NEC FP1355 Service Manual page 119

SERIAL NUMBER INFORMATION SERIAL NUMBER INFORMATION SERIAL NUMBER INFORMATION SERIAL NUMBER INFORMATION
Refer to the serial number information shown below.
Manufactured Year: 0 to 9
(Last digit)
Manufactured Month: 01 to 12
Control Code: 0 to 9 or A to Z
(It is possible to use fixed no. for same destination
if model name is same.)
Running No.: 00001 to 99999
Ex.) Rating label
Model name: FP1355
Model NO.: NSZ2102STTUW
Serial No. Manufactured
********
8 8 8 8 0 9 0 9 0 0 0 0 0 0 0 0 1 0 9 0 9 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1