... (18 ohms per 100m) *Surge suppression ---------*Control: Yes*UTP Port: Terminal Block*Weight: 100g/pair*Environment: Temperature:-10~+50oC, Humidity:0~95 ... DMV series transceiverWe recommend use 4 pair Unshielded Twisted-Pair cable,category 3 or higher,16-24AWG,multi-pair(6 pair ... )twisted pair is ok.If use STP(shield twisted pair) cable, the modular plugs need to useshielded too,make sure STP ...