Confusion with RS485 data Tx+, Tx-, Rx+, Rx-, A, B, Y, Z
2008年5月16日 · 175,255. Hi, You need to cennect: Tx+ --> Rx+. Tx- --> Rx-. In both directions. RS422 usually is full duplex, it uses two pairs for bidirectional transmission, point to point. RS485 can be full duplex, half duplex and has bus capabilities. One or two pairs are needed forbidirectional transmission.
SATA SSD connection tx to tx or rx? | Forum for Electronics
2019年9月20日 · As I know, for the SATA Transceivers used, the TX & RX of the SATA Host is connected to SATA Device RX & TX. SATA spec is for the the standard SATA pinout (7pin & 15pin). confusion is about the SSD. the snippet I posted there it mention the SATA spec for 7 pin, not for SSD. Not open for further replies.
UART Tx to Tx connecting issues | Forum for Electronics
2012年10月17日 · Administrator. Note that the microcontrollers use a logic level Rx/Tx so a device like MAX232 should be used to translate it to the proper RS232 levels. If you connect Tx with Tx (I assume you refer to max232) then the chips will overheat, they may not be damaged. Normally the connection is made using a straight wire but if you want to use a ...
Modelling of Tx. antenna and Rx.antenna using HFSS
2007年6月18日 · 2,578. An antenna's maximum gain or peak gain is the gain in the main beam direction. figuratively you also have a gain in other directions as well but the direction of maximum radiation is peak gain. "i dont understand what you mean EIRP is 4W,but the maximum power transmitted is 1W.so the gain of the antenna is 4."
TX/RX Isolation in RFID Reader | Forum for Electronics
2005年3月4日 · 1,344. isolant rx. Hi! I'm currently designing UHF passive reader and having a problem in TX/RX isolation. As we know in backscattered tags the continiuos RF signal must be presented at the time of backscattering. This causes the likage from transmitter to receiver and interfering with receiving signal. One of the solution is to have two ...
Ultrasonic TX & RX - Forum for Electronics
2005年6月13日 · Location. Lions Den. Activity points. 2,684. ultrasonic tx rx. Some ultrasonic sensor are TX & RX housed in a single module. This is mostly used in reverse sensor for automobile applications. Nowdays you can get a pair of sensor less than US$4. Aug 21, 2006.
Place TX/RX Antenna? - Forum for Electronics
2016年11月4日 · The antenna (RX and TX) installed on tower and have 5m distance between them and the cable length is about 20m and then connect to Device. 2- Yes, Both of them in same PCB. 3- UHF band with narrow bandwidth. and antenna type is omni like as "Laird Technologies FRX450 450-470 MHz 5dBi Fiberglass Omni Antenna". Apr 19, 2020.
[SOLVED] OpAmp driven RX/TX activity LED for UART. - Forum for …
2016年2月6日 · I am using two inputs for the RX LED and the other two inputs for the TX LED. In the quoted part of this post, you have mentioned that it is a good idea to include a 330 ohm resistor. Ok. It means that track can only supply up to 15milli ampere. I believe since I am using two pairs for RX and TX it is about 30milli ampere.
TX and RX using one Optical fiber? | Forum for Electronics
2006年1月6日 · You can transmit TX on one wave length and RX on different wave length and multiplex them to one optical fiber, or you can use so called PPLED (ping-pong LED) - see some details here:
RX Antenna VS TX Antenna length | Forum for Electronics
2018年3月2日 · 139,396. There is a best length for RX and TX which is theoretically the same and depends on the frequency being used. Often, the length is 1/4 wavelength. For transmitting there is an additional factor through: the transmitter output stage will be most efficient if it drives a matched impedance load. The length of the antenna determines it's ...