NEC SL2100 - Page 10

SL2100 GETTING STARTED GUIDE
6
2.2
Disposables and Periodic-replacement Parts
Many parts, such as batteries, backup batteries, fuses and displays need to be replaced
on a periodic basis. In the event of sudden traffic, a part that is past due for replacement
might lead to a system failure and damage to the system.
A service contract with the dealer or its service technician to monitor the replacement
cycles and to supply the replacement parts and the necessary disposables is
recommended.