When buying a serial cable, check for compatible ports and cable type, distance between devices, and cable structure. RS-232 is a common standard. Maximum working length affects data transfer. Choose the right cable for device type and consider budget. Shielded cables reduce electrical noise.
A serial cable is typically used to connect two devices so that data can be transferred via serial communication. Before buying one, it’s important to first determine if your devices have compatible ports and can be connected using the same type of cable. The distance of the two devices must also be considered so that the length of the cable can be determined. The structure of a serial cable must also be taken into consideration. Structure and length are important factors that often affect cable performance in data transmission.
Recommended Standard 232 (RS-232) is a standard for single-ended serial binary data and control signals. Computer serial ports generally use this standard. When purchasing a serial cable, it is often a good idea to make sure it supports RS-232. If the cable supports RS-232, it will most likely work and be compatible with most computer drives, old and new.
A serial cable can only operate at 100% capacity up to a certain length. This maximum working length often ensures that data is transferred without losing information or speed. Any length beyond this maximum working length can result in data loss or a slow connection. That’s why you need to consider the distance of the devices you’re connecting and the length of serial cable you need. If the distance between your devices exceeds this maximum working length, you can find more specialized types of serial cable, or you can move the two devices closer together.
RS-232 serial cables are typically manufactured with certain connectors that have varying numbers of wires depending on the required subset of RS-232 circuitry. Your needs in the structure of the serial cable will mainly depend on the type of devices you are connecting. A computer-to-computer connection requires a different type of cable than a connection between a computer and an external device such as a printer, scanner, or modem. Check the different configurations of your devices before choosing a cable. It is also recommended that you choose shielded cable to reduce the electrical noise radiating from the cable.
Your budget is another consideration when purchasing a serial cable. This is because in most computer configurations with multiple accessory devices, multiple types of serial cables are often required. Most standard serial cables are affordable at most computer stores. There are some specialized cables, however, such as null modem cables that may be priced a little higher.
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