Cisco DB25 Male to DB9 Male Modem Adapter, 29-4043-01
This DB25 to DB9 adapter can be used to connect a standard DB9 to RJ45 Console cable from your Cisco device to an external modem for remote management.
By connecting the DB25 male side of this adapter to your modem you are left with a Male DB9 connection to connect the female DB9 end of your console cable. Then connect the RJ45 end of your console cable to the console port of your Cisco device for remote management ability!