10 — ONT technical specifications
Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06 July 2008 10-23
3FE 51892 AAAA TCZZA Edition 01 ONT Product Information Manual
Note
(1)
Maximum guaranteed length is 30 km.
10.12 Power consumption
The following sections describe power consumption ranges for Alcatel-Lucent
ONTs.
Outdoor ONTs
For all outdoor ONTs, you can connect input power using either the screw-down
terminals or the multi-position IDC connector. Battery alarm inputs are provided
using the IDC connector.
Typically, ringing a 5REN phone takes less than 4 W (2 seconds on/4 seconds off).
Ringing a typical phone takes less than 1 W.
All O-2xxx-x and O-4xxx-x ONTs that use power supplies require 12 V DC input
power supplies. All O-8xxx-x ONTs require 48 V DC input power supplies. See the
appropriate ONT data sheet for specific UPS support.
Table 10-26 provides typical power consumption specifications for outdoor ONTs,
based on the O-421E-A ONT, not including the SOHO outdoor ONT.
Rx wavelength Operating
temperature
1480 nm — 1500 nm
Rx reflection of equipment into ODN At Rx wavelength — — –20 dB
Rx BER PRBS 2E23-1 — Less than 1E
–10
—
Rx optical sensitivity for the ONT At ONT optical
port
–27.0 dBm — —
Rx optical overload At ONT optical
port
–8 dBm — —
Rx consecutive identical bits CW 72 bits — —
Rx tolerance to reflected optical
power
G.984 burst mode — — 10 dB
Item Detail Minimum Typical Maximum
(2 of 2)
Note — The following information is for ETSI customers only:
• Power propagating in the fiber is 3.16 mW out of the ONT.
• The maximum modulation frequency is 1244 MHz.
• Operating wavelength is 1310 nm nominal in the ONT.
• Operation time of the automatic power reduction of the ONT
transmitted optical power is 1 s or less.
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