1783-US6T2F Allen-Bradley 6 RJ45 2 Multimode Fiber Switch

Product Overview

The Allen-Bradley 1783-US6T2F is a versatile Stratix 2000™ unmanaged Ethernet switch designed for rugged industrial applications requiring both copper and fiber optic connectivity. This 8-port unit features six (6) Fast Ethernet RJ45 ports and two (2) multimode fiber SFP slots, providing high-speed data transmission and long-distance uplink capabilities. Its "plug-and-play" design allows for immediate network expansion without complex software configuration, making it an ideal choice for connecting remote I/O and field devices in harsh environments.

Technical Configuration

• Manufacturer: Allen-Bradley / Rockwell Automation
• Product Line: Stratix 2000
• Catalog Number: 1783-US6T2F
• Total Ports: 8 (6 RJ45 Copper, 2 Multimode Fiber SFP)
• Data Rate: 10/100 Mbps Fast Ethernet
• Power Input: 24V Nominal (18-60V DC / 18-30V AC)
• Protection: Class 2/SELV Power Supply Rated

Technical Specifications

Installation & Fiber Integration

1. Hybrid Connectivity: The 1783-US6T2F bridges the gap between local copper-based devices and remote fiber-optic segments. The two multimode fiber ports allow for secure, interference-free communication over longer distances than standard copper cabling, which is essential for large-scale industrial sites or high-EMI environments.

2. Extreme Environment Reliability: Engineered for durability, this switch features an expanded operating temperature range of -40°C to 75°C. This allows for installation in outdoor enclosures or unconditioned factory floors where standard commercial switches would fail. The compact 0.7 kg housing is designed for efficient heat dissipation without the need for internal fans.

3. Power Versatility: The module supports a wide input voltage range (18-60V DC or 18-30V AC), accommodating various industrial power standards. To maintain safety compliance, ensure the unit is connected to a Class 2 or SELV power source, providing stable current at approximately 442.3 mA.

Engineering Advantages

The Allen-Bradley 1783-US6T2F offers a robust "set and forget" solution for network engineers. By providing unmanaged operation, it eliminates the risk of misconfiguration in simple network segments. Its high power dissipation efficiency (less than 6W) minimizes the thermal load within control cabinets, while the inclusion of SFP slots provides the flexibility to swap fiber transceivers based on specific multimode distance requirements.

Technical FAQs

Q1: Are the SFP transceivers included with the 1783-US6T2F?
A1: Typically, SFP transceivers are sold separately to allow engineers to choose the specific multimode or single-mode distance rating required for their application.

Q2: Can I use this switch in a ring topology?
A2: As an unmanaged switch, it does not support Spanning Tree Protocol (STP) or Device Level Ring (DLR). It is best used in star or linear topologies.

Q3: Does this module require DIN rail grounding?
A3: Yes, for optimal EMC performance and protection against transients, the unit should be securely mounted to a grounded 35mm DIN rail.