Router Battery Backup

r00igev@@r said:
Excellent - that will do but why is the iphone a no-no???? I also saw this one: https://www.pishop.co.za/store/powe...-5v-converter-dc-dc-3a-step-down-power-module
Click to expand...

That one also seems fine, or even better than what I linked. Cannot comment on the not for use on iPhone, iPod and Samsung Galaxy S4 - that is odd. Did a quick search on the interwebs and could not find anything odd. The iphone/ipods etc use 5.1V afaik, but this has never been an issue for me. Have charged plenty of iphones on my 5v usb charger(s).
 
The Ratel 460p looked ideal until I found out that my Ubiquiti AC Pro access point uses passive 48V POE. :unsure:

The Ratel units are very well priced - one can't purchase and build an equivalent system cheaper. The 18650 batteries alone cost nearly as much as the complete units.
 
GoB said:
It was for remotes which arm/disarm/panic button the existing alarm from the previous owner... like 7 years ago.
Click to expand...
I asked because I want to remotify ( :) ) my alarm. The wife is complaining about first having to go into the house to disarm the alarm before she can open the garage door to pull the car in. I have the exact same receiver that you have there in the pic lying somewhere in my garage. The last time I had it connected to my gate and it would open the thing at random times. I've ruled out that it might be a case of someone else's remote being on the same frequency as I had it changed numerous times
 
Honey Badger said:
I asked because I want to remotify ( :) ) my alarm. The wife is complaining about first having to go into the house to disarm the alarm before she can open the garage door to pull the car in. I have the exact same receiver that you have there in the pic lying somewhere in my garage. The last time I had it connected to my gate and it would open the thing at random times. I've ruled out that it might be a case of someone else's remote being on the same frequency as I had it changed numerous times
Click to expand...

If I find out how to sync the remotes to the receiver again I'll let you know. I think I figured it out via Google previously. Thought you'd tell me how insecure it is. :)

It did work - I had an LED above my garage door to check the state.

But I bypassed my in-garage IR sensor instead... there's a jumper for that on/in the sensor itself.
 
Honey Badger said:
I asked because I want to remotify ( :) ) my alarm. The wife is complaining about first having to go into the house to disarm the alarm before she can open the garage door to pull the car in. I have the exact same receiver that you have there in the pic lying somewhere in my garage. The last time I had it connected to my gate and it would open the thing at random times. I've ruled out that it might be a case of someone else's remote being on the same frequency as I had it changed numerous times
Click to expand...
You could add an entry delay to the garage.
 
PsyWulf said:
Wat
No
help.ubnt.com

UniFi - Supported PoE Output and Input Modes

Overview This article provides tables with information on the supported Power over Ethernet (PoE) output and input modes for UniFi Switches, Access Points, Cloud Keys and Cameras. NOTES & RE...
help.ubnt.com help.ubnt.com
802.3af PoE 802.3at PoE+
Active PoE
Click to expand...

Ah so 24V PoE is "passive"
I need 802.3af which is 48V.
Looks like I'll need a DC-DC step-up circuit to bump 12V up to 48V and feed that into a 802.3af PoE injector like the TP-Link TL-POE150S.
Can't seem to find any 12V to 802.3af PoE injectors.
 
Last edited:
Paul_S said:
Ah so 24V PoE is "passive"
I need 802.3af which is 48V.
Looks like I'll need a DC-DC step-up circuit to bump 12V up to 48V and feed that into a 802.3af PoE injector like the TP-Link TL-POE150S.
Can't seem to find any 12V to 802.3af PoE injectors.
Click to expand...
I have the same problem. Closest I could find is from Tycon Systems but it is pricey (some models are on Amazon).

 
Paul_S said:
Ah so 24V PoE is "passive"
I need 802.3af which is 48V.
Looks like I'll need a DC-DC step-up circuit to bump 12V up to 48V and feed that into a 802.3af PoE injector like the TP-Link TL-POE150S.
Can't seem to find any 12V to 802.3af PoE injectors.
Click to expand...
Here you go. But at R2,500 I might as well replace my UPS and/or camera.

pclinkshop.com

Tycon Systems TP-DCDC-1248GD 48V DC Out 17W DC to DC Converter and POE Inserter44; Gigabit

48V 16.8W 802.3af Gigabit PoE Inserter || 9-36VDC Wire Terminal Input || Dual Inputs for Connecting 2 Power Sources || Integrated 10/100/1000MB PoE Inserter || Applications: 48V Battery Systems, Vehicle Applications; Wireless Access Points and Client Devices; IP Phone and Security Camera Systems
pclinkshop.com pclinkshop.com
 
biometrics said:
Or this:

Amazon.com: Procet Single Port Industrial Gigabit Boost Power Over Ethernet PoE Injector 30W 55V,Wide Temperature,6KV Surge Protection, 12-48Vdc Input, Din Rail Installation 802.3af,802.3at, PT-PSE105G-E: Computers & Accessories

Amazon.com: Procet Single Port Industrial Gigabit Boost Power Over Ethernet PoE Injector 30W 55V,Wide Temperature,6KV Surge Protection, 12-48Vdc Input, Din Rail Installation 802.3af,802.3at, PT-PSE105G-E: Computers & Accessories
www.amazon.com
Click to expand...

Ouch! $72 (R1029) excluding shipping and import duties.

I'll get a DC-DC step-up converter from eBay for R60 (free shipping) and feed a TP Link TL-POE150S PoE injector (802.3af compliant + Gigabit ethernet).
Total = R369

BotShop also has a suitable DC-DC step up converter but it's a bit of an overkill if one only needs 10 or 15W of PoE power. https://www.botshop.co.za/product/600w-step-up-boost-power-module/
 
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