RJ-45 to DB-25 cable adapters can be purchased from Digi. These adapters consist of a Digi 10-pin RJ-45 plug connected through a two- or four-foot cable to a DTE-configured DB-25 male connector. You can use DB-25 modem cables with the adapters for longer cable runs. Because these adapters use the standard Digi 10-pin RJ-45 plug and DB-25 connector configurations, they provide full modem support (Ring Indicator and Data Carrier Detect are available only on 10-pin RJ-45 connectors).