4.10 Connection of Peripherals
Maximum current: 500 mA
For details about backing up and restoring using a USB memory device, refer to "6.1.1 Tool—System Data
Backup—Backup to USB" in the PC Programming Manual.
Do not use a USB hub when connecting a USB memory device to the PBX.
Using a UPS
A UPS is a device that supplies power for several minutes to a connected device when a power failure occurs.
For details about connecting a UPS to the PBX, refer to "Connecting an Uninterruptible Power Supply
When connecting a UPS, use only the USB cable included with the UPS, and do not use a USB hub.