In general, the hardware of a CS 1000M (TDM-based CS 1000) or Meridian 1 (precursor to the CS 1000) can migrate to CS 1000E. CS 1000E is the CS 1000 with entire IP connection between the controlling server and the analog and digital line cards. Devices that migrate to a CS 1000E can migrate to Device Adapter with the caveat that trunking hardware is not needed and a few specific additions, such as the attendant consoles, are not used.

The first two topics in this section provide information about additional hardware, including cables, needed to migrate from the Meridian 1 and CS 1000M to Device Adapter. Note that these hardware elements should already be present in a CS 1000E, although the vintage may need to be changed. That is, if a specific card such as an MG-XPEC is a lower vintage than the supported card, the card must be replaced with the supported card. Any additional associated cards, such as the XSM, or cables need to conform as well.