... cable to achieve long distance transmission. l UTP cable termination follows the standard of IEEE-568B ... Port for firmware update or RS232 control signal transmission. l This model could be cascaded. Panel Descriptions 1. EX0101-H01 TOP Panel Front Panel ... RX 4,IR TX Back Panel 1,RS232 Port 2,LINK 3,UTP Output 4,Status of power ... RX 4,IR TX Back Panel 1,RS232 Port 2,LINK 3,UTP Input 4,Status of power ...