Lab 4.2.9a Fluke 620 Cable Tester Wire Map Instructor Version

Objective

Learn the wire mapping features of the Fluke 620 LAN CableMeter or its equivalent. Learn how to use a cable tester to check for the proper installation of unshielded twisted- pair (UTP) Category 5 according to TIA/EIA-568 cabling standards in an Ethernet network.

Background / Preparation

Wire maps can be very helpful in troubleshooting cabling problems with UTP cable. A wire map allows the network technician to verify which pins on one end of the cable are connected to which pins on the other end. Prior to starting the lab, the teacher or lab assistant should have several correctly wired Category 5 cables to test. The cables should be both straight-through and crossover. There should also be several Category 5 cables created with problems such as poor connections and split pairs to test. Cables should be numbered to simplify the testing process and to maintain consistency. A cable
1-1 CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a Instructor Version Copyright 2003, Cisco Systems, Inc.
tester should be available that can test at least continuity, cable length, and wire map. Work individually or in teams. The following resources will be required: Category 5 straight-wired cables of different colors Category 5 crossover-wired cable, which isT568A on one end and T568B on the other Category 5 straight-wired cables with open wire connections in the middle or one or more conductors shorted at one end of different colors and different lengths Category 5 straight-wired cable with a split pair mis-wire Fluke 620 LAN CableMeter or similar to test cable length, continuity, and wire map

Step 1

Turn the rotary switch selector on the tester to the WIRE MAP position. Press the SETUP button to enter the setup mode and observe the LCD screen on the tester. The first option should be CABLE. Press the UP or DOWN arrow buttons until the desired cable type of UTP is selected. Press ENTER to accept that setting and go to the next one. Continue pressing the UP/DOWN arrows and pressing ENTER until the tester is set to the following cabling characteristics: Tester Option CABLE: WIRING: CATEGORY: WIRE SIZE CAL to CABLE? BEEPING: LCD CONTRAST Desired Setting UTP UTP 10BASE-T or EIA/TIA 4PR CATEGORY 5 AWG 24 NO ON or OFF From 1 through 10 (brightest)

Step 2

Once the student has completed setting up the meter, press the "SETUP" button to exit setup mode. For each cable to be tested use the following procedure. Place the near end of the cable into the RJ45 jack labeled UTP/FTP on the tester. Place the RJ-45-RJ-45 female coupler on the far end of the cable, and then insert the cable Identifier into the other side of the coupler. The coupler and the cable identifier are accessories that come with the Fluke 620 LAN CableMeter.

Step 3

Using the tester Wire Map function and a Cable ID Unit, the wiring of both the near and far end of the cable can be determined. The top set of numbers displayed on the LCD screen is the near end, and
2-2 CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a Instructor Version Copyright 2003, Cisco Systems, Inc.

the bottom set is the far end. Perform a Wire Map test on each of the cables provided. Then fill in the following table based on the result for each Category 5 cable tested. For each cable, write down the number and color, whether the cable is straight-through or crossover, the tester screen test results, and what the problem is.

Cable No.

Cable Color
How cable is wired (straight-through or crossover)
Test Displayed Test Results (Note: Refer to the Fluke manual for detailed description of test results for wire map.) Top: 12364578 Bot: 12364578 Top: 12364578 Bot: 36124578 Top: 12oo4578 Bot: 36124578 Top: 12364578 Bot: 12364s78 Top: 12365478 Bot: 12364578

Problem Description

Answers will vary. Answers will vary. Answers will vary. Answers will vary. Answers will vary.

patch cross over

cross over
Pins 3 and 6 are open somewhere in the first half of the cable Pin 5 is shorted in the last half of the cable Miswire

patch patch

Answers for rows 3, 4, and 5 will vary depending on the types of problems the cables have, but they could be as shown.
CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a Instructor Version
Copyright 2003, Cisco Systems, Inc.
CCNA 1: Networking Basics v 3.1 - Lab11.2.4

Lab 4.2.9a Fluke 620 Cable Tester Wire Map

Objective

Learn the wire mapping features of the Fluke 620 LAN CableMeter or its equivalent. Learn how to use a cable tester to check for the proper installation of unshielded twisted- pair (UTP) Category 5 according to TIA/EIA-568 cabling standards in an Ethernet network.

Background / Preparation

Wire maps can be very helpful in troubleshooting cabling problems with UTP cable. A wire map allows the network technician to verify which pins on one end of the cable are connected to which pins on the other end. Prior to starting the lab, the teacher or lab assistant should have several correctly wired Category 5 cables to test. The cables should be both straight-through and crossover. There should also be several Category 5 cables created with problems such as poor connections and split pairs to test. Cables should be numbered to simplify the testing process and to maintain consistency. A cable
1-3 CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a Copyright 2003, Cisco Systems, Inc.
tester should be available that can test at least continuity, cable length, and wire map. Work individually or in teams. The following resources will be required: Category 5 straight-wired cables of different colors Category 5 crossover-wired cable, which isT568A on one end and T568B on the other Category 5 straight-wired cables with open wire connections in the middle or one or more conductors shorted at one end of different colors and different lengths Category 5 straight-wired cable with a split pair mis-wire Fluke 620 LAN CableMeter or similar to test cable length, continuity, and wire map

Step 1

Turn the rotary switch selector on the tester to the WIRE MAP position. Press the SETUP button to enter the setup mode and observe the LCD screen on the tester. The first option should be CABLE. Press the UP or DOWN arrow buttons until the desired cable type of UTP is selected. Press ENTER to accept that setting and go to the next one. Continue pressing the UP/DOWN arrows and pressing ENTER until the tester is set to the following cabling characteristics: Tester Option CABLE: WIRING: CATEGORY: WIRE SIZE CAL to CABLE? BEEPING: LCD CONTRAST Desired Setting UTP UTP 10BASE-T or EIA/TIA 4PR CATEGORY 5 AWG 24 NO ON or OFF From 1 through 10 (brightest)

Step 2

Once the student has completed setting up the meter, press the "SETUP" button to exit setup mode. For each cable to be tested use the following procedure. Place the near end of the cable into the RJ45 jack labeled UTP/FTP on the tester. Place the RJ-45-RJ-45 female coupler on the far end of the cable, and then insert the cable Identifier into the other side of the coupler. The coupler and the cable identifier are accessories that come with the Fluke 620 LAN CableMeter.

Step 3

Using the tester Wire Map function and a Cable ID Unit, the wiring of both the near and far end of the cable can be determined. The top set of numbers displayed on the LCD screen is the near end, and
2-3 CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a Copyright 2003, Cisco Systems, Inc.

the bottom set is the far end. Perform a Wire Map test on each of the cables provided. Then fill in the following table based on the result for each Category 5 cable tested. For each cable, write down the number and color, whether the cable is straight-through or crossover, the tester screen test results, and what the problem is.

Cable No.

Cable Color
How cable is wired (straight-through or crossover)
Test Displayed Test Results (Note: Refer to the Fluke manual for detailed description of test results for wire map.) Top: Bot: Top: Bot: Top: Bot: Top: Bot: Top: Bot:

Problem Description

CCNA 1: Networking Basics v 3.1 - Lab 4.2.9a
Copyright 2003, Cisco Systems, Inc.