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KYL-300I-48 Datasheet(PDF) 5 Page - SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD. |
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KYL-300I-48 Datasheet(HTML) 5 Page - SHENZHEN KYL COMMUNICATION EQUIPMENT CO,LTD. |
5 / 15 page Shen Shen Shen Shenz z z zhen hen hen hen KYL KYL KYL KYL Communication Communication Communication Communication Equipment Equipment Equipment Equipment Co Co Co Co. . . ., , , , Ltd Ltd Ltd Ltd Fax: Fax: Fax: Fax: +86-0755-83408785 +86-0755-83408785 +86-0755-83408785 +86-0755-83408785 kyl03losia@gmail.com kyl03losia@gmail.com kyl03losia@gmail.com kyl03losia@gmail.com www.rf-data.com www.rf-data.com www.rf-data.com www.rf-data.com 5 IV: IV: IV: IV: How How How How to to to to use use use use the the the the KYL-300I KYL-300I KYL-300I KYL-300I KYL-300I provide RS-232, RS-485 and USB interface port for direct connection with PC, RS485 devices, monolithic processors and other UART components kinds of applications. The schematic diagram is shown below: 1. 1. 1. 1. Power Power Power Power supply supply supply supply The factory default setting is +5V(7.5V-12V will inform when placing the order).By using better ripple factor, KYL-300I transceivers can also share power supply with other equipment. If possible, a voltage-stabilizing chip with 5V voltage is more recommended as the only power supply than Switch power supply. But if only switch power supply available, the jam by switch pulse to the transceivers should be avoided. In addition, the reliable grounding must be used if there is other device in the system equipment. In case of failing to connect with the ground, it can form its own grounding but must be absolutely separated from the municipal electric supply. 2. Connection Connection Connection Connection Definition Definition Definition Definition with with with with terminal terminal terminal terminal KYL-300I transceivers supply one 9-pin connector (JP1), their definitions and connection methods with terminals are shown in Table 1. Table Table Table Table 1: 1: 1: 1: JP1 JP1 JP1 JP1 Pin Pin Pin Pin Definitions Definitions Definitions Definitions and and and and connection connection connection connection methods methods methods methods Pin No. Signal Name Function Level Connection with terminal Remarks 1 VCC Power supply DC 5V 2 A (TXD) A of RS-485(TxD of RS-232) A(RxD) 3 B (RXD) B of RS-485(RxD of RS-232) B(TxD) 4 RxD 5 GND GND 6 7 8 9 |
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