What Cisco IP phone models are compatible with the CP-PWR-CUBE-4 power supply?
It supports Cisco 8800, 8900, and 9900 Series IP Phones, including models like 8811, 8841, 8851, 8861, 8945, 9951, and 9971. Does the CP-PWR-CUBE-4 come with a power cord?
Yes, it includes a standard AC power lead. Is this power supply compatible with Cisco PoE-enabled phones?
Yes, it can be used as an alternative to PoE when a PoE switch is not available. What is the input voltage range for the CP-PWR-CUBE-4?
It typically supports 100–240V AC input at 50–60Hz. What is the output voltage and power rating?
The output is 48V DC at 0.38A, providing 18.5W of power. Can I use this power supply internationally?
Yes, with the appropriate regional power cord, since it supports international voltage ranges. Is this an official Cisco product or third-party compatible?
It may be a Cisco-branded or Cisco-compatible third-party model, depending on the vendor. What connector type does this power supply use?
It uses a standard DC barrel connector for Cisco IP phones. /li> Will this work with Cisco 7900 Series phones?
No, it is not compatible with 7900 Series models; those require different power cubes. Can this be used with a Cisco ATA adapter or SPA series phones?
No, those devices require different power supplies. Is this power cube hot-swappable?
No, you should power off the phone before connecting or disconnecting the adapter. Can this power supply be wall-mounted?
It’s a desk-style cube and not intended for wall-mounting. Can this power supply be used in VoIP lab setups?
Yes, it’s ideal for test labs or non-PoE environments. Does this come in different colors?
No, it is typically only available in black. How do I know if my phone needs an external power supply?
If not connected to a PoE switch or injector, a power cube is required. Is this RoHS compliant?
Most models, especially Cisco originals, comply with RoHS standards. Is it energy efficient or Energy Star certified?
Cisco original units are typically energy efficient but may not carry Energy Star certification. Can I use this for multiple phones at once with a splitter?
No, it is designed to power one phone only. What happens if I use a different power cube like CP-PWR-CUBE-3?
CP-PWR-CUBE-3 may not meet the power requirements of newer 8800 series phones—CP-PWR-CUBE-4 is recommended. Is this power supply backward compatible with older Cisco power adapters?
No, it’s designed specifically for newer Cisco IP phone models in the 8800, 8900, and 9900 series.