ZyXEL Communications NBG4604 User Manual page 6

Battery Back-Up
This useful piece of kit provides back-up battery power, so if the mains power fails,
you will still be able to make telephone calls for up to eight hours. Please note that
Internet services are not supported when your ONT is running on battery back-up
power.
Patch Panel
This can be used to distribute data services throughout the home via internal
cabling. Using the patch cables between the socket and the ONT, you can deliver
services wherever they are needed in the home (for more on this see 2.4 A 'wired'
connection using the patch panel)
Telephony Master Socket and Telephone Adaptor
Applicable for voice services. Please see Telephone User Guide for more information.
6
routers
Internet User Guide- Zyxel NBG4604 Last Amended:11/03/2014