These cables are for the Alinco DR135 radio to use with IRLP. The Alinco radio has everything built into the radio using the DB9 connector on the back of the radio. making it a truely plug and play radio for IRLP. Using this cable you will need to move the COS jumper on the IRLP card from high to low. These cables are made by me. I have a limited amount of these cables on hand. they are wired with DTMF and Aux1. price of the cable is $35.00 plus $5.00 shipping.