Ethernet DH+ RIO Media Checker | 1788-MCHKR Allen-Bradley

Allen-Bradley 1788-MCHKR Industrial Network MediaChecker Diagnostic Tool

Product Overview

The 1788-MCHKR, commonly known as the MediaChecker, is a versatile, handheld diagnostic instrument engineered by Rockwell Automation for the comprehensive testing of industrial communication media. This essential field tool is designed to verify the physical layer integrity of multiple network types, including EtherNet/IP, ControlNet, DeviceNet, Data Highway Plus (DH+), and Remote I/O (RIO). By integrating Time Domain Reflectometry (TDR) technology, the 1788-MCHKR allows technicians to not only identify wiring faults such as shorts, opens, and split pairs but also to measure the exact length of cable runs and locate the distance to a specific failure point.

Technical Specifications

The 1788-MCHKR is built to withstand field conditions while providing laboratory-grade measurement accuracy for industrial cabling.

• Manufacturer: Rockwell Automation / Allen-Bradley

• Model Number: 1788-MCHKR

• Device Category: Portable Network Media Diagnostic Tool

• Output Interface: 2-Line, 16-Character LCD with backlight

• Input Interface: Tactile keypad (Enter, Up, Down, Setup)

• Supported Protocols & Cables:

• Ethernet: UTP, FTP (Cat5, Cat5e, Cat6)

• ControlNet: Coaxial RG6, RG6F, DS3/4

• DeviceNet: Thick, Thin, and KwikLink

• DH+ / Remote I/O: 1770-CD (Blue Hose), 9022, 9463

• Measurement Capabilities:

• Ethernet Range: 1 to 350 meters (Resolution: 0.5m)

• ControlNet Range: 1 to 650 meters

• Diagnostic Modes: Test (Wire Map), Length (TDR), Wire Map (Detailed Pinout), and Setup

• Input Connectors: RJ45, DB-9 (RS-232), and BNC

• Power Requirements: Two (2) AA 1.5V alkaline batteries

• Battery Life: 50 hours of typical operation

• Operating Temperature: 0°C to +45°C (32°F to 113°F)

• Storage Temperature: -20°C to +60°C (-4°F to 140°F)

• Weight: 5.25 lbs (2.38 kg) including rugged carrying case and adapters