possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?

possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?
possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?
2020-08-25 21:38:40 - last edited 2020-08-27 03:39:25

I am currently setting up access points off of my router; I have one EAP225 I am experimenting with so far and want to add more later.

 

I notice that the "big brother" EAP245 has two ethernet ports; does that mean I can daisy chain?

eg: router --> PoE injector --> EAP245 --> EAP225

 

Also the EAP225-wall seems to have four (??) will this work:

eg: router --> PoE injector --> EAP225-wall  then two or three cables running to different EAP225?

 

Or even:  router --> PoE injector --> EAP245 --> EAP245 --> etc etc --> EAP245 --> EAP225

 

Will the PoE pass through to subsequent ones?

Will the current drawn be anough to start a fire?

I would be happy to buy a PoE switch if the little injectors that tp-link helpfully includes are not enought for this.

 

I understand that there is a data bottleneck, but in my case a single Cat5e cable has enough capacity for everything on my network; this is about distributing wifi access points not about wanting to stream a dozen 4K movies at once laugh

 

This would potentially save me some drilling of holes and fishing of cables, as oppopsed to having one dedicated cable from each AP back to the router.

 

Or perhaps I am just being silly, and the extra ethernet ports only to allow plugging in a device (eg: computer, camera, etc).

 

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Re:possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?-Solution
2020-08-26 09:30:31 - last edited 2020-08-27 03:39:25

@0mike, in short: no, this doesn't work. You cannot »daisy-chain« PoE through an EAP245's second LAN port.

 

Each powered device (PD) needs a direct connection to the power source equipment (PSE), no matter whether the PSE is a PoE injector or a PoE switch or a PoE pass-through port.

 

You could connect the LAN port of another PoE injector for an EAP225 to an EAP245's second LAN port, but you will lose the ability to define VLAN-mapped Multi-SSIDs on the EAP225. If you don't need VLAN-mapped Multi-SSID you can feed the data (but not PoE power) through an EAP245 to an EAP225.

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Re:possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?-Solution
2020-08-26 09:30:31 - last edited 2020-08-27 03:39:25

@0mike, in short: no, this doesn't work. You cannot »daisy-chain« PoE through an EAP245's second LAN port.

 

Each powered device (PD) needs a direct connection to the power source equipment (PSE), no matter whether the PSE is a PoE injector or a PoE switch or a PoE pass-through port.

 

You could connect the LAN port of another PoE injector for an EAP225 to an EAP245's second LAN port, but you will lose the ability to define VLAN-mapped Multi-SSIDs on the EAP225. If you don't need VLAN-mapped Multi-SSID you can feed the data (but not PoE power) through an EAP245 to an EAP225.

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Re:possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?
2020-08-27 03:37:37

@R1D2 

Thanks... I kind of suspected that would be the answer.

 

So the other ethernet ports (on the 245 or the 225-wall) are really intended for other devices like printers/computers/whatever that would get data only from the cable?

 

 

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Re:possible to daisy chain EAP245/EAP225 instead of a seaparate cable for each AP?
2020-08-27 07:38:45 - last edited 2020-08-27 07:46:22

 

0mike wrote

So the other ethernet ports (on the 245 or the 225-wall) are really intended for other devices like printers/computers/whatever that would get data only from the cable?

 

In my opinion, yes. For example, I just bought an EAP245 for my living room and I plan to use the second port to connect a smart TV by wire.

 

You can define a VLAN for the second LAN port of an EAP245, but since it cannot be a trunk port (member of more than one VLAN), Multi-SSID and Management VLAN probably won't work over this port, so if it is used to provide the data link to another EAP, those features can't be used on the second EAP (if I understand this correctly).

 

Take a look at the new EAP235-Wall. It has 3 downlink ports and one of it is a PoE pass-through port. Pass-through means that you can supply an 802.3af-compatible powered device (PD) if the EAP itself is powered by an 802.3at source. This could be used to power a VoIP phone or any other PD with a power consumption of up to 15.4 watts.

 

Other models which have PoE pass-through are CPE 2x0/5x0 (in some regions CPE210 V1 only, not V3). I use this pass-through port to power an EAP110-Outdoor connected to a CPE P2P backhaul link on the same antenna pole. Very handy for camping grounds etc.!

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