IP cameras over coaxial

Kdog115

Kdog115

n3wb
May 29, 2024
4
0
Philadelphia
Can coax carry more then one ip signal.?
Meaning if i convert an existing long run coax back to ethernet and then use a poe switch, can i get 2-4 signals back at the dvr?
 
Yes but with some rules and/or caveats.
At the POE switch end you'd need a POE Ethernet over Coax adapter, as you likely know.
Then at the camera(s) end, you'd need a POE-powered extender, essentially a POE-powered POE switch.
There will be POE current budget limitations, per port and total, depending on brand and schema used.

This POE over Coax converter has a 21W max at 100 meters:
【Upgraded】LINOVISION POE Over Coax EOC Converter IP Over Coax Max 3000ft Power and Data Transmission Over Regular RG59 Coaxial Cable for Upgrading Analog Surveillance System to IP Surveillance System

I have this unit in place for almost a year now. There are 4 port POE version of this unit.
Gigabit PoE Extender,Waterproof Casing Design 1 in 2 Out POE Repeater for IP Camera, PoE Amplifier, PoE Booster, Wall-Mount, IEEE 802.3at / 802.3af, Network PoE Signal Extender
 
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Thanks ! That Linovision is what i was looking at already !
Replacing an older analog system and was curious about saving some line pulling. There are some couplings in place, so thought id try the converters with one camera and then extend if signal looks good. Once im at the the end of the coax i wont be extending more then100 feet each ethernet, so i dont think ill need to much power from the poe switch. In the picture , the red is the existing coax, the yellow long line is where id use the adapters and then the switch to 3 new poe ip cameras.Existing Coax.jpg
 
TonyR said:
Yes but with some rules and/or caveats.
At the POE switch end you'd need a POE Ethernet over Coax adapter, as you likely know.
Then at the camera(s) end, you'd need a POE-powered extender, essentially a POE-powered POE switch.
There will be POE current budget limitations, per port and total, depending on brand and schema used.

This POE over Coax converter has a 21W max at 100 meters:
【Upgraded】LINOVISION POE Over Coax EOC Converter IP Over Coax Max 3000ft Power and Data Transmission Over Regular RG59 Coaxial Cable for Upgrading Analog Surveillance System to IP Surveillance System

I have this unit in place for almost a year now. There are 4 port POE version of this unit.
Gigabit PoE Extender,Waterproof Casing Design 1 in 2 Out POE Repeater for IP Camera, PoE Amplifier, PoE Booster, Wall-Mount, IEEE 802.3at / 802.3af, Network PoE Signal Extender
Click to expand...

Does this only work with certain rg types of coax?
 
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Kdog115 said:
Does this only work with certain rg types of coax?
Click to expand...

The listing for the device is as follows:

"IP Over Coax Max 3000 ft Power and Data Transmission Over Regular RG59 Coaxial Cable"

Thus the answer to your question is Yes, a cable with a characteristic impedance of 75 ohms would match the manufactures requirements. If a 50 ohm coax cable were to be used there would be an impedance mismatch. Thus it it best to stay with the manufactures recommendation.
 
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