Table 7.7-1 Periodic Replacement Parts Having Defined Life Spans (T
able continued)
Part name
Part num-
ber
Recommended
replacement
cycle
Replace-
ment by
user
Remarks
Power supply unit for
fan unit
S9159FA 8 years Yes
100-120 V AC,220-240 V AC
At the ambient temperature of 40 deg.
C or lower on average
S9160FA 8 years Yes
24 V DC
At the ambient temperature of 40 deg.
C or lower on average
SFP optical module
(*3)
- - No(*2)
Recommended replacement period:
Every four years if in a G3 environ-
ment
*1: The replacement cycle for batteries includes the period during which the batteries remain unused in the battery unit.
*2:
Parts indicated by a "No" in the "Replacement by user" column cannot be replaced by the user, so please contact the service
department to request replacement work.
*3: Applies to SNT401, SNT411, SNT501, and SNT511.
<7.7 Parts Requiring Periodical Replacement > 7-33
IM 32Q06C10-31E 4th Edition : Jan.30,2015-00
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