Termination Resistors are required on a NMEA 2000 network and are placed at each end of a network trunk cable. Like the double-ended cordsets, the termination resistors are waterproof and continue to function even while submerged in the bilge. Diagnostic versions indicate correct polarity at a glance to ensure power connections have been made properly Screw connector for positive connnection Termination resistors are used to terminate both ends of the trunk line Specifications: Connection Gender: Male Data Interface: NMEA 2000 Box Dimensions: 1"H x 1"W x 1"L WT: 0.1 lbs UPC: 873804002361