These are the settings for the EagleLink search library. This includes Cornerstone University, Puritan Reformed Theological Seminary, and Grand Rapids Theological Seminary.
In Bookends go to File>Import Filter Manager and press the plus button. Choose the Internet tab.
Name: Cornerstone University
Access: Library of Congress Z39.50 Gateway
Server address: eagle link.cornerstone.edu
Server port: 210
Database name: INNOPAC
Record syntax: MARC21
Record display: MARC
Text encoding: ANSEL
Choose your own searchable fields.