Hi all,
Has anybody powered either (or both) of PMP 450 AP or CMM4 via -48V DC. Most of the telco site these are installed in have -48V.
Any tips will be appreciated.
Eddie.
Hi all,
Has anybody powered either (or both) of PMP 450 AP or CMM4 via -48V DC. Most of the telco site these are installed in have -48V.
Any tips will be appreciated.
Eddie.
Eddie -
Other customers do this regularly. We have tested and recommend the following DC-DC converter for this purpose. Meanwell makes the SD series, which takes in -48VDC and outputs +24 VDC.
For CMM4 (to power up to 6 PMP 450 APs) you can use the 150W Meanwell device: SD-150-24C
For single AP power, you can use the 25W device: SD-25-24C
Hope this information helps,
Matt
Thanks, Matt. In the meantime, i've found a possible alternative locally.
It can take +/- 48V DC as input and output to 24V DC.
http://www.amtex.com.au/power_pdf/APK25-60.pdf (also attached)
Refer to model APK60 - 4824.
Will this suit?
Eddie.
You will have Just 60W.
In my opinion its sound fine for less than 3ap´s based in the output power.