Can I ask if anyone has tried connected IP phones or ATA to a DC power supply.
From the Phone data sheet (E.g 7945 link below), it mentions that the power cube is a AC power supply and not able to connect to DC. But would anyone know if Cisco provides anything for DC? I know we can probably do a OEM power adaptor, but i'm afraid Cisco will not support if it does fail.
Please kindly advise.
Appreciate any comments or help.
Supports IEEE 802.3af PoE (Class 3). 48VDC is required; it can be supplied locally at the desktop using an optional AC-to-DC power supply (part number CP-PWR-CUBE-3=) or power injector (CP-PWR-INJ=). Local power options require a corresponding AC country cord (see Table 6).