DTE/DCE Back to Back DB60 Crossover Cable
This also called a DTE/DCE crossover cable or DB60 to DB60. This is used to connect two serial ports together in a Cisco CCNA, CCNP & CCIE certification lab to simulate a WAN connection.
Compatible with the following series: 1800, 2800.
Not compatible with the following series: 1900, 2900, 4000.