We are about to switch ISPs and currently our ISP provides us with our CSU/DSU so we have purchased a new cisco 2611xm router with a WIC-1DSU-T1 card for our CSU/DSU. Currently our ISP uses a cable with RJ45 connectors on both ends to go from thier box on the wall to their CSU/DSU. We are switching to Bellsouth and they tell me their box/demark will have an RJ48 female jack. I know that an RJ45 cable can plug into an RJ48 outlet with no problem (not visa versa though). The WIC-1DSU-T1 CSU/DSU has a female RJ45 outlet on it. My quesion is what kind of cable to I need to go from the new Bellsouth RJ48 to the WIC-1DSU-T1. According to
i need a RJ-45 to RJ-45 straight-through cable (provided by customer) but will this work since the Bellsouth demark is actually a RJ48?? and will the inouts be correct??