Configured for unmanaged Ethernet packet forwarding in industrial automation architectures, the Allen-Bradley 1783-US8T (1783US8T Stratix 2000 Unmanaged Switch) provides direct physical/electrical execution.

Model Identifier & Suffix Matrix

• Base catalog model: 1783-US8T
• Order code variant: 1783US8T
• Hardware revision suffix: 1783-US8T/A
• Switch architecture: Stratix 2000 unmanaged series

Hardware Specifications

Industrial Control & Drive Integration

The unmanaged switch processes backplane bus communication velocity parameters to ensure deterministic data throughput across connected Allen-Bradley controllers. Profinet and EtherNet/IP deterministic networks integrate smoothly through wire-speed packet forwarding without requiring user configuration tables. Input and output density scaling requirements are supported transparently by maintaining constant link integrity across all 8 copper physical ports.

Ordering Information

• 1 x 1783-US8T Stratix 2000 Unmanaged Switch hardware unit
• 1 x Removable power supply connector block

Physical Installation & Field Wiring Guidelines

• Mount the switch vertically onto a standard DIN rail inside an industrial control enclosure, maintaining proper clearance for natural convection cooling.
• Terminate the incoming power supply wires securely to the removable terminal plug, verifying that DC voltage stays within 12-48 VDC or AC voltage within 18-30 VAC.
• Connect shielded Category 5e or higher copper Ethernet cables to the 8 RJ45 ports while observing maximum transmission distance limitations.
• Attach a low-impedance ground conductor from the designated chassis earth screw directly to the panel backplate to suppress electrical noise.

Frequently Asked Questions

• Q: Does this unmanaged switch support firmware flash updating or IP address configuration?
• A: No, the 1783-US8T is a layer 2 unmanaged switch requiring zero software configuration, firmware updates, or network address assignments.
• Q: What is the peak inrush current value during initial power-up sequence?
• A: The device draws a maximum inrush current of 1.31 A when initially energized from a stable DC or AC power source.
• Q: Can the unit be powered using standard industrial AC voltage supplies?
• A: Yes, the switch supports an AC input voltage range of 18-30 VAC at 50/60 Hz, with a maximum current draw of 500 mA.
• Q: What is the total power dissipation load during normal operation?
• A: The hardware consumes a nominal operating power level of 4.6 W under full port load conditions.
• Q: Are management protocols such as SNMP or VLAN tagging supported on this model?
• A: No, unmanaged switches lack management software features, meaning VLAN grouping, IGMP snooping, and SNMP monitoring are unavailable.
• Q: What physical connector type is utilized for all communication links?
• A: All 8 communication ports utilize standard RJ45 copper connectors supporting 10/100 Mbps auto-negotiation.
• Q: Is live hot-swapping permitted for Ethernet cables attached to the front ports?
• A: Yes, copper Ethernet patch cables can be connected or disconnected while the unit is fully powered without causing hardware damage.
• Q: What is the required mounting orientation inside an electrical cabinet?
• A: The switch must be mounted upright on a standard DIN rail to allow adequate thermal airflow across the internal circuitry housing.