I ran Cat6 (shielded, flooded) between my house and detached garage. I'm terminating each side with ITW Linx CAT6A-75 primary protectors. Each building has ground rods within 20 ft. or less of the entrance protectors. Should I be using a spilt bolt to attach to the bare ground wire by the ground rod or can I use a zinc ground clamp and connect directly to the ground rod? I'm thinking that it does not matter but the cable company attached to the ground wire at the house side.