ICP DAS USA LinPAC-51 Series Quick Start Manual page 4

Turn on the LP-51xx power and the following message will be displayed to
indicate that the configuration process has been completed.
Press 'Enter', you will see 'linpac-51xx login:' prompt.
At the LP-51xx login prompt, enter the root ID and password (Default ID and
password is root).
ICP DAS LinPAC-51xx Quick Start - 4 -