Allen-Bradley 1783-US08T Stratix 2000 Switch

Configured for deterministic data routing in industrial Ethernet networks, the Allen-Bradley 1783-US08T (1783-US08T Stratix 2000 Switch) provides direct physical/electrical execution of high-speed packet switching across 8 RJ45 ports.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The 1783-US08T serves as the primary unmanaged switch utilized to execute traffic segmentation across EtherNet/IP platforms. The device supports standard 5E cabling (2 or 4 pair) for reliable signal propagation at 10/100 Mbps. Its hardware architecture is optimized for low-latency frame forwarding, which is required to maintain deterministic timing for control-level traffic. Firmware flash compatibility is not applicable to this unmanaged model, simplifying deployment in static network topologies. Users must ensure that the total cumulative bandwidth of connected field devices does not exceed the port capacity to prevent packet collisions and frame buffering delays during peak utilization.

Frequently Asked Questions

Q: Does the 1783-US08T support IGMP snooping or advanced traffic prioritization?

A: No. As an unmanaged switch, the 1783-US08T operates on a store-and-forward basis without configurable traffic management features like IGMP snooping or VLAN tagging.

Q: Is this switch capable of being powered by redundant power supplies?

A: Yes, the switch accepts dual input power to facilitate redundant power sourcing. This ensures the unit remains operational in the event of a single supply failure.

Field Installation Guidelines

1. Mount the switch on a 35 mm DIN-rail, ensuring proper orientation for vertical airflow to facilitate passive heat dissipation.
2. Connect the 20 VAC or 24 VDC power supply to the redundant input terminals; verify that the supply is rated for the 2.2 A inrush current requirement.
3. Use shielded 5E Ethernet cabling for connections; terminate shields to the chassis ground terminal to mitigate electromagnetic interference (EMI).
4. Limit cable length to 100 meters per port to comply with IEEE 802.3 standards and avoid signal attenuation.
5. Ensure the switch enclosure is properly grounded to the cabinet's protective earth bus to satisfy 30 V isolation requirements.
6. Verify link activity using the status LEDs located on the front panel before commissioning the network nodes.