2E1PCM30 equipment has been produced during 2002--2003. Now, 1U4E1PCM is to take the place of it. There are ten model equipment stored in the warehouse to be used for maintenance for some elderly users.

1UPCM30was made between 2000 and 2003. Now this module is not produced any more, which has been taken place by the 1U4E1PCM, There are ten model equipment stored in the warehouse to be used for maintenance for some elderly users.