NEC NEAX 2400 ICS Features Manual page 60

A-21
Interactions
1. A four-wire TIE Line must be provided with the AUTOMATIC TRUNK TEST. See TIE LINE
ACCESS [T-3]
2. The test station must be located in the same LP as the PH-LTST circuit card.
Page 30
Automatic Trunk Test
for details of the required programming.
NEAX2400 ICS Business Features and Specifications
NDA-24143, Issue 4