DB9 connectors were once very common on PCs and servers. DB9 connectors are designed to work with the EIA/TIA 232 serial interface standard, which determined the function of all nine pins as a standard so that multiple companies could design them into their products. This is a common standard connector used in USART, RJ45, or RS232. DB9 connectors were commonly used for serial peripheral devices like keyboards, mice, joysticks, etc. Also, they are used on DB9 cable assemblies for data connectivity. This DB9 male connector with 9 male pins on one side and 9 half-cylindrical pins on the other side to make soldering easier. It is commonly used when two controllers have to transmit information for long-distance through a wired connection. Also, it is used in Modems, Stepper Motor or Servo Motor interfaces, Telephones, etc. It is normally used along with the DB9 Female connector.
In RS232, we can differentiate pins in two categories, first data pins RXD and TXD to Transmit and Receive data and six of them are Control pins to establish an interface to avoid data loss and a reference ground pin. Control pins determine if there is receiver ready to receive data or when to request the data and when the data is to be sent so that no data be lost in this transmission process, and thereby increasing the reliability. It is an Asynchronous transmission so there is no shared clock between the devices. But the disadvantage is RS232 can connect only one device with one set of connections.
1×DB 9 Male Connector (9 pins connector)
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1. Damaged During ShipmentIf you receive a product damaged during shipment, please notify us within the 3 days of you receive the product, supported by the proper pictures and description. Once our support team accept the return, we will provide a replacement or a complete refund including the return shipping cost.
2. Wrong Item Shipped
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
Limitation of ReturnsWe don't accept the returns for the products damanged by improper use of the product. Moreover we don't accept the return, if the ordered product is not fit for any specific application. Please read the product specifications and datasheet before selecting and ordering a product. Returns are accepted only with 3 days from the date of delivery.
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