1 —  ONT and MDU overview
1-20 March 2011 Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a
ONT Product Information Guide Edition 01 3FE 54199 AAAA TCZZA
1.6 ONT configuration using a web-based interface
Some Package C ONTs support additional limited configuration using web-based 
GUIs not included in section 1.5. By using the provided GUIs, the customer can 
perform the following configuration and reporting tasks: 
• Network (including LAN, WAN, and Wi-Fi service configuration)
• Advanced (including SNTP, DDNS, Port forwarding, and Firewall 
configuration)
• Maintenance (including password change, revert to factory default, reboot 
device, and upgrade tasks)
• Status (including the display of device info, WAN status, and PON Statistics 
information) 
The Package C ONT that supports limited configuration using web-based GUIs is the 
I-241W-P indoor ONT.
1.7 ONT physical security
Physical ONT security is provided to limit unauthorized access to remote or outdoor 
units. Tamper-resistant seals and bolts are used to secure the TELCO access cover to 
the ONT and to prevent easy access to the enclosure. Specialized security wrenches 
are required to open the pin-in Allen-type tamper-resistant screws. Certain models of 
indoor ONTs cannot be opened.
1.8 Rogue ONT defense
Fault or error conditions on a single ONT may disrupt the PON for other ONTs on 
the same PON. Figure 1-2 shows some possible failure conditions.
Figure 1-2  Rogue ONT failure conditions
18997
7342
LT
serial # 123abc
serial # 123abc
X
X
X
1) Watching timer
    to ensure laser is
    not stuck on or
    no laser until
    ONT s/w is ready
3) Bandwidth map
    CRC failure
ONT deactivates
ONT
ONT
ONT
Increasing
becdown
counters?
2)
2) If 2 ONTS report
    identical serial #s,
    both ONTS are disabled
X
PON