DDN Storage SFA7700X - Page 20

© 2016 DDN STORAGE. P/N 15-000836-001 SFA7700 CMOS and Backup Battery Replacement Instructions | 20
Day
Code
Day
Code
Day
Code
Day
Code
1
1
9
9
17
H
25
P
2 2 10 A 18 I 26 Q
3
3
11
B
19
J
27
R
4
4
12
C
20
K
28
S
5
5
13
D
21
L
29
T
6
6
14
E
22
M
30
U
7
7
15
F
23
N
31
V
8
8
16
G
24
O
Table 3 – Battery pack day codes
Using the example in figure 23 above, where the serial number is USPLE000395RR009. The date of
manufacture follows ‘000’ and is represented as ‘395.’
Y
M
D
3
9
5
2013 September 5
Table 4 – Calculating the date of manufacture
Breaking down this number in table 4, the manufacture date is September 5, 2013.
Later versions of the battery packs include a human-readable form of the date in addition to the
encoded date (Figure 24) .
Figure 24 – Human-readable date
.