Procedure 
3FE-49441-ABAA-TCZZA
 
Issue 1
 
 
 
3 
Power down the unit by using the on/off power switch. 
 
4 
Disconnect the POTS, Ethernet, and power cables from the ONT; see   Figure 7-1, “G-2426G-B 
indoor ONT connections” (p. 89) for the connector locations on the G-2426G-B indoor ONT. 
 
5 
 
DANGER 
 
 
Hazard 
 
Fiber cables transmit invisible laser light. To avoid eye damage or blindness, never look directly 
into fibers, connectors, or adapters. 
Disconnect the fiber optic cables. 
a. Unplug the fiber optic cable with SC/APC connector from the bottom of the ONT. 
b. Attach a fiber dust cover to the end of the SC/APC connector. 
 
6 
Replace the old ONT with a new ONT on a flat surface, such as a desk or shelf. 
 
7 
Connect the Ethernet cables directly to the RJ-45 ports; see  Figure 7-1, “G-2426G-B indoor 
ONT connections” (p. 89) for the location of the RJ-45 ports. 
 
8 
Connect the POTS cable directly to the RJ-11 port as per local practices; see   Figure 7-1, “G- 
2426G-B indoor ONT connections” (p. 89) for the location of the RJ-11 ports. 
 
9 
 
DANGER 
 
 
Hazard 
 
Fiber optic cables transmit invisible laser light. To avoid eye damage or blindness, never look 
directly into fibers, connectors, or adapters. 
If required, have approved service personnel who are trained to work with optic fiber clean the 
fiber optic connection. See the Nokia ONT Configuration, Management, and 
Troubleshooting Guide for more information about fiber optic handling, inspection, and 
cleaning.