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UTNH23A  optical shared hub unit UTNH series

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.
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Essential details：UTNH23A  optical shared hub unit UTNH series

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
TC-net 100 is a monitor and control LAN for the Integrated Controllers, which can be configured using optical fiber transmission lines and twisted-pair cable transmission lines. The optical shared hub unit is necessary for configuring optical fiber transmission lines, and connects TC-net 100 stations to the network.
The UTNH23A, which has SNMP for TC-net 100 mounted in it, permits diagnosis of the ports connected to the optical shared hub unit.
The standard TC-net 100 has dual transmission lines, of which line A is for connecting UTNH23A and line B for connecting UTNH23B.
The information and control network TC-net 100 has the following features.
• Open
The TC-net 100 is a monitor and control network featuring the open characteristic of the 100-Mbps Ethernet, collision averting function, and definitive time response.
• Communication service Communication service covers scan transmission (cyclic broadcast transmission and reception) for periodic control data transmission and ordinary message transmission.
• Scan transmission has three modes: High-speed mode, medium-speed mode, and low-speed mode. These modes can be assigned according to the data refreshing cycle to assure definitive real-time response.
• Message transmission is supported by not only TCP, UDP, and IP but also the Toshiba standard protocol PCMP.
• High reliability
High-reliability systems can be built by dual transmission line configuration. Electric or optical transmission lines can be selected.
Note: PCMP is the abbreviation of Process Control Message Protocol

UTNH23A

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UTNH23A  optical shared hub unit UTNH series

• AC connector
Power is supplied through this connector to the optical shared hub unit.The input voltage range is wide from 95 VAC to 250 VAC. A power supply sufficient for the power consumption of 0.6 A/100 VAC must be ready. The connector has a built-in fuse, which becomes broken by an overcurrent to shut off power supply. A burnt fuse must be replaced with a new one (250 V, 3 A, UL compliant). It is recommended that the fuse be periodically replaced even if it is not broken. (Refer to 6.3 Expendable Parts.) Use the shielded power cable supplied with the hub unit.
• RJ45 modular connector (TX-0)
This is an electric 8-pin modular connector for TC-net 100. Connect it to a station having an electrical interface with an enhanced category 5 twisted-pair straight cable. Connect to the optical shared hub unit, having an electrical interface with an enhanced category 5 twisted-pair cross cable.
• MT-RJ optical connectors (FX-1 to FX-8)
These are MT-RJ optical connectors for TC-net 100. Connect them to stations having an optical interface with optical fiber cords (GI quartz 62.5/125) with an MT-RJ connector.
• Connector for line A/B SNMP (DUAL)
This is an SNMP data communication connector for TC-net 100. It is used to connect dual hub units UTNH23A and UTNH23B to each other with the enhanced category 5 twisted-pair cross cable that is supplied with the UTNH23B.
• Ethernet connector (MENT)
This is an SNMP communication port. Connect it to a 100BASE-TX Ethernet card with an optional enhanced category 5 twisted-pair straight cable (one-to-one connection only) for communication with TC-net 100 stations.

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