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DP-1520P/1820P/1820E
SEP 2004
Ver. 1.2
1.5.1. Serial Number Contents
The contents of the 11-digit Serial Number is as follows:
2 3 4 5 61
Sequential Production Number
5-Digit Sequential Production Number
00001 ~ 99999 = 1 ~ 99,999 units
A0001 ~ Y9999 = 100,000 ~ 329,976 units
(Letters I and O are skipped)
3-Digit number or alphanumeric representation
(Except Letters I and O)
For Example:
= DP-1520P-PU 3SK = DP-1520P-PB
= DP-1820P- PU 3SM = DP-1820P-PB
Production Facility
Production Year
Starting with Year 2001, the last 2-digits of the year is
represented as: A ~ T
A : 01 (2001) K : 11 (2011)
B : 02 L : 12
C : 03 M : 13
D:04 N:14
E : 05 O : 15
F : 06 P : 16
G:07 Q:17
H:08 R: 18
I : 09 S : 19
J : 10 (2010) T : 20 (2020)
Production Month
A : January G : July
B : February H : August
C : March I : September
D : April J : October
E : May K : November
F : June L : December
7 8 9 10 11
Model Number and Destination Code (Main Unit)
3SN
3SL
3SP = DP-1820E-PU
3SV = DP-1820E-PB