
Allen-Bradley 1746-OG16 SLC 500 16-Channel 5V DC TTL Output Module
Product Summary
The Allen-Bradley 1746-OG16 is a robust SLC 500 digital output module. It provides sixteen TTL channels for precise low-voltage DC control. This module requires an external 5VDC power supply for its output circuitry. It fits perfectly into a single slot of a SLC 500 chassis.
Expert Technical Evaluation & Performance Review

The 1746-OG16 operates within a strict voltage range of 4.5 to 5.5 Volts DC. This module delivers a continuous current of 24 mA per point. The total module current reaches 384 mA under full load. Engineers value its fast step response for critical timing applications. The input step response is 60 milliseconds for reliable signal capture. The output step response is a swift 2.5 milliseconds for quick actuation. This module handles TTL loads and sink-load displays with high precision. Its inverted logic requires a NOT instruction in your program. The data table allows you to monitor or force individual channels easily.
The 1746-OG16 withstands demanding industrial environments with ease. It operates reliably in temperatures from -13 to 140 degrees Fahrenheit. The module tolerates non-operating temperatures from -40 to 185 degrees Fahrenheit. It functions correctly in 5 to 95 percent relative humidity without condensation. The module resists vibration of 2g at 10 to 500 Hz during operation. It also handles shock up to 30g without performance degradation. This module suits environments with a pollution level no higher than Pollution 2. The off-state voltage sits between 4.5 and 5.5 Volts DC. The maximum off-state leakage current is only 0.1 mA for energy efficiency. The backplane current at 5 Volts is 180 milliamps for stable internal power.
Step-by-Step User & Installation Guide

Begin by inserting the module into a single slot of a SLC 500 chassis. The module connects directly to the backplane for power and communication. You must provide an external 5VDC power supply to enable the output circuitry. The sixteen channels share a single common terminal at the +VDC terminal. Wire your TTL loads or sink-load displays to the appropriate output terminals. Ensure all connections are secure before applying power to the system. Do not disconnect equipment while power is still applied to the module. An electric arc could occur in a dangerous area if you ignore this warning.
Configure the module using the data table in your programming software. You can view the data table in binary, decimal, octal, or hexadecimal formats. The default operation settings work well for most standard applications. You can modify parameters for a custom defined operation if needed. Remember that this output module has naturally inverted logic. You must use a NOT instruction in your program to negate this inversion. The programming environment allows drag and drop operations for easy setup. Always test your configuration with low-power loads before full deployment.
Logistics & Standard Packaging Details

- One (1) Allen-Bradley 1746-OG16 SLC 500 Digital DC TTL Output Module
- One (1) Product documentation sheet with basic specifications
- One (1) Anti-static packaging bag for safe transport
- Express delivery shipping is available via FedEx, UPS, and DHL.