POE switch and POE injectors. Questions.

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car_wash_guy

Young grasshopper
Nov 15, 2015
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Question about injectors and a switch. Coming up on installing my PTZ's and had some questions.

It was suggested that "I run them (injectors) instead of going directly to the switch".

1. I would assume that the injectors are placed between the POE switch and the PTZ(in this case) camera?
2. Is there a best location for the injectors? PTZ's are ~100' away from the switch. Does it matter if I install them at the switch location instead of closer to the PTZ's ( in attic - worried about equipment failures due to excessive heat).

Thanks
 
car_wash_guy said:
Question about injectors and a switch. Coming up on installing my PTZ's and had some questions.

It was suggested that "I run them (injectors) instead of going directly to the switch".

1. I would assume that the injectors are placed between the POE switch and the PTZ(in this case) camera?
2. Is there a best location for the injectors? PTZ's are ~100' away from the switch. Does it matter if I install them at the switch location instead of closer to the PTZ's ( in attic - worried about equipment failures due to excessive heat).

Thanks
Click to expand...
Yes after the switch before the camera. The only advantage to running a midspan injector is price...its not better in any other way..You have to deal with an extra set of wiring and the midspan itself..It doesnt matter where you place it....in your case i would put it near the switch...
 
fenderman said:
Yes after the switch before the camera. The only advantage to running a midspan injector is price...its not better in any other way..You have to deal with an extra set of wiring and the midspan itself..It doesnt matter where you place it....in your case i would put it near the switch...
Click to expand...

Thanks fenderman.

Do you think I need the injector? Here is the switch I'm running:

http://www.ltsecurityinc.com/poe-switch-poe-sw2402.html

It's 802.3at/af and 30w per port.

Thanks
 
car_wash_guy said:
Thanks fenderman.

Do you think I need the injector? Here is the switch I'm running:

http://www.ltsecurityinc.com/poe-switch-poe-sw2402.html

It's 802.3at/af and 30w per port.

Thanks
Click to expand...

It depends on the PTZ you are using. Most of the smaller PTZ cameras use less than 15 watts but the bigger PTZ Hikvisions for example use alot more, especially when the IR's are in use. In which case you would have no option only to use an injector.

What PTZ are you installing ?
 
littlebandit said:
It depends on the PTZ you are using. Most of the smaller PTZ cameras use less than 15 watts but the bigger PTZ Hikvisions for example use alot more, especially when the IR's are in use. In which case you would have no option only to use an injector.

What PTZ are you installing ?
Click to expand...
That poe switch supports poe+ 30w...
 
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