Installation; Wire Connections; Figure 4-5 Line Interface Unit - Installation Location - Motorola IRRInet-XL Owner's Manual

4.4 Installation

The unit is pre-installed in the horizontal snap in at the top of the frame (above the CPU
and I/O modules), See Figure 4-5.
Figure 4-5 Line Interface Unit – Installation Location
N o t e :
N o t e :
The RS485 adapter and Line Interface unit are installed in the same
place and are mutually exclusive, i.e. only one of these modules can
be installed in the RTU.
4.4.1

Wire Connections

Follow the Internal Connection instructions for all options and the specific External
Connection instructions corresponding to the option being installed.
Internal Connections
1. Connect communication cable FKN5953 between the port marked "FROM MODEM" of
the Line Interface Unit and Port 3 of the CPU.
2. Connect a grounding wire between terminal #6 of the TB connector located on the Line
Interface Unit and the protective ground strip located at the left side of the RTU housing.
Line Interface Unit
4-9