TDR Cable Tester User Manual

Introduction

This manual provides detailed instructions for the operation, maintenance, and troubleshooting of the multicomp PRO MP780994 TDR Cable Tester. This handheld device is designed for detecting and diagnosing wiring conditions of twisted pair and coaxial cables, identifying network service issues, and verifying Power over Ethernet (PoE) standards.

The MP780994 is an essential tool for network communication maintenance, engineering, and wiring projects, offering accurate measurements and clear display of wiremap, cable length, and open-circuit locations.

Product Overview

Figure 1: The multicomp PRO MP780994 TDR Cable Tester (left) and its accompanying Wire Tracker Receiver (right). The main unit features an LCD display for readings, control buttons for navigation and testing, and a rotary dial. The receiver unit has an NCV sensor, volume control, and LED indicators for wire tracking.

The MP780994 kit includes the main TDR Cable Tester unit and a Wire Tracker Receiver. Key features include:

• TDR supported (no blind area)
• High resolution (about 0.3m)
• Compatibility with various types of cables (CAT 5E, CAT 6, CAT 6A, CAT 8, coaxial)
• Wide measurement range
• Input protection
• Auto power OFF function

Package Contents

Verify that all items are present in the package:

• 1 x TDR Cable Tester (Main Unit)
• 1 x Wire Tracker Receiver
• Batteries (pre-installed or included separately)
• User Manual (this document)

Safety Information

Always observe the following safety precautions to prevent injury or damage to the device:

• Do not attempt to open or modify the device.
• Do not expose the device to moisture or extreme temperatures.
• Ensure proper battery installation and disposal.
• Avoid testing live circuits unless specifically designed for such purpose and appropriate safety measures are in place. This device is primarily for unpowered cable testing.

Setup

Battery Installation

The MP780994 TDR Cable Tester and Wire Tracker Receiver require batteries for operation. Refer to the battery compartment on the back of each unit for correct polarity. Use only the specified battery type.

Initial Power On

Press and hold the power button (usually marked with a power symbol) on both the main unit and the receiver to turn them on. The main unit's LCD screen should illuminate.

Operating Instructions

Basic Cable Testing (Wiremap)

1. Connect one end of the cable to be tested to the "PORT" input on the main TDR unit.
2. Connect the other end of the cable to the corresponding port on the Wire Tracker Receiver.
3. Select the "TEST" mode on the main unit.
4. The display will show the wiremap, indicating continuity, open circuits, short circuits, split pairs, or miswires.

Cable Length Measurement (TDR)

1. Ensure the cable is disconnected from any network devices.
2. Connect one end of the cable to the "PORT" input on the main TDR unit. Leave the other end open.
3. Select the "SCAN" mode or TDR function.
4. The display will show the cable length in feet or meters. Use the "ft/m" button to toggle units.
5. The TDR function can also locate the distance to faults like open or short circuits.

PoE Detection

1. Connect the cable from the PoE source to the "POE" input on the main TDR unit.
2. Select the "POE" mode.
3. The display will indicate if PoE is present and identify the PoE standard (802.3AF, 802.3AT, 802.3BT).

Wire Tracking (with Receiver)

1. Connect the cable to be traced to the main TDR unit.
2. Activate the "SCAN" or tone generation function on the main unit.
3. Use the Wire Tracker Receiver to follow the cable path. The receiver will emit an audible tone and/or illuminate LEDs when near the cable carrying the signal.
4. Adjust the sensitivity on the receiver using the rotary dial for optimal tracing.

Maintenance

Cleaning

Wipe the device with a soft, dry cloth. Do not use abrasive cleaners or solvents.

Storage

Store the device in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove the batteries to prevent leakage.

Battery Replacement

Replace batteries when the low battery indicator appears on the display. Dispose of old batteries according to local regulations.

Troubleshooting

Specifications

Warranty Information

For warranty details and terms, please refer to the official multicomp PRO website or contact their customer support. Keep your purchase receipt as proof of purchase.

Support

If you encounter any issues or have questions not covered in this manual, please contact multicomp PRO customer support:

• Website: Visit the multicomp PRO Store on Amazon (for general product information and contact options)
• Email: Refer to the product packaging or official website for direct email support.
• Phone: Refer to the product packaging or official website for phone support.