
THE UNILINK HOST ADAPTER
UNILINK HOST
ADAPTER1–3
USER MANUAL
Host
Computer
RS–232–C/RS–423A
Host
Interface
(Command Processor)
TIWA
Y I
Interface
External
Input Point
Output Point
TIWA
Y I
Network
Secondaries
UniLink
Host Adapter
Figure 1–3 UNILINK Host Adapter Block Diagram
Port
1
Port
2
Port
3
Port
4
AC
NEUT
AC
LINE
GND
1
2 3 4 5
I/O
Host
Computer Port
Power Connections
TIWA
Y I Ports
External I/O Points
PPX:500–711
1, Dual Local Line media ports shown here.
Figure 1–4 UNILINK Host Adapter Physical Features
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