![background image](http://html.mh-extra.com/html/adtran/1287802f1/1287802f1_physical-installation-manual_2854706052.webp)
Maintenance
52
61287802F1-34B
Revision B
8 Maintenance
The GPON 452/454 does not require routine maintenance for normal operation. Do not
attempt to repair the GPON 452/454 in the field. Repair services are obtained by returning the
defective unit to ADTRAN. Refer to
““Warranty and Contact Information”
for further
information.