Sampled I/O Splitter Pair

Double Your LCC Node Capacity with Seamless, High-Performance I/O Distribution

Unlock the full power of LCC Sampled Mode with the RR-Cirkits Sampled I/O Splitter Pair. This dual-board solution is specifically engineered to adapt the I/O port of an LCC node, making it fully compatible with both an input and an output device simultaneously. By balancing your inputs and outputs, you can effectively double the capacity of your existing nodes.

Key Features & Capabilities

• True Sampled Mode Power: Sampled Mode allows an input device and an output device to work independently on the exact same I/O line. Control 8 Tortoise switch machines while detecting 8 blocks—or manage 8 illuminated control panel buttons where the inputs and light indications handle completely different data (perfect for advanced route control!).

• Snap-Apart Dual Board Design: For maximum layout flexibility, this dual-board unit can be split in half, allowing you to use the two halves independently on two different I/O ports.

• Universal LCC Compatibility: While it integrates perfectly with RR-Cirkits hardware (like the Tower LCC or Signal LCC), it is fully compatible with the Sampled Mode options found on other manufacturers' LCC I/O ports as well.

• Simple Ribbon Cable Architecture: Connects via a standard ribbon cable to your LCC node, then splits into two separate ribbon cable runs—for example, routing directly to a BOD-8 SM for inputs and an SMD-8 for outputs.

Ideal Applications

1. Modernizing Historic Physical Layout Panels

Legacy control panels retrofitted with LEDs and resistors often run into issues because their original micro-switch contacts lack the $1\text{ k}\Omega$ resistors required for LCC Sampled Mode. This board bridges that gap, making normal contacts and high-current loads compatible with Sampled Mode. All existing connections to your restored panel can be directly replaced via ribbon cables without adding any complex intermediate circuitry.

2. Upgrading Legacy I/O Boards (LocoNet Migration)

Many older I/O boards originally designed for LocoNet are incompatible with Sampled Mode due to low-impedance outputs or excessive loading. The Sampled I/O Splitter solves this by driving high-current loads up to 25mA and allowing hard grounds to be used as inputs within a Sampled Mode environment. Now, you can bring your older hardware into the modern LCC ecosystem and enjoy doubled port capacity.

Technical Specifications Summary