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The Allen-Bradley 1746-OG16 is a 16-point current-sinking TTL (Transistor-Transistor Logic) output module designed for use within the SLC 500 programmable controller system. This module provides reliable, high-speed output switching for applications requiring standard 5V logic level signals.

Features

  • 16 independent output channels for versatile control integration.
  • Current-sinking configuration compatible with TTL-level devices.
  • Designed specifically for the Allen-Bradley SLC 500 chassis-based I/O architecture.
  • Compact modular design for efficient rack space utilization.

Technical Specifications

Product Model 1746-OG16
Module Type TTL Output Module (Current Sinking)
Number of Outputs 16
Voltage Range 4.5 to 5.5 VDC
Backplane Current (5V) 180 mA
Current per Output 24 mA
Total Current per Module 384 mA
Tariff Code 8537101190

Installation Guidelines

  • Ensure the SLC 500 rack power is disconnected before installing or removing the 1746-OG16 module.
  • Align the module carefully with the chassis guide rails and push firmly to ensure proper seating in the backplane connector.
  • Tighten the top and bottom retaining screws to secure the module and ensure a solid electrical ground connection to the chassis.
  • Use shielded cabling where necessary to mitigate electromagnetic interference (EMI) in industrial environments.
  • Verify that the output load does not exceed the specified 24 mA per channel to prevent module damage.

FAQ

Is the 1746-OG16 still in production?

No, the manufacturer officially discontinued this module on December 31, 2014. We provide these units as legacy spare parts to support existing SLC 500 installations.

What is the primary application for a TTL output module?

This module is typically utilized in applications interfacing directly with 5V logic circuitry, such as specialized sensors, microcontrollers, or other TTL-compatible peripheral equipment that requires a sinking output signal.

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