Model :WL-11A 　WL-11C (with cable)
Features:
1 Channel passive video transceiver. Receiving and transmitting video signals over UTP cable without using the power supply.
Tech Info.：

Video
Common-mode/Differential-mode Rejection
15KHZ-6MHz: 60 db typ.
Impedance
Coax, male BNC: 75 ohm
UTP, Terminal Block: 100 ohm
Video format: NTSC/PAL/CCIR/SECAM
Wire Type
Network Wiring: One Unshielded Twisted Pair 24-16 AWG (0.5-1.31mm)
Category Type: 2 or better
Impedance: 100+/-20 ohms
DC Loop Resistance: 18 ohms per 100m
Differential Capacitance: 62pF/m max
Power: Not required
Environmental
Temperature: -20 to +75 C
Humidity (non-condensing): 0 to 95%
Mechanical
Dimensions: 55*25*25mm
Weight: 50g