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Testing Twisted Pair Cabling

15

Split Pair

Figure 10 shows a split pair on 3,6 and 4,5. The split pair
flashes to indicate the fault. The cable length is 75.4 m.

In a split pair, continuity from end to end is correct, but is
made with wires from different pairs. Split pairs cause
excessive crosstalk that interferes with network operation.

Note

Cables with untwisted pairs, such as telephone
cords, typically show split pairs due to excessive
crosstalk.

egk10.eps

Figure 10. Split Pair

Split pair

icon

The split

pair flashes

Split pair wiring

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Содержание MicroScanner 2

Страница 1: ...January 2007 Rev 2 8 2016 2007 2015 2016 Fluke Corporation All product names are trademarks of their respective companies MicroScanner2 Cable Verifier TM Users Manual...

Страница 2: ...ion to refund of the purchase price free of charge repair or replacement of a defective product which is returned to a Fluke Networks authorized service center within the warranty period To obtain war...

Страница 3: ...bols 2 Safety Information 3 MicroScanner2 Features 6 Display Features 8 Auto Shutoff 9 Changing the Length Units 9 Using the Wiremap Adapter and Remote ID Locators 10 Testing Twisted Pair Cabling 11 T...

Страница 4: ...o Telephone Networks Wired in Star Topologies 24 Connecting to Telephone Networks Wired in Bus Topologies 26 Testing Coaxial Cabling 28 Coaxial Results 29 Open on Coaxial Cabling 29 Short on Coaxial C...

Страница 5: ...P 38 Maintenance 39 Cleaning 40 Battery Life Status and Replacement 40 Checking the Tester s Version and Serial Number 41 If Something Seems Wrong 41 Options and Accessories 42 Specifications 43 Envir...

Страница 6: ...MicroScanner2 Cable Verifier Users Manual iv Crossed Pairs 47 Short 48 Index 49...

Страница 7: ...in a Confined Area or to an RJ11 Jack 10 5 Connecting to Twisted Pair Network Cabling 11 6 Open on Twisted Pair Cabling 12 7 Short on Twisted Pair Cabling 13 8 Crossed Wires 13 9 Crossed Pairs 14 10 S...

Страница 8: ...ogy 27 18 Connecting to Coaxial Cabling 28 19 Coaxial Results 29 20 Open on Coaxial Cabling 29 21 Short on Coaxial Cabling 30 22 Unknown Termination on Coaxial Cabling 30 23 PoE Display 31 24 IntelliT...

Страница 9: ...ports on twisted pair cabling and reports the port speed Detects PoE Power over Ethernet and telephone voltages on twisted pair cabling IntelliTone function works with an optional Fluke Networks Inte...

Страница 10: ...er and in this manual Table 1 Symbols Warning or Caution risk of damage or destruction to equipment or software See explanations in the manual On the tester s display this symbol indicates a cable fau...

Страница 11: ...e interfaces may damage the tester and create a potential shock hazard The tester shows a warning symbol and the 40 year Environment Friendly Use Period EFUP under China Regulation Administrative Meas...

Страница 12: ...sable the Product if it is damaged Do not use the Product if it operates incorrectly Batteries contain hazardous chemicals that can cause burns or explode If exposure to chemicals occurs clean with wa...

Страница 13: ...uct with covers removed or the case open Hazardous voltage exposure is possible Remove the input signals before you clean the Product Have an approved technician repair the Product Do not put metal ob...

Страница 14: ...MicroScanner2 Cable Verifier Users Manual 6 MicroScanner2 Features egk01 eps Figure 2 MicroScanner2 Features...

Страница 15: ...ect meters or feet as the length unit Activates a demonstration mode where the tester shows examples of test result screens Note Auto shutoff is disabled in demonstration mode Displays the version and...

Страница 16: ...ay with feet meters indicator Test activity indicator which is animated when a test is running IntelliTone appears when the toner is in IntelliTone mode See pages 32 and 36 Indicates a short on the ca...

Страница 17: ...voltage on the cable SPLIT appears when the fault is a split pair See page 15 Auto Shutoff The tester turns off after 10 minutes if no keys are pressed and nothing changes at the tester s connectors...

Страница 18: ...re is open Without termination the tester shows both wires as open Using multiple remote ID locators helps you identify connections at patch panels The tester shows the number of the locator connected...

Страница 19: ...r ID locator to the cabling as shown in Figures 5 through 17 The test runs continuously until you change modes or turn the tester off Notes You can measure length without connecting a far end adapter...

Страница 20: ...locator is not connected both wires are shown as open The warning icon does not appear if both wires in a pair are open because open pairs are normal for some cabling applications The three segments s...

Страница 21: ...a short the far end adapter and the mapping of the unshorted wires are not shown ekg06 eps Figure 7 Short on Twisted Pair Cabling Crossed Wires Figure 8 shows that wires 3 and 4 are crossed The the p...

Страница 22: ...Pairs Figure 9 shows that pairs 1 2 and 3 6 are crossed The pin numbers flash to indicate the fault This crossed pair is likely caused by mixing 568A and 568B cabling Detection of crossed pairs requir...

Страница 23: ...lit pair continuity from end to end is correct but is made with wires from different pairs Split pairs cause excessive crosstalk that interferes with network operation Note Cables with untwisted pairs...

Страница 24: ...feres with length measurements Warning The tester is not intended to be connected to active telephone inputs systems or equipment including ISDN devices Prolonged exposure to the voltages applied by t...

Страница 25: ...first bridge tap detected is reported The distance to a bridge tap is approximate because multiple reflections from the bridge tap interfere with length measurements Note Bridge taps more than 328 ft...

Страница 26: ...econd The example shows 1000 megabits per second If the port supports multiple speeds the number cycles through the speeds Cable length Dashes are shown if the tester cannot measure the length This ca...

Страница 27: ...Testing Twisted Pair Cabling 19 egk13 eps Figure 13 Ethernet Port Detected A B C C A Active Ethernet port Inactive Ethernet port...

Страница 28: ...ou are viewing Figure 14 shows examples of these screens Short on pair 1 2 at 29 8 m Notes On the individual results screens shorts are shown only when they are between wires in a pair When there is a...

Страница 29: ...Testing Twisted Pair Cabling 21 egk14 eps Figure 14 Results Screens for Individual Wire Pairs...

Страница 30: ...elps you identify multiple network connections at a patch panel as shown in Figure 15 The display in Figure 15 shows that the tester is connected to the cable terminated with remote ID locator number...

Страница 31: ...Testing Twisted Pair Cabling 23 egk04 eps Figure 15 Using Multiple Remote ID Locators Patch panel Locator 2 Locator 3 Locator 4 Locator 5 Remote ID locators connected to wall outlets...

Страница 32: ...bridge tap To measure the length of each cable connected to the bridge tap connect the wiremap adapter or remote ID locator to the bridge tap and the tester to the wall outlet The tester cannot measu...

Страница 33: ...e Network Wired in a Star Topology Distribution center Common connection to bridge tap Wiremap adapter RJ11 patch cord Wall outlets Note For a correct length reading connect the tester and wiremap ada...

Страница 34: ...th The tester cannot measure length past the outlet because reflections from the cables on either side interfere with measurements If you are unsure which outlet is the last in the bus do the followin...

Страница 35: ...7 eps Figure 17 Connecting to a Telephone Network Wired in a Bus Topology Distribution center Connection to bus Wiremap adapter RJ11 patch cord Wall outlets Note Locations of the tester and wiremap ad...

Страница 36: ...p adapter or ID locator to the cabling as shown in Figure 18 For cabling not terminated with an F connector use an adapter or hybrid patch cord to connect to the cabling The test runs continuously unt...

Страница 37: ...s Figure 19 shows a good coaxial cable 38 4 m long and terminated with remote ID number 3 egk20 eps Figure 19 Coaxial Results Open on Coaxial Cabling Figure 20 shows an open 12 1 m from the tester egk...

Страница 38: ...ling Unknown Termination on Coaxial Cabling Figure 22 shows a cable connected to a device at the far end such as a television CATV service VCR DVD player satellite dish splitter or antenna Dashes show...

Страница 39: ...ate a PoE source and will not be damaged by PoE power If PoE power is detected appears above the powered pairs The may blink as the PoE source turns the power on and off In twisted pair test mode a fl...

Страница 40: ...ndles Toning in IntelliTone Mode optional IntelliTone probe required Refer to Figures 24 and 25 1 Connect the tester to the cable 2 Press to select twisted pair or coaxial cable 3 Press until IntelliT...

Страница 41: ...urn the probe s rotary switch to isolate 8 Use the probe to isolate the tone source in the cable bundle or at the patch panel The SYNC LED lights up green when the probe is receiving the IntelliTone s...

Страница 42: ...MicroScanner2 Cable Verifier Users Manual 34 egk24 eps Figure 25 Using the Toner in IntelliTone Mode Locating Cables Volume control Wall outlet Isolating Cables...

Страница 43: ...ars on the display then press to enter analog toner mode The display shows a scrolling sinewave in analog toner mode 4 To change songs press The display shows the song number The analog toner has four...

Страница 44: ...in a cable twisted pair or short the conductor and shield in a cable coaxial If the song changes when you release the short you have found the cable connected to the tester Using the IntelliTone Cabl...

Страница 45: ...ED lights to indicate reception of the IntelliTone signal You may change the LED s function to indicate shield continuity See the probe s documentation for details egk26 eps Figure 27 Using the Toner...

Страница 46: ...urers In most cases these differences are minor and may be disregarded Setting the NVP to a Specified Value To enter the NVP value specified by the manufacturer 1 Turn on the tester while holding down...

Страница 47: ...measured length matches the actual length of the cable 6 To save the setting and exit NVP mode turn the tester off then on again Maintenance Warning To avoid possible fire electric shock personal inj...

Страница 48: ...ic shock or personal injury Turn off the tester and disconnect all test leads before replacing the battery Use only the correct type of batteries properly installed in the case to power the tester The...

Страница 49: ...uke Networks for additional help If possible have the tester s version and serial number For warranty information refer to the warranty at the beginning of this manual If the warranty has lapsed conta...

Страница 50: ...orks Model Number Remote ID Locator Kit numbers 2 7 MS2 IDK27 Wiremap adapter MS2 WM Test lead 8 pin modular plug RJ45 to 8 alligator clips CLIP SET Coaxial Adapter Kit F connector barrel adapter fema...

Страница 51: ...o 45 o C Storage temperature 4 F to 140 F 20 o C to 60 o C Operating relative humidity RH without condensation 90 50 F to 95 F 10 o C to 35 o C 75 95 F to 113 F 35 o C to 45 o C Shock and Vibration Ra...

Страница 52: ...ompatible battery types 2 AA photo lithium NIMH NICAD Dimensions and weight with batteries installed and wiremap adapter attached 3 in x 6 4 x 1 4 in 7 6 cm x 16 3 cm x 3 6 cm 0 8 lb 0 36 kg Display M...

Страница 53: ...of cable Wiremap test Detects single wire faults shorts miswires split pairs and up to seven far end adapter IDs The wiremap is drawn with proportional length to visually indicate the approximate loca...

Страница 54: ...een tested and found to comply with the limits for a Class A digital device pursuant to Part 15 Subpart J of the FCC rules which are designed to provide reasonable protection against such interference...

Страница 55: ...ed cable Wrong pairs selected in setup Wrong application for cable Split Pair Wires connected to wrong pins at connector or punchdown block Reversed Pairs Wires connected to wrong pins at connector or...

Страница 56: ...MicroScanner2 Cable Verifier Users Manual 48 Short Damaged connector Damaged cable Conductive material stuck between pins at connector Improper connector termination Wrong application for cable...

Страница 57: ...9 B batteries 40 bridge tap 17 bus topology 26 C cable map function 36 cable tests coaxial cabling 28 twisted pair 11 cleaning 40 coaxial connections 28 open 29 30 short 30 unknown termination 30 con...

Страница 58: ...etected 18 F Fluke Networks 2 H help contacting Fluke Networks 2 problem with the tester 41 high voltage 5 16 I IntelliTone mode cable map function 36 toner 32 ISDN 5 16 K keys 7 L length calibration...

Страница 59: ...topology 24 27 symbols 2 T telephone cord split pair 15 telephone voltages 5 16 testing coaxial cabling 28 twisted pair cabling 11 toner 32 analog mode 35 IntelliTone mode 32 SmartTone function 35 36...

Страница 60: ...MicroScanner2 Cable Verifier Users Manual 52 split pair 15 telephone voltages 16 U universal adapter 10 V version information 41 voltage detection 5 16 W wiremap adapter 10...

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