Our 4/8/16-channel receivers are designed to distribute the maximum transmission rate per 4 ports. If all the devices are connected to 4 channels, the maximum transmission rate will be reduced to about 20% of the transmission rate in 1-to-1 connection. 

(For example, the maximum transmission rate of ECP-9501 is 95Mbps in case of 1: 1, but it would be about 20Mbps with ECP-9504R, ECP-9508R, and ECP-9516R.)​ 

Mostly, the coaxial cable is RG-59 / 5C-HFBT (75Ω), the twisted pair cable is Cat.5E UTP. 

. Check that the network cable is in good condition and has been assembled correctly.

. Confirm if the camera is IEEE802.3af/at PoE Compliant.

. Please check that the Ethernet length does not exceed transmission distance limitation of 100 meters.

. Check the PoE output Switch on the Transmitter is set to ON.

. Due to power drops on the cable, may need extra 56V power supply on the transmitter.​ 

. Check that the cable length does not exceed transmission distance limitation of 100 meters.

. Power the transmitter with separate power supply to check it turns on.​ 

. Check that the cable length does not exceed transmission distance limitation

(e.g 500 meters)

. Check the cable condition and ensure all BNC / RJ-45 connection are secure.

. Check if there’s any kind of signal booster, noise filter, repeaters, other amplifiers

for the signal on cable, if yes, please remove them before installation of the devices.​ 

. Check that the cable length does not exceed transmission distance limitation

(e.g 500 meters). Check the cable condition and ensure all BNC / RJ-45 connection are secure.

. Check if there’s any kind of signal booster, noise filter, repeaters,

other amplifiers for the signal on cable, if yes, please remove them before installation

of the devices.

. Check the Coax / UTP cable if it is shorted.​ 

. Check the Coax / UTP cable if it is connected properly.

. Check UTP cable order if it is correct (Cable order should be EIA/TIA-568B Type)

. Check if the password of the Local Node (Receiver)

and Remote Node (Transmitter) is matched.

. If the password of local node(Receiver) and remote node(Transmitter) is not matched

or unknown password is entered, please join the both devices again​ 

. Check the Coax / UTP cable if it is shorted. 

. Check if the power supply system is properly connected.

. Check the system input voltage from the power source.

. If the problem persists even after you have taken the above actions,

check power cable and replace it if necessary.​ 

. Check if the power supply system is properly connected.

. Check if coax / UTP cable is connected properly.

. Check if B-Linx / T-Linx Port LED is ON.

. Check if the network port is properly connected and the network setting is set correctly.

. Check the system for the input voltage from the power source.

. If the problem persists even after you have taken the above actions,

check the other network device settings (e.g. IP camera, NVR, etc)