example
P@Q@P@|@ROOO
*a *b *c @@@@*d
*a : series number
0 to 8 , 9 is used for trial production
and for the maintenance. Indication doesn't
have it in the case of the zero , and the
car of JR-east new products give the
character of "E" before the number.
*b : equipment@
| number | facilities |
| 1 | Green car |
| 2 | Ordinary car |
| 3 | Dining car or Buffet and ordinary car |
| 4or5 | Double deck green car |
| 6 | Double deck dining car |
| 7 | Double deck green and ordinary car |
*c : operation and motor classification@
| number | with operatinon room | with motor | with pantograph |
| 1 | | | ~ |
| 2 | | | |
| 3or4 | | ~ | ~ |
| 5or7 | ~ | | ~ |
| 6 | ~ | | |
| 8or9 | ~ | ~ | ~ |
*d : manufacture number
Though it is usually a turn from No.1, for example it is distinguished by the specification in the number such as the 500's,the 1000's. And the 900's are used for the preceding trial production car again.