSM router, the main models are H685, H685m.
Diferences between RS232 and RS485
Transmission method: RS-232 adopts unbalanced transmission that is also called single-ended communication. RS485 use a balanced transmission, that is, differential transmission.
Transmission distance: RS232 suits for local devices communication, transmission distance is generally not more than 20m. RS485 transmission distance can reach tens of meters to kilometers.
RS-232 allows only one-to-one communication, while the RS-485 interface allows up to 128 transceivers on the bus
RS232 is defined as a single-ended standard for increasing the communication distance in low-speed serial communications. RS232 take unbalanced transmission that is the so-called single-ended communication. The received and originating data signal is relative to the signal ground.
RS-485 and RS-232 are not the same. Its data signal use differential transmission, also known as balanced transmission.
Shenzhen E-Lins Technology Co., Ltd. is the backbone enterprise of China's Internet of Things wireless communication field.
We focused on the Internet of Things (M2M) applications, industrial areas of high-end wireless communications transmission equipment research and development. Our products include: industrial wireless router, industrial wireless Modem, wireless IP Modem (DTU), LED wireless distribution system, POE switches, GPS terminals, ZigBee terminals widely used in the power, oil, coal, postal services, finance, environmental protection, water conservancy, transportation, railways, heat, street lighting monitoring, taxation, security and other industries.