Openreach ONT, Developer'S Manual

Page: 4 / 52

4
Openreach: Developer Guide
Internal equipment
Legacy ONT
The legacy ONT was the previous piece of
equipment used before the introduction of the
1+1 in January 2018.
This ONT is mounted directly to the wall and has
no associated enclosure.
• Optical port connects to the external
Customer Splice Point.
• Ethernet ports connect to the CP router.
• Telephony ports connect to voice network.
155mm
195mm
Optical
port
Ethernet
ports
Telephony
ports
The CSP houses
the external
connectorised
fibre cable and
the connected end
that fits into the
ONT. The CSP sits
of the outside of
the house.
Where you self-install there will be no internal
CSP, instead the connectorised cable will plug
directly into the ONT. If the connectorised
cable end is damaged during installation
then an internal CSP may be required to be
fitted to complete installation. This will be
undertaken at the commissioning stage by
Openreach. Your Field Based Co-ordinator
(FBC) will guide you through this.
BBU
The battery backup
supports voice calls
for approximately
one hour should
there be any
interruption to the
mains power supply.
A red warning light
will flash when
a replacement
battery is required.
Openreach
warranties the battery
for 90 days, where
it then becomes the
responsibility of
the home owner.
Customer Splice Point (CSP)