Tele-Communication (Telecom) Terms Glossary and Dictionary
RS-530, also known as EIA-530 or TIA-530, is a balanced serial interface standard that generally uses a 25 pin connector. The specification defines the cable between the DTE and DCE devices. It is a replacement for EIA-449, which uses 37-pin connector. It is to be used in conjunction with EIA-422 and EIA-423.