Cisco Power Cube 3 Power Supply for 7800 & 7900 Series IP Phone (CP-PWR-CUBE-3) | New
SKU: CP-PWR-CUBE-3-N
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Overview of Cisco Power Cube 3 Power Supply (CP-PWR-CUBE-3) | New
Cisco IP phones do not ship with power supply because they are often powered by Ethernet cable through power over Ethernet switch, the power cord is to who do not have access to POE switch will require a the power supply to power the phone. The third generation power supply CP-PWR-CUBE-3 is the replacement of CP-PWR-CUBE-2 and CP-PWR-CUBE in 2005 as the standard power supply for all Cisco IP phones. The CP-PWR-CUBE-3 is almost identical in appearance to the earlier versions except for the color of the plastic tip around the power plug that is inserted into the back of the phone.
Cisco CP-PWR-CUBE-3 is compatible with virtually every phone Cisco makes except for the wireless IP phone, such as CP-792x and some older conference phones such as CP-7935, CP-7936. The first and second generation are not compatible with the newer versions of the 7900 series phones which is why the CUBE-3 is recommended.
Compatibility
Cisco 6921, 6941, 6961, 7902G, 7905G, 7910G, 7910G+SW, 7912G, 7931G, 7940G, 7941G, 7945G 7960G, 7962G, 7965G, 7975G and 7914 (also the earlier non-G models)
Cisco IP Phone 7811, Cisco IP Phone 7821, Cisco IP Phone 7841, Cisco IP Phone 7861, Cisco IP Phone 7902G, Cisco IP Phone 7905, Cisco IP Phone 7905G, Cisco IP Phone 7906G, Cisco IP Phone 7910, Cisco IP Phone 7910+SW, Cisco IP Phone 7910G, Cisco IP Phone 7910G+SW, Cisco IP Phone 7911G, Cisco IP Phone 7914, Cisco IP Phone 7920, Cisco IP Phone 7940, Cisco IP Phone 7940G, Cisco IP Phone 7941G-GE, Cisco IP Phone 7960, Cisco IP Phone 7960G, Cisco IP Phone 7961G, Cisco IP Phone 7961G-GE, Cisco IP Phone 7970G, Cisco IP Phone 7971G-GE, Cisco IP Phone 7985G, Cisco IP Phone 7985G NTSC, Cisco IP Phone 7985G PAL, Cisco Unified IP Phone 6901 Slimline, Cisco Unified IP Phone 6901 Standard, Cisco Unified IP Phone 6911 Slimline, Cisco Unified IP Phone 6911 Standard, Cisco Unified IP Phone 6921, Cisco Unified IP Phone 6921 Slimline, Cisco Unified IP Phone 6921 Standard, Cisco Unified IP Phone 6941, Cisco Unified IP Phone 6941 Slimline, Cisco Unified IP Phone 6941 Standard, Cisco Unified IP Phone 6945 Slimline, Cisco Unified IP Phone 6945 Standard, Cisco Unified IP Phone 6961 Slimline, Cisco Unified IP Phone 6961 Standard, Cisco Unified IP Phone 7902G, Cisco Unified IP Phone 7906G, Cisco Unified IP Phone 7910G, Cisco Unified IP Phone 7911G, Cisco Unified IP Phone 7912G, Cisco Unified IP Phone 7920, Cisco Unified IP Phone 7931G, Cisco Unified IP Phone 7940, Cisco Unified IP Phone 7940G, Cisco Unified IP Phone 7941G, Cisco Unified IP Phone 7941G-GE, Cisco Unified IP Phone 7942G, Cisco Unified IP Phone 7945G, Cisco Unified IP Phone 7960G, Cisco Unified IP Phone 7961G-GE, Cisco Unified IP Phone 7962G, Cisco Unified IP Phone 7965G, Cisco Unified IP Phone 7970G, Cisco Unified IP Phone 7971G, Cisco Unified IP Phone 7975G
Specifications
Specifications for Cisco Power Cube 3 Power Supply (CP-PWR-CUBE-3) | New
| Brand | Cisco |
| Item Dimensions | 0.02 x 0.02 x 0.02 inches |
| Item Weight | 0.02 Pounds / 0.32 ounces |
| Multiline Operation | Single-Line Operation |
| Caller Identification | No |
Frequently Asked Questions
Cisco Power Cube 3 Power Supply for 7800 & 7900 Series IP Phone (CP-PWR-CUBE-3)
Frequently Asked Questions (FAQ's)
What is the Cisco Power Cube 3 used for? The Cisco Power Cube 3 is an external power adapter designed to provide power to Cisco 7800 and 7900 Series IP phones when Power over Ethernet (PoE) is not available.
Which Cisco IP phone models are compatible with the Power Cube 3? The Cisco Power Cube 3 is compatible with select models in the Cisco 7800 and 7900 Series, including the 7821, 7841, 7861, 7941, 7961, and 7975 models.
Does the Cisco Power Cube 3 include a power cord? The power cube itself does not always come with a power cord. A separate AC power cord may be required based on regional plug types.
Can this power supply be used with other Cisco devices? It is specifically designed for Cisco 7800 and 7900 Series IP phones. Using it with other devices may not be supported.
What is the power output of the Cisco Power Cube 3? The output voltage of the Power Cube 3 is 48V DC with a power rating of 12W.
Does this adapter support Power over Ethernet (PoE) functionality? No, this power cube is used when PoE is unavailable. If your network switch supports PoE, the phone can be powered through the Ethernet connection instead.
Is the Cisco Power Cube 3 required for all Cisco 7800 and 7900 series phones? No, it is only required if PoE is not available on your network. If PoE is supported, a separate power adapter is not needed.
How do I connect the Cisco Power Cube 3 to my IP phone? Simply plug the power adapter’s connector into the phone’s power port and then connect the AC power cord to a wall outlet.
What is the difference between Cisco Power Cube 3 and Power Cube 4? The Power Cube 3 is primarily designed for the 7800 and 7900 series, while the Power Cube 4 is optimized for newer IP phone models, such as the Cisco 8800 series.
Can I use this power adapter internationally? Yes, but you may need a region-specific AC power cord or plug adapter depending on the country’s power outlet standards.
Does this power adapter provide fast charging for Cisco IP phones? The Power Cube 3 provides the necessary power for operation but does not include fast charging capabilities, as Cisco IP phones do not require rapid charging.
Is this an official Cisco power adapter? Yes, the Cisco Power Cube 3 (CP-PWR-CUBE-3) is an official Cisco-manufactured power adapter designed specifically for Cisco IP phones.
Can I use a third-party power adapter instead of the Cisco Power Cube 3? It is not recommended, as third-party adapters may not meet Cisco’s power and safety specifications, potentially causing damage or functionality issues.
Does the Power Cube 3 provide surge protection? While the adapter itself has basic protective features, it is recommended to use it with a surge protector for added safety.
What should I do if my Cisco Power Cube 3 stops working? Check the power outlet, verify the power cord connection, and ensure that the adapter is properly plugged into the phone. If it still does not work, replacing it with a new unit may be necessary.
How can I tell if my phone is receiving power from the Power Cube 3? When properly connected, your IP phone will power on, display the Cisco logo, and proceed with the boot-up process.
Does the Cisco Power Cube 3 generate a lot of heat during use? The adapter is designed to operate efficiently with minimal heat generation, but it may feel slightly warm during extended use.
Can I use this adapter with a power strip or UPS? Yes, the Cisco Power Cube 3 can be safely used with a power strip or an uninterruptible power supply (UPS) for backup power during outages.
Where can I buy a genuine Cisco Power Cube 3? You can purchase it from authorized Cisco resellers, online retailers, or directly from Cisco-certified vendors.
How long does the Cisco Power Cube 3 typically last? With proper use, the adapter can last several years. Lifespan may vary based on usage conditions and power fluctuations.