Components and Interfaces
61187715G1-5B
13
Alarm Reporting
The
circuit
board
provides
alarm
reporting
for
the
Uninterruptible
Power
Supply
(UPS).
The
following
alarms
are
supported:
• Low
Battery
• Battery
Missing
• Replace
Battery
• On
Battery
ONT Interfaces
The
ONT
supports
the
following
interfaces:
• GPON
• 10/100/1000
Ethernet
Interfaces
• POTS
Interface
• RF
TV
• Power
GPON Interface
The
GPON
interface
consists
of
a
diplexer
device
for
optical
to
electrical
conversion.
It
supports
1.25
Gbps
upstream
and
2.5
Gbps
downstream
GPON
applications
per
ITU
‐
T
G.984.2.
The
diplexer
transceiver
is
a
physical
device
that
connects
the
SFU
to
the
passive
optical
network.
The
transceiver
consists
of
both
a
transmitter
and
receiver,
and
provides
the
following:
• Full
ITU
‐
T
G.984
compliance
• Downstream
traffic
(1490
nm)
• Upstream
traffic
(1310
nm)
Ethernet Interface
The
ONT
supports
data
services
through
two
10/100/1000
Base
‐
T
Ethernet
interfaces
via
the
front
access
RJ
‐
45
connectors.
The
Ethernet
interface
meets
IEEE
802.3
specifications
and
is
transformer
coupled
for
1500
V
isolation.
The
connector
has
built
‐
in
LEDs
for
data
activity
indications.
Both
full
and
half
duplex
modes
are
supported.
POTS Interface
The
ONT
supports
basic
telephone
service
through
two
POTS
interfaces.
Each
interface
is
supported
by
a
Two
‐
screw
Terminal
Bridge
or
an
RJ
‐
11
jack.
The
POTS
Interface
feature
set
is
listed
below:
• 5
REN
per
port
• Loop
start
• Loop
supervision
detecting
and
reporting
• 50,
60,
70
Vrms
integrated
ringing
•
μ‐
law
or
a
‐
law
voice
coding
