Allen-Bradley 1756-N2XT ControlLogix Slot Filler Module

Product Overview

The Allen-Bradley 1756-N2XT is a slot filler module. It belongs to the ControlLogix series. This module offers RS-232, RS-422, and RS-485 communication. It draws 800 milliamps from the 5-volt backplane. The 24-volt backplane current is only 3 milliamps. This unit dissipates 6.2 Watts of power. It supports SERCOS data rates of 4 or 8 Megabits per second. The module fits into a ControlLogix chassis.

Application Scenarios

Use this module in industrial automation systems. It works well in discrete manufacturing. It also fits process control environments. The 1756-N2XT handles communication tasks. It connects to various field devices. Use it with RS-232, RS-422, or RS-485 networks. The module supports on, off, and fault states per point. It holds the last state in program mode. This makes it ideal for critical control applications.

Technical Specifications

The 1756-N2XT has a temperature rating of -25 to 70 degrees Celsius. It provides isolation voltage of 50 Volts continuous. The thermal dissipation is 21.2 BTU per hour. The module draws 1.2 amps at 5.1 Volts. It has a maximum current of 0.5A per point at 60 degrees Celsius. The maximum current per module is 4A at 60 degrees Celsius. It uses a slow blow fuse rated at 3.15A at 250V AC. The field-side wiring uses RTB 1756-TBNH, 1756-TBSH, or an Interface Module (IFM).

Installation & Maintenance Guide

Mount the 1756-N2XT in a ControlLogix chassis. Ensure the backplane is powered off. Insert the module into an empty slot. Secure it with the locking mechanism. Connect field wiring to the terminal base. Use the correct RTB or IFM for connections. Test all communication lines before startup. Check the fuse periodically for integrity. Replace the fuse if it blows. Always follow safety guidelines for electrical work.

Packing List

One Allen-Bradley 1756-N2XT slot filler module. One installation guide. No additional accessories are included. Shipping is via Fedex, UPS, or DHL. Contact us for bulk orders.