Nortel DMS-100 Series Maintenance Manual page 401

Application
Use this procedure to replace the following card in the host interface
equipment (HIE) shelf.
PEC
NT2X70
Common procedures
The common replacing a card procedure is referenced in this procedure.
Action
The following flowchart is a summary of the procedure. To replace the card,
use the instructions in the procedure that follows the flowchart.
Suffixes Name
AA, AB, Power Converter (5V/12V)
AC, AD,
AE, AF
DMS-100 Family OPM Maintenance Manual XPM14 and up
OPM card replacement procedures 8-61
in an OPM HIE
NT2X70