I-E96-424A
Preface
The Digital I/O Termination Unit (TDI) is an interface for INFI
90
®
Process Management System I/O signals. It provides the
physical connection points for process field wiring, and config-
ures the system I/O signals.
This instruction describes the purpose, features and specifica-
tions of the termination unit. It details the procedures to follow
to set up and install the termination unit, and explains mainte-
nance and replacement procedures.
The system engineer or technician using the TDI should read
and understand this instruction
before
installing and config-
uring the termination unit. In addition, a complete under-
standing of the INFI 90 system is beneficial to the user.
® INFI 90 is a registered trademark of the
Elsag Bailey Process Automation
.