These cables are for the 5 pin Motorola Maxtrac radio to use with IRLP. The Motorola radio will need to be modified for COS and routed to pin 1 on the mic jack. 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.