Using modular adapters with inexpensive silver satin or flat oval twisted pair wire has become a popular way to run client server applications. Needing to connect dumb terminals on the desktop back to a central patch panel or directly to a MUX via RS232, many network planners have implemented modular adapters as the most cost effective way to complete the connections.
C2g 02949 RJ45 to DB9 Male Modular Adapter - Red - 1 Pack - 1 x RJ-45 Female - 1 x DB-9 Male Serial - Red