Toshiba TC-net 100 - Expendable Parts

34 Information and Control Network TC-net 100 Optical Shared Hub Unit UTNH23A/B User’s Manual
Chapter 6 Maintenance and Inspection
6
6.3 Expendable Parts
It is necessary to periodically replace expendable parts to keep the product in good, safe
condition for a long period of time. Consult your nearest Toshiba service shop for advice
on their replacement.
Table 6-2 shows the expendable parts and their replacement periods.
Note: Remember high ambient temperature will shorten the service life of the parts.
Table 6-2 Expendable Parts and Recommended Replacement Periods (at 25
o
C)
Part Name Recommended Replacement Period
Organic semiconductor aluminum
solid electrolytic capacitor
15 years
Power module 7 years
Electric double-layer capacitor 7 years
Fuse (in power inlet) Replacement every 5 years is recommended
Optical transceiver module Measuring optical output power every 10 years is
recommended
Switches, connectors Sample check every 10 years is recommended
for preventive maintenance.