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Chapter 1 Overview
The optical shared hub unit UTNH series (called the optical shared hub unit in this
manual) for the information and control network TC-net 100 constitutes TC-net 100
optical transmission lines. It employs an MT-RJ optical connector with 8 ports.
The hub unit also has one port for the RJ-45 modular connector, which may be
connected to a TC-net 100 (twisted pair) device. In using a single unit, use the optical
shared hub unit for line A transmission line UTNH23A (SNMP installed for TC-net 100) or
optical shared hub unit for line B transmission line UTNH23B.
External views and a system configuration example are shown below.
• UTNH23A: Master optical shared hub unit for line A transmission line (SNMP
installed)
• UTNH23B: Master optical shared hub unit for line B transmission line
Figure 1-1 External Views of Optical Shared Hub Units
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