SPECIFICATIONS: Model Features LLT-201 Series -- 1 Channel passive video transceiver. Receiving and transmitting video signals over UTP cable without using the power supply. LLT202 Series -- 1 Channel passive video transceiver. Receiving and transmitting video signals over UTP cable without using the power supply. LLT-204 Series -- 4 Channels passive video transceiver. This device is capable of receiving and transmitting video signal over UTP cable. LLT213 Series -- 1 Channel passive transceiver. Receiving and transmitting video/audio/power over UTP cable. LLT-301T/R Series -- 1 Channel active video transceiver. This device is capable of receiving and transmitting video signal over UTP cable. LLT-302R/T Series -- 1 Channel active video and audio, 2 channels data or power transceiver. This device is capable of receiving and transmitting video/audio/power/PTZ signal over UTP cable. LLT-351T/R Series -- Video transmission via UPT CAT5 cable. Outstanding interference rejection/transient protection. Enables cost-effective. High quality image. LLT-401T/R Series -- 4 Channels active video transceiver. This device is capable of receiving and transmitting videos signal over UTP cable. LLT-410R /A -- 4 Channels active video/audio/power receiver. This device is capable of receiving video, audio and power DC 12V over UTP cable. LLT-1610R -- 16 Channels active video receiver. This device is capable of receiving video signal over UTP cable..