Reverse engineering the Fluke WireView identifiers - Page 1
Forum section: electronics / projects

author: andtfoot
author_rank: Unknown
timestamp: December 29, 2013, 11:36:58 am
content: After recently purchasing the Fluke LinkRunner AT 2000 (thanks to TopLoser), I looked at getting more of the cable identifiers. After seeing the price (>$400).... bugger that.I thought I'd see if I could make my own.I was fully expecting some termination resistors, and maybe an EEPROM with the identifier number stored.Instead I got this (please excuse blurry phone pics; my camera is at work):I scanned the circuit board and whipped up a quick overlay:I'll be figuring out the circuit shortly.In the meantime, has anyone got any ideas on how the Identifier number might be set on this? There are 1 to 6 available, and this is #1.

author: amyk
author_rank: Super Contributor
timestamp: December 29, 2013, 11:53:18 am
content: The value of the resistors, almost certainly.

author: dfmischler
author_rank: Frequent Contributor
timestamp: December 29, 2013, 11:58:11 am
content: If it isn't the resistors then the units could be wired differently to the connector (i.e. three diodes could provide a three bit binary code quite easily).

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: December 29, 2013, 12:40:05 pm
content: Once you have a schematic I suspect it will be fairly obvious which parts will be used to distinguish units - almost certainly either a resistor value or a ratio of 2 resistor values,

author: mcinque
author_rank: Unknown
timestamp: December 29, 2013, 02:53:47 pm
content: >400$?This is the evidence that some manufacturers tend to easily overprice their accessories not for their quality but only because their brands are well known.

author: andtfoot
author_rank: Unknown
timestamp: December 29, 2013, 04:19:41 pm
content: Quote from: mcinque on December 29, 2013, 02:53:47 pmI should clarify, the $410 is for a set of 5 (#2 to #6), but that still means $82 each...I tend to agree with the suggestions of the resistors being used to set the number. I've thrown together a schematic, but with no values yet. For some reason what measure doesn't seem to match the markings. e.g:R1 (the one on the far right of the top picture) measures 25.07k, but marked 390 (39R) or 39C(?) maybeR6 and R9 measure 10.6k, but are marked 1432 (14.3k)R12 measure 3.836k, but is marked 57B (?)I might pull a couple out of circuit to double check, but I wouldn't have thought these would be affected.

author: mikeselectricstuff
author_rank: Super Contributor
timestamp: December 29, 2013, 05:00:22 pm
content: Letters are equivalent to digits : 57B = 572 = 5K7Low readings will be due to the parallel combinationsA bit puzzled about the large R's, unless it's a test load for 48V PoE

author: mcinque
author_rank: Unknown
timestamp: December 29, 2013, 05:04:46 pm
content: Quote from: andtfoot on December 29, 2013, 04:19:41 pmMuch betterBut still overpriced!

author: andtfoot
author_rank: Unknown
timestamp: December 29, 2013, 06:17:12 pm
content: Quote from: mikeselectricstuff on December 29, 2013, 05:00:22 pmRightio, thanks.I wouldn't have thought a resistor such as R1 would be affected by any parallel combinations. I'll have to double check after I've had a nap...The Linkrunner measures PoE, but I don't think it spits out any. That said, these identifiers appear to be used across a few products so maybe something else does.If I were to have a hunch based on an uneducated guessI'd say that the Schottky diodes are being used as comparators of sorts; the voltage dividers made by the resistors are used to set which diodes are forward biased.Another possible theory is that the large resistors are being used as a precision reference (why else would you have series-parallel like that of the same value, apart from increasing power capacity). Maybe the comparison between this and the other resistors is done at the LinkRunner end.First thing I'll probably do after figuring out values is breadboard it and see if I can get a copy working. Then I can tinker......

author: tinhead
author_rank: Super Contributor
timestamp: December 29, 2013, 06:22:08 pm
content: Quote from: mikeselectricstuff on December 29, 2013, 05:00:22 pmwrong, 57B ist not 5k7 but 3k83http://www.talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-Markings.html

author: andtfoot
author_rank: Unknown
timestamp: December 29, 2013, 06:23:40 pm
content: Quote from: tinhead on December 29, 2013, 06:22:08 pmCould you please explain how you got that so I can see if it matches with the rest?Edit: Hmm, found something that explains it a bit:www.marsport.org.uk/smd/res.htm

author: TopLoser
author_rank: Unknown
timestamp: December 29, 2013, 06:26:45 pm
content: Quote from: andtfoot on December 29, 2013, 06:23:40 pmhttp://www.hobby-hour.com/electronics/eia96-smd-resistors.phpGlad you like your new LinkRunner!

author: andtfoot
author_rank: Unknown
timestamp: December 30, 2013, 02:27:06 am
content: Ok, here is the latest with the values read off the components. I've also rearranged it a bit to try and find patterns in how the components are connected.

author: andtfoot
author_rank: Unknown
timestamp: January 08, 2014, 06:42:10 am
content: I finally found some schottky diodes and sat down with the breadboard.I don't have the correct value resistors, so I tried the closest values I could:Not close enough apparently...I'll get a bunch of the correct resistors and try again (and double check my breadboard mess).I couldn't measure the capacitors (value too small for my DMM), so I took a punt with 22pF ceramics. Maybe this is a good excuse to pick up an LCR meter, not that the value should be important.

author: amyk
author_rank: Super Contributor
timestamp: January 08, 2014, 07:48:08 am
content: Could all the stray capacitance/inductance of a breadboard be enough to upset it?

author: andtfoot
author_rank: Unknown
timestamp: January 08, 2014, 07:53:02 am
content: Quote from: amyk on January 08, 2014, 07:48:08 amIt's possible. I did connect the original module through the breadboard and it worked fine there, but it's obviously a lot neater.I was hoping whatever signals it uses would be quite robust, given it may have to go ~100m of cable in normal usage. Some of the resistors are a fair bit out, so it can't hurt to try that first.

author: Rerouter
author_rank: Super Contributor
timestamp: January 08, 2014, 09:06:48 am
content: Just to pretty it up if you get anywhere with it, heres my take on the circuit,

author: andtfoot
author_rank: Unknown
timestamp: January 09, 2014, 03:23:39 am
content: Quote from: Rerouter on January 08, 2014, 09:06:48 amThanks. The general layout looks like it will be easier to find patterns with.It looks like I'll probably concentrate on the 4 right-hand resistors (R4, R11, R12, R15) to start with.One small error though, is the missing RJ-45 shield and how the last diode connects to it.On other news....Like a bought one!I started by compacting it all and shortening the wires; no good. Then swapped the resistors out for combinations that got me within 100R or so.It means I can churn out a bunch of #1 units if I feel like.Next step will be grab some scope shots, and start swapping values. I might also disconnect a few diodes one at a time to see if them conducting or not is determining the ID.

author: andtfoot
author_rank: Unknown
timestamp: January 09, 2014, 03:32:15 am
content: First bit of random discovery:I can get the ID to change from #1 to #5 if I disconnect this wire going to pin 3 of D2.

author: andtfoot
author_rank: Unknown
timestamp: January 09, 2014, 06:37:34 am
content: First scope shots, with ground on pin 8, and probe on pin 1.Idle, there seem to be random pulses (which aren't there when the tester is turned off). Could be something to do with the network testing side of things.This is when doing a test:

author: Rerouter
author_rank: Super Contributor
timestamp: January 09, 2014, 06:50:37 am
content: based on the arrangement, try measuring across 4 and 5, i would imagine that should just be a fixed voltage,(also i mistook that 9 to be 8, so the diode that curls around the right on my diagram is the diode to case)

author: andtfoot
author_rank: Unknown
timestamp: January 09, 2014, 08:12:25 am
content: Quote from: Rerouter on January 09, 2014, 06:50:37 amMeasuring with probe on 4, ground on 5.No random pulses (which makes sense if it is a network testing signal).

author: andtfoot
author_rank: Unknown
timestamp: January 14, 2014, 09:18:09 am
content: I've had a fiddle around, swapping the 4 resistors going to the diodes, reversing the diodes, changing value of that series/parallel resistor set, etc.No luck apart from that #1 -> #5 when disconnecting a wire thing (probably just coincidental) I posted earlier.To be honest, I'm pretty lost where to start looking or what to try. Has anyone got any ideas they could throw at me please?I've also ordered a batch of circuit boards from ITead matching the existing one. First time I have done that, so at least it's still a good learning experience.

author: Rerouter
author_rank: Super Contributor
timestamp: January 14, 2014, 09:23:02 am
content: try moving the diodes connection from 6 to 7and / or R4's connection to pin 6,my head is screaming at me about the non symmetry in the diodes center connection

author: tonyv
author_rank: Newbie
timestamp: March 25, 2014, 10:36:33 pm
content: Hi AndtFoot !I'm also an owner of a LRAT2000, it is an outstanding piece of equipment. I also share your thoughts about that those little WireView adapters are very expensive, and actually overpriced.I also own a Microscanner2. Its included cap/lid is also the receiver, if used with the LRAT2000 it is detected a WireView1, i will extract it and photograph it for you so you can compare.But i discovered something, the integrated reception port of the LRAT2000 (the lateral RJ45 port) is detected as Wireview 7 with the Microscanner2 !!!I think that you should open your unit and verify that portion of the circuit, i think that you may find a clue there.Hope that this project is still alive !

author: andtfoot
author_rank: Unknown
timestamp: April 20, 2014, 01:50:39 pm
content: Well... after a loooong time, I've finally got around to looking at this again. Thanks for the suggestions in the meantime.I ended pulling apart the main unit (goodbye warranty) to look at its loopback circuit.It appears to be identical with the exception of R12, R11, R4 and R15 below (unit #1). They are double the value in the loopback.This triggered a memory of a pattern I'd noticed earlier in unit #1:The ratio of the the resistor leading to the diodes to the other resistor(s) that the diode is across is 1:5e.g. R12 * 5 = R2,R4 * 5 = (R3 + R8 + R5),etc.The ratio of the loopback unit is then obviously 1:10.So I've ordered a bunch of resistors to suit ratios 1 through to 10; more experimentation to follow once these are received.In the meantime, production of identifiers using parts I already have has begun......

author: menkelis
author_rank: Contributor
timestamp: April 26, 2014, 03:18:24 pm
content: Just passing on some information, might be useful. I have a Fluke Lanmeter 683 and asked user Khashoggiwho also has/had a 683 a question on ID plugs (search for 'Lanmeter 630' in Test Equipment).Quote

author: menkelis
author_rank: Contributor
timestamp: April 28, 2014, 03:17:27 pm
content: WireView Wiremapper Use and Interoperability - EtherScopeEtherScope ships with a far end adapter 1 labeled WireView.The WireView far end adapter is used on installed cable links to obtain wiremap results.EtherScope reads the adapter ID and reports the value on the Cable Verification screen.Shown below are the wiremap adapters supplied with products:•OneTouch•OptiView Integrated Network Analyzer (Series I and Series II only)•EtherScope•LANMeterCable identifiers shown are all interoperable.

author: andtfoot
author_rank: Unknown
timestamp: May 01, 2014, 12:13:25 pm
content: Some success!Tried a ratio of 6 first up (first number I pulled out of the bag of resistors).No good.Tried a ratio of 3, which led to...ID of 2 found!Further testing of other ratios to follow........

author: andtfoot
author_rank: Unknown
timestamp: May 01, 2014, 02:04:37 pm
content: Quote from: andtfoot on May 01, 2014, 12:13:25 pmResults of the rest of the ratios I bought resistors for are in:IDRatio15 (measured and based on original)2332Loop9Loop10 (measured and based on original)When I get some time again I'll try some ratios between the whole numbers (e.g. 1.5).

author: menkelis
author_rank: Contributor
timestamp: April 17, 2015, 06:47:49 pm
content: Well it's bee a while, and I just acquired a Fluke 620 LAN Cable Meter with the optional eightcable-id plugs.They look exactly like the cable-id plug that came with my Fluke Lanmeter 683, but unfortunatelythey are not the same beast.The Lanmeter 683 reports mis-wired ID when trying out the 620 cable-id plugs.Trying the 'cable map' function reports open's and mis-wires on these id plugs.The Fluke 620 reports invalid 'ohms' when trying out the Lameter cable-id plugs in it.Not a 100% lost cause, as I can still use the 620 cable-id plugs as intended with the620 cable meter for ID'ing unknown/unmarked cables.

author: menkelis
author_rank: Contributor
timestamp: July 16, 2015, 03:56:25 am
content: I now have a official set of 0 - 6 "cable identifier" plugs for my 683.I opened up the ID #1 plug to see what it was like inside and have attacheda photo of it.

author: coreyspeed
author_rank: Newbie
timestamp: November 08, 2015, 03:11:23 pm
content: I was wondering if anybody ever got any further on this project, I have just purchased a Fluke linkrunner, and would like the extra remote's, it looks like I can make ID's 1-3 and then try and produce the other values.Also would you be able to provide the values used for ID 2 and 3 for resistors R12,R11,R4,R15. My Maths doesn't appear to be getting anywhere near the values for wireview 1

author: coreyspeed
author_rank: Newbie
timestamp: November 09, 2015, 12:48:13 pm
content: Got hold of the Fluke Microscanner at work today and the WireMap top on the unit comes apart very easily.Measured the capacitors and they read at 22pf.Took some pictures appears to have more components then the listed on this thread.

author: kamcm
author_rank: Regular Contributor
timestamp: November 09, 2015, 07:35:08 pm
content: Coreyspeed, the item you pictured is a main Wiremap adapter instead of a WireView identifiers.http://www.amazon.com/Fluke-Networks-CIQ-WM-Wiremap-Adapter/dp/B00094OWGA======May you please post more clear pictures with it?I want to make one on my own.I recently purchased a Fluke CableIQ tester off eBay, but it didn't come with a Wiremap adapter.Thanks

author: coreyspeed
author_rank: Newbie
timestamp: November 10, 2015, 12:06:54 pm
content: HiYes this is correct, I have a WireView number 1 as well, both are ID's appear as 1 on the units. I believe the extra components maybe for the F-Connector.I am going to create a schematic this weekend to see how they compare to each otherWould be interested to know how the original poster removed the casing from the WireView with out damaging the casing, mine appears to be stuck in their.

author: coreyspeed
author_rank: Newbie
timestamp: November 10, 2015, 05:56:15 pm
content: It appears that the red section in the picture is R1 and R12 this is only connected to the F connector and therefore ID's this as number 1.

author: timofonic
author_rank: Frequent Contributor
timestamp: November 15, 2015, 11:46:56 am
content: I'm really intrigued about this. I didn't know there was so much tools for cablee impedance and such.Could someone provide a layman introduction or URLs about all this? Please, I'm curious...

author: turbotim
author_rank: Newbie
timestamp: August 29, 2017, 05:19:05 pm
content: Hi There,I know its been a long time, but did anyone manage to crack this one?

author: andtfoot
author_rank: Unknown
timestamp: September 01, 2017, 11:41:52 pm
content: Quote from: turbotim on August 29, 2017, 05:19:05 pmIt's on my very long 'rainy day' list, but the 4 IDs I figured out of 7(?) possible is enough for my purposes so it's relatively low priority at the moment.

author: sayit
author_rank: Newbie
timestamp: January 20, 2018, 04:16:39 am
content: CableIQ wiremap testedRK45 8pinattach cable with WM Autotest->Port or cabling short Autotest not availablenot join WM Autotest-> without wire map test OKDIAG—>Continuity test all OKBlinking port light test OKTelco 2pin (4-5)attach cable with WM Autotest-> not find wire map continue no WM-> then yes->cable length okCOAXAUTO TEST MAP ID are “?” other OKteardown main unit without LCD unit and checking use microscopeclean PCB board resolder any parts..same work wiremap unitBut a not changes result.Whats happen? please your help.http://www.chitosecity.com/flukes/CIQ.pdf

author: ben_r_
author_rank: Frequent Contributor
timestamp: January 25, 2018, 04:28:57 pm
content: Has anyone confirmed that this circuit is the same as the Remote IDs Fluke makes for the MicroScanner2?

author: cmu2017
author_rank: Contributor
timestamp: October 27, 2018, 04:44:33 pm
content: Does anyone know how they check if some wires are crossed?

author: jasom
author_rank: Contributor
timestamp: November 10, 2018, 09:43:15 am
content: Hello, have someone photo of Fluke Microscanner2?I have one with damaged one zener diode but I have not information about that model. (VR1 position)

author: cmu2017
author_rank: Contributor
timestamp: November 30, 2018, 09:41:22 am
content: What are the values of the diodes and capacitors on the schematic made by user andtfoot

author: andtfoot
author_rank: Unknown
timestamp: December 15, 2018, 09:26:00 am
content: Quote from: cmu2017 on November 30, 2018, 09:41:22 amFor the diodes I used the Broadcom HDMS-2802-TR1G schottky.https://au.element14.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&langId=43&urlRequestType=Base&partNumber=1056834&storeId=10184I don't how important the actual value/part is, just that it's a schottky.For the capacitor, I think I used a 10nF or 1nF ceramic; I can't check at the moment though to confirm. I don't think I could ever actually measure it from the original.

author: cmu2017
author_rank: Contributor
timestamp: December 16, 2018, 02:45:18 pm
content: Ok, thanks

author: electroboy
author_rank: Newbie
timestamp: January 14, 2019, 02:39:26 pm
content: Fluke Main WiremapHello Andfoot, I have a Fluke Networks Cable IQ qualification tester with this main wiremap, but it has a problem, the tester not recognizes it, when I connect it at far end it appears like nothing connected. The problem comes out because it got connected to a POE Ethernet switch by a partner at work. My question is? Do you have the circuit for this main Wiremap? I also need help with this component, which is marked as WK3 and is SOT-23 package, CG marking code 3 pins SOT-23, I can’t find it and I don’t know if it is a transistor or a diode. Thanks a lot

author: KuchateK
author_rank: Regular Contributor
timestamp: February 16, 2019, 03:35:29 am
content: Quote from: jasom on November 10, 2018, 09:43:15 amJust dropping pic of the VR1 if you still need it. I have same rev on the pcb as you.Quick measurement: 3.3v on the plus side relatively to battery negative terminal. Let me know if you need more measurements.

author: jasom
author_rank: Contributor
timestamp: March 10, 2019, 12:27:12 pm
content: KuchateK: Thanks so much, I have still this problem so now I can try to repair it. I will say if it works or no.

author: jasom
author_rank: Contributor
timestamp: March 23, 2019, 04:42:38 pm
content: Hello, I have a new problem .Can anyone tell me what is circled smd on picture? Sign on it is "5T8 RRN"Thanks

author: kripton2035
author_rank: Super Contributor
timestamp: May 08, 2019, 03:02:07 pm
content: could you please check between the two schematics below.there is a mix between pins 9,8 and 1 the schematics are not the same.I tried both of them and none works for ID#1can someone please confirm which one is the good one ?thanks.

author: kripton2035
author_rank: Super Contributor
timestamp: May 08, 2019, 03:03:42 pm
content: I can get the ID#1 on the fluke nettool 2 display, but it tells me wires 1-2-3-4 are not wired correctly.

author: t523993
author_rank: Newbie
timestamp: September 15, 2019, 06:47:03 pm
content: I look for scheme for wiremap adpater to Fluke Microscanner I. Who have this scheme?

author: hopto
author_rank: Newbie
timestamp: December 11, 2019, 12:56:45 pm
content: Hello. Can you take photos of the microscanner2 and CableIQ printed circuit boards from all sides?

author: martonbaksa
author_rank: Newbie
timestamp: June 20, 2020, 07:46:42 am
content: Hey y'all,You mention these WireView identifiers, are those compatible with the OneTouch Series II. According to the manual the part number for those is: N6600/RA but those don't look the same as yours, but I read on eBay that the newer ones are compatible with most older fluke units. I am not sure if I want to go down the road of making my own off these schematics unsure of if it will work.Thanks,Marton

author: Nifty
author_rank: Contributor
timestamp: May 18, 2021, 08:05:12 pm
content: LinkRunner WIREMAP schematicby Lawrence Billsonupverter.com/design/lawrencebillson/4ae5e357c2db7191/linkrunner-wiremap/

author: ediaz
author_rank: Newbie
timestamp: October 26, 2021, 09:08:00 am
content: Will be great if somebody share the info about this to be able to replicate the process and create new ids..@andtfoot can you share the gerbers and the lasted info? if you can, thanks a lot I will post my summary here :-D

author: ahrenolog
author_rank: Newbie
timestamp: November 13, 2021, 05:58:26 pm
content: Hello colleagues . The following analyzer came in for repair - Fluke Networks NetTool Series 2. There were charging problems. They asked me to make identifiers, I worked in the evenings for a week, that's what happened.https://youtu.be/v9sYhZtopYk

author: jasom
author_rank: Contributor
timestamp: April 30, 2022, 12:08:56 pm
content: Hello, its some time but, if You still can do some measurements on this device. Can You please check what voltage is on U13 on pin 6 (Vin) when You press start button?I have 3.2VThank You very much

author: morphis
author_rank: Newbie
timestamp: May 23, 2023, 09:29:02 am
content: @andtfoot Thank you for your initial work with the schematic.I've been needing to repair my ID3 and ID4 WireView Cable ID units (Broken tabs).So as I had to de-pot them I have some more info, and I've also measured the loopback inside my LinkRunner AT-2000.Resistors R2, R3, R5-10, R13, R14 are the same values for each ID and the internal loopbackThe internal loopback only has a single 14K3 (R4) between pin 4 and 5, Where as the Cable ID units have 4 resistors (R6-9) in the parallel-series arrangement.Its also missing the pin-9 shield test components (R1, D5, C5).So the only components that set the ID are R4, R11, R12 and R15ID0ID1ID3ID4R44.32K8.66K21.5K34.8KR111.69K3.4K8.45K13.7KR121.91K3.83K9.53K15.4KR152.15K4.32K10.7K17.4KHas anyone else have values for R4, R11, R12 and R15 from other IDs?https://docs.google.com/spreadsheets/d/16VslfwP_YgZnVYq4AyuuF9MA8dwQInBXGkP8JXn2l00/edit?usp=sharing

author: javier.lopez.vlc
author_rank: Newbie
timestamp: July 12, 2023, 10:36:02 pm
content: Hi, I know this topic is long overdue, but I cant find a schematic to replicate the Fluke Cableiq WireView adapter.Has anyone gotten any information on this?They want to charge me more than €200 for a piece of plastic and two connectors. An abuse.Thank you for your time.

author: AVENZ
author_rank: Newbie
timestamp: February 05, 2024, 10:46:34 pm
content: Gracias por tu aportacion, fue de ayuda para hacer lo mismo en un equipo UNI-T UT685B. El texto impreso en el PCB marco 2 capacitores (C79 & C1) pero son resistencias realmente.Intentare fabricar ID's con la informacion del Post pues hay demasiadas similitudes de diseño.El UT685B no cuenta con ID's a la venta por el momento (Espero estar en lo correcto).Saludos a todos.CX=1nFD=Diodo Schottky

author: AVENZ
author_rank: Newbie
timestamp: February 25, 2024, 12:57:12 am
content: Ya mande a fabricar la PCB, monte los componentes y fue todo un exito. Ahora toca fabricar otros ID`S.

author: gabrieldevriendt
author_rank: Newbie
timestamp: June 02, 2024, 03:46:11 pm
content: hey guys, anybody has a files to update higher as 2.5.4 build 1110?If anybody needs the 2.5.4 build 1110 I can for sure also provide those files

author: CountParadox
author_rank: Contributor
timestamp: September 07, 2024, 11:05:50 pm
content: Any info on what those capacitors are in the above diagram? Trying to replicate this work !

author: kripton2035
author_rank: Super Contributor
timestamp: September 08, 2024, 07:30:12 am
content: I recall using 10nF for this.

author: eta10mcleod
author_rank: Newbie
timestamp: September 29, 2024, 04:07:09 pm
content: I was able to log in to the console of my Fluke LinkIQ.Running a cable test via console prints out all the measurements the device takes.I have attached the measurements for every Remote ID, I hope this helps.

author: morphis
author_rank: Newbie
timestamp: October 17, 2024, 01:06:08 pm
content: Ive found the values from ID5R12 21KR11 18.7KR4 47.5KR15 23.7KIve updatedhttps://docs.google.com/spreadsheets/d/16VslfwP_YgZnVYq4AyuuF9MA8dwQInBXGkP8JXn2l00/edit?usp=sharingI think Ive calculated the values for the missing ID2 ID6 and ID7I have also seen photos of ID8 - ID12

author: morphis
author_rank: Newbie
timestamp: October 24, 2024, 11:09:48 am
content: I now have all the values fro ID0 thru to ID6These values are based directly on the SMD markings for ID1 thru ID6.For ID0 (the internal loop back port) the values for R11 R12 and R15 are measure in circuit (forward and reverse, highest value is used), the measured values match the expected values.# |ID0 |ID1 |ID2 |ID3 |ID4 |ID5 |ID6R121.91K3.83K5.76K9.53K15.4K21K30.9KR111.69K3.4K5.11K8.45K13.7K18.7K26.7KR44.32K8.66K13K21.5K34.8K47.5K69.8KR152.15K4.32K6.49K10.7K17.4K23.7K34.8KI think the following is the scheme is use to calculate R4 R11 R12 R15 for each IDID0 X 2 = ID1ID0 + ID1 = ID2ID1 + ID2 = ID3ID2 + ID3 = ID4ID2 + ID4 = ID5ID3 + ID5 = ID6 ( R11 is only off by 700ohms from the actual marking on part )These are all fitted to the E96 series at each step.I've updated theGoogle sheetwith the actual values for ID 0-6 and the estimates for 7+, you can see the function used to cal and fit the estimate.

author: PVK
author_rank: Newbie
timestamp: November 19, 2024, 09:57:55 am
content: Hi All!I am looking for the wiremap identifier of the fluke 620Can you help me? Please!.........................I have one in use

author: BennoG
author_rank: Frequent Contributor
timestamp: November 19, 2024, 10:12:29 am
content: Quote from: PVK on November 19, 2024, 09:57:55 amMe too, I have a x-ray image of one.Benno

author: netufo
author_rank: Newbie
timestamp: November 26, 2024, 09:48:11 am
content: I have fabricated ID7 and ID8 according to the parameters you released. However, they cannot be recognized normally on the LinkRunner 1000.

author: evac
author_rank: Contributor
timestamp: January 17, 2025, 10:51:36 pm
content: I made a small PCB to try this for my NetTool series II which I bought without accessories, and at least for ID1 seems to work fine.I used 0.5% 0603 resistors, some random 0805 1nF caps and BAT54S diodes.Many thanks to andtfoot for the schematic and for morphis for the handy excel sheet!

author: kripton2035
author_rank: Super Contributor
timestamp: January 19, 2025, 08:36:43 pm
content: I also made a few pcb for my identifiers. I did make 4 of them.

author: Oleg_K
author_rank: Newbie
timestamp: March 02, 2025, 03:49:15 pm
content: Hi! I recently purchased a NetTool Series 2 on eBay, and everything works well except for the WireView wiremapper. When I connect it to the device, it shows an incorrect wiremap, as if the cable is improperly terminated.Ordering another identifier is risky due to long shipping times and the possibility of receiving one with the same issue. Since I’m not very experienced in reverse engineering, I was hoping you could help me by providing a PCB schematic for the WireView identifier. This would allow me to have a replacement board made.I came across your article and saw that you also have a NetTool Series 2. From what I read, you successfully designed and built a working schematic. That’s why I’m reaching out—your expertise would be incredibly valuable in helping me get this issue resolved.I’d really appreciate any assistance you can offer!

author: BennoG
author_rank: Frequent Contributor
timestamp: August 19, 2025, 08:14:58 am
content: Quote from: PVK on November 19, 2024, 09:57:55 amfot the 620 seehttps://www.eevblog.com/forum/projects/fluke-620-lan-cablemeter-remotes/