The 1756-EN2TR module provides EtherNet/IP connectivity. Use the tap to support linear, star, and device-level ring (DLR) topologies.
The module is configured by default to support linear and star topologies. When setting up a DLR, follow the steps in the Use the Module in a Device-level Ring (DLR) Network section on page 15 to avoid adversely impacting your network. Refer to the EtherNet/IP Ring Topology Application Guide, publication ENET-AP005 , for information on setting up EtherNet/IP network topologies.
Technical Specifications for the Allen Bradley 1756-EN2TR Communication Module:
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Module Type: 1756-EN2TR
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Communication Protocol: EtherNet/IP
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Maximum Voltage: 30 Volts (Continuous Open)
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Current Consumption: 3 milliamps
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Power Consumption: 5.1 Watts
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Operating Temperature Range:
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Maximum: 140°F (60°C)
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Minimum: 32°F (0°C)
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Transmitter Launch Power at Beginning of Life (BOL):
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Minimum: -19 dBm into 62.5/125 μm fiber
- N/A = 0.275
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Transmitter Launch Power at End of Life (EOL):
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Minimum: -22.5 dBm into 50/125 μm fiber
- N/A = 0.20
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