1-Wire Bus SeaConnect 370 Interface Cable, RJ11 Connector, 6 Inch Length - Sealevel
RJ45 CAT5 ETHERNET 8P8C 8-PIN to RJ12 RJ11 6P6C 6-PIN PHONE NETWORK MALE CABLE ADAPTER FX464 - Walmart.com
Amazon.com: RJ45 to RJ11 Cable, 6 Feet Phone Jack to Ethernet Adapter RJ11 6P4C Male to RJ45 8P8C Male Connector Plug Cord for Landline Telephone : Electronics