Description
The Cisco PSC18U-480 is a switching power adapter designed to provide DC power to compatible networking and communication equipment. With a 48V DC output and a compact design, it is suitable for supported devices that require this specific power supply.
The adapter delivers 48V DC at 0.38A, providing approximately 18W of output power. Its 5.5mm × 2.5mm barrel connector provides a standard power connection for compatible equipment.
This adapter is suitable as a replacement for a lost, damaged, or faulty power supply. Before purchasing, verify your device’s voltage, current, connector dimensions, and polarity requirements to ensure compatibility.
Technical Specifications
- Brand: Cisco
- Model: PSC18U-480
- Cisco Part Number: 341-0206-03
- Product Type: Switching AC Power Adapter
- Output Voltage: 48V DC
- Output Current: 0.38A
- Power Rating: 18W
- Input Voltage: 100–240V AC rated
- Input Frequency: 47–63Hz
- Connector Size: 5.5mm × 2.5mm
- Connector Type: DC barrel plug
- Output Polarity: Center positive
- Condition: As Listed
Compatibility & Installation
This adapter is designed for compatible Cisco networking and communication equipment that requires 48V DC power and a matching barrel connector.
Before use, verify the device’s required voltage, current, connector size, and polarity. Do not use the adapter with equipment requiring a different voltage or connector configuration.
Performance
The 18W switching power supply converts AC mains power into 48V DC output for compatible equipment. Its regulated output and built-in protection features support reliable operation when used within its specified ratings.
Recommended Use
- Compatible Cisco networking equipment
- Supported Cisco IP phones and communication devices
- Replacement for a faulty PSC18U-480 adapter
- Compatible equipment requiring 48V DC at 0.38A
- Networking and communication power applications





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