Product Summary (186 characters)
The Allen-Bradley 1784-U2DHP is a high-performance USB cable designed for industrial programming. It connects your laptop directly to a Data Highway Plus (DH+) network. This device supports all PLC-5 processors except classic models. It replaces older adapters like the 1784-PCMK.
Theme A: Product Procurement & Buyer Guide
You need a reliable bridge between modern laptops and legacy DH+ networks. The 1784-U2DHP provides that exact solution with zero complexity. This cable draws power directly from your USB port. It requires only 5 Volts DC and 125 mA of current. This eliminates the need for external power supplies entirely.
The device supports three selectable communication rates for maximum flexibility. You can set it to 57.6 Kbps for distances up to 3048 meters. For shorter runs, you can use 115.2 Kbps or 230.4 Kbps. This makes the cable suitable for diverse plant floor layouts.
Procurement managers should note the cable's wide processor compatibility. It works with all modern PLC-5 processors and SLC 5/04 models. It does not work with classic versions like PLC-5/10 or 5/15. This cable directly replaces the old 1784-PCMK and 1784-PCM6 hardware.
The industrial-grade design features an IP30 enclosure for basic protection. It operates safely in temperatures from 0 to 55 degrees Celsius. The device handles Overvoltage Category II applications up to 2000 meters altitude. It must use a power source compliant with SELV and PELV standards.
Theme E: Comparative Analysis & Alternative Matrix
The 1784-U2DHP offers significant advantages over legacy adapters like the 1784-PCMK. The PCMK required a PCMCIA slot, which modern laptops lack entirely. This new cable uses a standard USB connection found on every computer. This shift dramatically simplifies setup and reduces hardware costs.
The 1784-U2DHP also replaces the 1784-PCM6 communication cable. This consolidation means one device replaces two older components. You save money and reduce inventory complexity with one purchase.
The cable's power dissipation is only 1.575 watts, which is very low. This low heat output ensures reliable operation over long programming sessions. The older adapters often required bulky external power bricks. This cable simply pulls clean power from your USB bus.
The communication rate switch offers three positions for network tuning. At 57.6 Kbps, you get a maximum network length of 3048 meters. At 230.4 Kbps, the max length drops to 762 meters. This flexibility allows you to optimize for speed or distance.
The DIN cable length is 2.44 meters, and the USB section is 0.61 meters. This total reach of over 3 meters provides good workstation mobility. The node address sets automatically on the first connection. This saves time compared to manual configuration with older devices.
Logistics & Standard Packaging Details
We ship all orders using express delivery services. You can choose FedEx, UPS, or DHL for fast shipping. This ensures you receive your critical automation hardware quickly.
57.6 Kbps is the slowest available communication rate. 230.4 Kbps is the fastest supported data rate.
