Avaya Residential Gateway-I - Manual (Page 38)

A-2 Residential Gateway-I - Getting Started Guide
Specifications - Power Specifications
Power Specifications
Input Voltage Residential
Gateway-I 7 to 15V DC
Input Voltage Power
Adapter 100 to 240V +/- 10%
Power Adapter Types Subject to local standards. Available types:
AU, UK, US/JP, EU
Power Adapter
Frequency 47 to 63 Hz