LXI Trigger Bus Cable and Terminator
Contents
1. When document i more tan five years old and has ot been eafined tis reasonabl o conclude thats content although stl of same vale do ot whl reflect the present stat ofthe an Users ae cautioned o check to determine ey have the latest eon of any LXI Consortium Standard publishing and making this document available the LXI Consortium sno suggesting or rendering professional other services fe or on behalf of any person entity No isthe LXL Consorum undertaking to perform any duty oved by anyother person o entity to another Any person ling this and any other LX Consortium Standards document ely upon ofa competen profesional detemining the eerie of reasonable caren ny given Srcumstancs ntecpetaos Occasionally questions may aise regarding the meaning of postions fof standards a they relate specific applications When the need fr interpretation is brought he ein of LXI Consortium he Consortium wll inate ation prepare appropriate responses Sine LXI Consortium Standards represent consensus of concemod interests itis important ensure tht any iterpettion has also reeived he concunence ofa Balance of intrest For this reason EXI Consortium and the members of is working groups ae ot ble to provide an instant respons o interpretation requests except those cases where mater has previously received formal consideration Trademarks Product and company names listed ae trademarks or trade2. and 30V The outer jacket has a minimum thicknest of 24 mil per AWM style 2502 The finshed able must be UL listed and CSA recognized Observation Outer Jacket Color The outer jacket colors no specified which lows cach manufacture to const cable assemblies which conform 1 is own corporate color schemes and standards 212 Rule Twisted Pair Wire Diameter And Insulation ach wise pata wies sal consis of two 26 gage silver plate copper sanded wise Each ite shal be insulted wit 4 mil nominal 12a minimum cellular ated foe 30 V nominal diameter ofthe 0 048 0 002 2121 Observation A minimum of 26 gage copper wire with surface conductivity equal to or than silver is eid to achieve necessary sytem bandwidth 213 Rule Twisted Pair Wire Color Coding The wires sed 8 tse pais shal color code such that each wii uniquely dental 24131 Recommendation Twisted Pair Wire Color Coding is recommended twisted of he LXI Trigger Bas cable be color coded per Table 2 2132 Observation Twisted Pair Wire Color Coding Since color coding does electrical connect or performance ofthe wits aer Suitable colo coding Scheme may be usd so long as each twisted and connection ean be Uniquely identified EUA N Cole Supe a Wine Orange Drago 5 White Green G
3. 5 extn Paired wih pin GND 5 5 Drains fom conn SIERT 6 6 6 Paired with pin 7 7 7 7 Paired wih pin Drains fom conn 1213 5 5 Paired with pin 10 10 Paired with pin 11 RESERVED 1 12 pin 15 15 Paired wih pin 12 Exp Paired wit pin 15 15 15 Paired wih pin 14 16 _ RESERVED ie NC 17 17 Paired wih pin TE Paired wih pin 17 19 GND 17 Drains fom cono TIS 20 Paired with pin 21 Paired wih pin 20 Drains fom conn 20 21 25 Paired with pin 24 3 IX Paired wih pin 25 35 RESERVED 2 NE 25 35 CHASSIS 35 Te Outer stich wires attach wo the connector shell 32 LXI Trigger Bus Cable Assembly Test Requirements 32 1 Rule LXI Trigger Bus Cable Assembly Test Requirements The completed LXI Tigger Bus Cable assembly sal te for peop continuity and short This mabe accomplished using standard cable ts equipment and fates 322 Rule LXI Trigger Bus Cable Assembly Wire Pairing The completed LXI Tigger Bus Cable assembly sal be compliance tested fr proper of the ferential signals 32 2 1 Permission Cable Assembly e Pairing The testing of wise ping for compliance testing wo assure as
4. Bus Terminator consists of eter 225 pin Mico D se plug connector which mats to an LXL Device or amadule with 25 pin Micr D syle jack which mates 1 an XT Eher device is wire oa pine cei and which supports the eed termination components and may inc components such as bus Rule LXI Trigger Bus Terminator Physical Size The completed 1 Terminator shall comply with all he requirements both elects and mechanical 25 pin Mic sie plug An XI Terminator implemented using plug connector shal be lager tana standard connector back sel Rule EMI Shielding Te termine sal shied to protect fom EM ration and the shied nut be terminado the metal shell ofthe connector The terminator device aust standard jack erst secure tos mating connector and guarantee connectivity Se figure 4 1 for typical implementation Rule Labeling The terminator shal externally labeled indicate ha the device isan XI Tiger Bus Terminator and to which revision af this pecificain it comple 42 LXI Trigger Bus Terminator Electrical Requirements Each end ofan Tiger Bus segment be terminated using an LXI Tiger Bus Terminator Block excep devices which have a singe tigger bus por and provide funtion The Terminator Block provides nominal 100 ohm fren termination each of the eight Trigger Bus channels and an AC common mode termination
5. This is aocomplished by wiring 50 him resistors in series and connecting a O 1UF ceramic capacitor from the center up of he ground See Figure 4 2 for schemati presentation of the LX Tegger Bus Terminator Block Refer othe rent LXI Specification Secon 56 for component 42 1 Rule Termination Lengths Tne connection lengths he termination resistors and captors kept minima to sure a high quality termination Ifthe Connection rom the teminatr connector to the termina greater than Sam the connections must be designed to provide 100 irreal impedance upto the termination network 42 11 Example Terminator Layout Figure 4 3 shows atypical bard or un LXI Tiger Bus Terminator The Printed is 0 700 by 0 500 in size has two andi constructed of 0 031 thick FRA ype material The termination eitrs ae 0402 size thick fn surface mount type ad the capacitor re 0603 size X7R delete surface mount type The tp layer i rpresentedin ed and he atom ayers repeseate in gen LXI Trigger Bus Terminator Test Requirements The LXI Tiger Bus Terminator shal be std provide temination when insted an stem 43 1 LXI Trigger Bus Terminator Test Method Using a precision ob meter uch a he 2000 or equivalent the resistance between each channels positive and negative connection is measured using the four wie resistance measur
6. is verified using an LCR bridge such she Agilent 42638 or equivalen 23 31 Capacitance Test Method 1 005 mer sample of cable is prepared or testing by siping back 2m of ote jacket and ating away the ate shield wires Separate the eight twisted pais and select he sume paras previously selected Remove 25mm ofits ane shel and sip ack the two signal wire Sm The LCR bridge i set to measure capacitance aa tet fequency of JOKHz andthe cable samples connected Connect one ofthe signal wies o the igh side of te LCR brigo and he other signal ite othe low side Record the conductor to conductor capacitance measured Remove the signal wire connecod the high side ofthe LCR bridge and connect he shield ein wie ints place connecting the drain wire to be high ide russ pickup Record the conductor fo shield eupacitance 234 Velocity Of Propagation The veloc of propagation is measured using the same equipment and setup used to measure characteristic impedance section 23 1 234 1 Velocity of Propagation Test Method The es cable assembly used in section 23 1 is connected TDR for measurement The TDR is ajuste s tha the smal bmp impedance where the ire cables ch to he test abe l visible well a the end of the cable wher the impodance goes foward infinity Using the cursors on he TDR measur tne fom the enter ofthe impedance bump to the point where che impedance goes This time
7. the LXI Consortum masters the process and establishes rues to promote aims inthe consensus development proces the LX Consonium does not exhaustively evaluate tes or verily che accuracy of any ofthe information contained in is standard Use ofan 1 Consortium Standard is wholly voluntary The LX Consortium and its members lability fr any personal injury property or oer damage of any nature whatsoever wheter special indie consequential of compensator directly resulting fom he publication use of or liane upon this any ther XI Consortium Standard document The LXI Consortium des ot warrant o represen the accuracy or comen ofthe material contained and expressly disclaims any express or implied warrant including any imple warranty of or Tess fra specie purpose or ha the use ofthe material contained herein is fee fom ptm inringenen XI Consortium Standards documents are supplied as The existence ofan LXI Consortium Standard does imply tat thee are no or ways produce test measure purchase market or provide ocr goods and services related scope ofthe Consortium Standard Furhermore viewpoint expressed the time a standards approved and Issued is Subject change brought about tough developments the site ofthe at and commons received from users of the standard Every Consortium Standard i subjected to review at east vey five year for revision
8. LAN ons for Instrumentation 24 Br LXI Trigger Bus Cable And Terminator Specifications Revision 1 1 August 28 2006 Edition 1 of Rights rights reserved This document property of he LX1 Consortium may be eproduced unaltered whole o in pr povided the LX copyright notice on every document pag Notice of The information contained in this document is subject o change without nice Preliminary releases for specification development and concept esting and may not reflect the final Released specication The LXI Consortium Inc makes waranty of any kind with regard to this material but ot ited othe implic warranties of merchantability and tess fra purpose The TEX Consortium nc shall pot be ible or ers or omissions contained herein o or incidental or consequential damages in connection withthe furnishing performance o se of is materia LXI Standards Documents are developed within the LX Consortium and LX Technical Working Groupe sponsored by the LXI Consort Board ofDirctan LXI Consortium develops its standards though a consensus development process modeled after the American National Standards Jste which Ding together voluntcers representing Varied viewpoints and intrest to achieve he product re necessary members ofthe Consortium and serve without compensation While
9. S division and the acquisition mode is average 32 readings Note that without averaging mui reading the crol signal will be Tugel busied in noise 3232 Wired Pairing Test Procedure The test for mis wied pais is peformed using a process elimination technique The pulse generates connected drive LXI via the LXI Trigger Bus Adapter The fs channel ofthe oscilloscope is connected tothe positive outpt ofthe LXI Tiger Bus Probe and ih econd chanel is connected to bash he positive and negative outputs of dough one output ame See Figures 33 trough 36 for examples of typical acilloscope displays fr and meters showing passing an falling Each oupu is checked for cos uk condition and ay output displays cable assembly hal fl his tet Once channel LXIO has been tested th pulse generator output is moved 10 XI positivo and negative outputs of the Trigger Bus Probe for channels tough checked fr cross alk LXIO does ot need o be checked sit has lead been confirmed not have across condition This process uni al XI Trigger Bus channel have bee confmod A cable assembly which has pase this test long withthe base conta test shall be confirmed compliant 4 LXI TRIGGER BUS TERMINATORS 412 LXI Trigger Bus Terminator Mechanical Requirements An LXI Tiger
10. delay tough 1 meter of est cable Note thatthe st cable must accurately measured and o witha Sm of 1 me 1 Te velocity of propagation by dividing the velciy of ight by one hal the measured delay measured delay sound ip ime up and down he test cable mes 10 percent Velocity of Propagation ea Record he measued velocity of propagation and it conforms tothe requirements stated in Table 23 235 DC Resistance The DC resistance measurement is made using four wire method A digital multimeter which can resolve minimum of 10 miliohms is required suchas the Keithley model 2000 shouldbe used 2351 DC Resistance Test Method A 20 mete sample ofthe cable is prepared or est by removing atria gathering up the outer shed wiss and twisting tem together at bah end A single Insulated wie is from a twisted pair at both ends and its insulaion i stepped hack 3mm on ich end Wire the tw ends of the sample cable using the fur vio measurement technique refer tothe DMM s user manual for deal Ran the measure resistance and confirm hat it conforms 1 he requirements tated ia Table 23 forthe conductor DC resistance Wire the DMM tothe two ens ofthe outer shield wie were guhered up in the previous step ofthe same 20 meter sample Measure the esitance of the shield wires using the fur wine measurement technique Record the meas
11. han stating rules RECOMMENDATION Recommendations consist of advice implementers ha wll atthe ofthe inal device Discusion of particular hardware o enhance thvoughput would fall tinder recommendation These should be followed avoid problems and to optimus performance PERMISSION Permissions ar included to the ares of the specification that are not specifically prohibited Permissions the reader approach is aceptable and will suse no problems The word MAY is reserved for indian permisos OBSERVATION Observations spel out implications of ules and bring tation that might olberwise he overlooked They alo give the role behind cen ules that reader understands why ih ue must followed Any ext that appears without heading sould be considered as description ofthe specification 2 CABLE REQUIREMENTS 21 Mechanical Requirements The LXI Tiger Bus cable sa round cable consisting of eight wise pts Each twisted pir is Individually shielded With an alminummlar wrap and a 28 gage sanded dain wie The eight twisted sub assemblies are combined with a poly ile wrapped wih 38 gage tileoppe serve outer shield which i covered with a mylar separator The cable then covered with a PVC outer jacket Outer Jacket Material and Thickness The ower jacket nominal 30 mil ick pressured PVC construction rated for
12. he LX Standard that terminates the differential pue transmision line used on the WTR wr Wired Tigger Bus Agilent Technologies Keithley Instrument Inc Switching Cory Venture Design Services itech Group Int Led Inc Mindworks Soffec Microsystems
13. his pen sight The olde ofthis patent ight has assured the LXI Consortium tha ehe ls willing to negoit licenses under reasonable nd tems and conditions With throughout the world respect the sstmeat of the o his ptes sight is with de XI Consortium Additonal information may he ran the LX Consoniums Web ste up standar oe Aston drawn tthe posit hat some ofthe elements ofthis document may the subject pen sights tan tone denied above The Consortium bal be eld responsible or identifying any or all sch patent Comments fr Revision Comments fr revision of 1 Consortium Standards ae welcome fom any interested part regardless membership with LXI Consortium Suggestions for hinges in documents shoul be ia the form o proposed change of tx wh propia Supporting comments Comments standards ad requests far interpreto soul adresse Secretary LXI Consortium Standards Board Revi 1 1 August Fist release 1 Overview The LXI Tiger Bus is implemented using cabling system o interconnet multiple LXE instumens Each LXI Device that supports the LX Tr ger Bus has two Trigger Bus connectors that provide a connection ofthe bus Te interconnecting cables fon the backbone of he Trigger Bus with the signals routing Hough cach ptcipating instrument At ech end
14. hows the west setup The pulse generators LA Trigger Bus Adapter such hat itcan dive anyone ofthe eight LXI Tigger chanel The Trigger Bus Adapter dives the Cable Under Test and provides the terminations equi a that endo the cable The endo the Cable Under Testis conecte othe LX Trigger Bus Probe The LXI Trigger Bus Probe raus ype connections requires an external terminator The oscilloscope monitor output of the Probe and wo channels are required One channel monitors driven channel and provides tigger sauce for the andthe other channel is sed to check fr crosstalk tothe LXI Tigger Bus signal pa The pulse generator peovide 10 KHzsquare wave ouput with an amplitude aproprae vo dive the LXI Tigger Bus Adapter see the user s manual for det The LX Bus Adape is configured fr deve mods ouput ll channels and the pulse generator is connected to dive channel EXIO The other Channel ate set to fixed low sate The osiloscope i setup wth one channel et 0 200m Vision 50 DC coupled input and is connected the postive al of the driven channel beginning with The second channel ofthe oscilloscope st o IM AC coupled input The second chanel input is used check the cable connections fr cross talk The oscilscope horizontal i efor 200o
15. ing technique Verify that each channel measures 100 ohms 34 Using an LCR bridge suchas the Agilent 42628 equivalen et to measure capacitance and sesos resistance and operating measure rom each channel s postive and negativo connection ground Very ech chanel connection measures 5 20 wah 30 oh 7 56 series resistance Verify that the series resistances measured forthe postive and negative Connection of each chanel are within 2 ofeach othe Appendix A Glossary of Terms AWG American Wire Gage Measure of wie diameter Appliance Wing Material UL designation for atype of wie Canadian Sundar Association Lvps Low Voltage Differential Signaling 1 Lan Extension fr Instumentation LXI Device An instrument o tbe device which conform tothe LXI standard Micro D Connector Connector syle the commercial version of which is specified to be used onthe WTB in the LXL Standard This connector is compatible withthe high reli Version ofthe connector sed in applications Multipoint Low Volage Differential Signaling conforming to TIAVELA 99 standard un Underwriters Laboratory Time Domain Refletometer method of measuring impedance and in a wansmission by a pul down te cad bring te ecos a ato tine unes dove Terminator Device specified in t
16. le 2502 Permission Use Of Alternate Materials ter materials may be used so long cable meets al the specified electrical mechanical and safety requirements specie in his document Observation Use of Alternate Materials The materials wed inthe onsrutin ofthe dict affect the electrical performance mechanical performance and salty approval 22 Electrical Characteristics A cable the standard asthe characteristics in Table 23 Som DIE Taped als oT Nom Inductance 0 7 Nom Capacitance Conductor To Conductor 410 pinar Nom Capacitance Conductor Other Conductor amp Sed 65 4 meter oz Nom of Propagation Conductor DO Resistance GUT TST as TOE Nom Outer Sheld DO Resistance 307 TT ohms 7100 miter Max Operating UL SOV RMS 221 Rule Electrical Characteristics a cables constructed using maras fom those identified in Table 2 resulting cable shall coform tothe specications listed in Table 25 23 Cable Electrical Conformance Testing Te following section describes he tents cable manufacturer should use to demonstrate compliance af a sample cable othe LXI Wired Trigger Bus Cable Specification supplier of XL Wired Trigger Bus Cable Assemblies should ensure tat the cable use in constructing Cable Assembly has been
17. names oftheir respective Companies No investigation hasbeen made of conunen law trademark righ in any work registred the LX Consortium abd this specficain the equiements needed to claim LXI compatiblity The speciicaion to ensue compatibility among devices when sed in test system envionment and authors ied to bas in favor ofa simple use experience Wako tiesto define interfaces rater han implementations whenever posible preserve smpany speifie nella propeny This petiminary establish a starting oia forthe LX speciation The LXL Consortium of Disctors vil comision technical commie o move his specification forrar and is expected les and recomumendatins descihed in dis ial deat will ein unless they ate ound to he incorrect incomplete Severs sections highlight Road ems These tens were considered but ot competed duc o insufiient Une o expense Some lke software wiggering must be completed prior o compliant products hors may not be eid to release LXI products This specication isthe property ofthe Consortia 3 Delaware SOLES corporation forthe use ais members Patent Notice The LXI Consortium deaws tention tothe fact that tis claimed that compliance with his document may involve the use of patent o patents concerning technology described within the document The LX Consortium takes no postion concerning evidence validity and Scope of t
18. of an XI Tiger Bus connection segment aterination device whichis provided by he LX Trigger Bus Terminator The LXI Tiger Bus Terminator is attached tothe second at each segment end 1 the end of the lst cable The requirements in ths Standard define the conucon and esting ofthe raw interconnecting cable mate the constuction of finished LX Trigger Bus cables and the construction and testing ofthe LXI Tigger Bus termination block Compliance with the requirement fot in his Standard assures generic cabling performance and itroperbity when products fom different manufacturers re mate 11 Intended Audience This LXI Standards intended for use by designers and manufacturer of devices intended to support the LXI Trigger 12 Purpose And Scope This document species the requirements for he cable used 10 construct Trigger Bus Cabe assembles I defines the mechanical construction apd the characteristics ofthe cable The Standard so provides construction deal forthe completed LXI Tigger Bus cable and EXI Trier Bus termination blocks 13 Definition of Terms this document you will sc the followin headings on paragraphs These headings dnt the contents ofthe paragraph RULE Rules SHALL be followed to ensure compatibility for LAN base devices Arle is haracterized bythe we ofthe words SHALL and SHALL NOT These words ae not wed for any her purpose other
19. re White ETT Brown White 5 White White Red Blue Red Orange Drange Red Red Green Green Rad 2 1 4 Rule Twisted Pair Shielding Each wise pios sal inv with aliens oi The 0d al te wound with the conductive surface towards the inside long with 28 gage tia plated copper Ain wir or connectivity othe sil 24 5 Rule Mechanical Construction of Twisted Pairs Each of the wise pits used to construct the Wins Trigger Bus able hal be bu Figur 21 The material el shall be a 22 2 1 6 Rule Mechanical Construction Of The Completed Cable ight wine subassemblies shall combined with a center core wrapped with an outer sick jacketed Figure 22 The materials used shall be a Mente in Table 22 217 Rule Materials Used Te cable shal constructed using material types Use in Table 22 Ten ne Maca R Signal Wis Comoe AWG Sie Pad Copper Sada 000677 Concente 0 0 001 pan Wis AWO ated Copper 7x UST Signal Wie Toulon nl lua MIC SOV 12 il min polyehylene insulation Nominal 0 018 0 002 AWM syle 1589 Au sere For Const Core Filler Polyethylene ler Separator pague Mar MW Tour SH 38 AWG TiniCopper spade He ASK coverage T Om 30 mil pessund PVC 24 mil minimum PVC AWM sty
20. sample texted 231 Characteristic Impedance The characteristic impedance of each twisted shied pir shouldbe measured using Differential TDR Time Domain Reictometes sich a an Agilent model 54754A plugin installed in an appropriate Agilent 861008 or equivalen or other equivalent TDR 2311 Characteristic Impedance Test Method A 100m sample ofthe cables prepared fr ts by removing 3 Sem ofthe outer insulation mate up the outer shield wire and twisting htm together tone only twisted pai exposed by moving mm o the shielding fol thereby exposing two insulated wires and a hare drin wire The inslatedwites re sipped back expose the conductors Two coaxial cable assemblies prepared using Scan of SO 0 085 coaxial cable with SMA connectors on one ead The oer end ofeach cable assembly has the bid and let sipped back un The stripped end ofthe two coaxial cables ide y side und the outer rads are soldered together over length of approximately Gem fom the stripped ends The es cables then tacho th coaxial cables with he dain wie tached to coaxial ales braids and with each of the twisted Wes connect one ofthe Wo center conductos See Figures 23 and 2 foe dt The two SMA connector ar tached othe TDR s test prs andthe TDR is adjusted to display she reflected waveform fom the inal edge endo the cable where the impedance goes wa
21. sembly methods are Adell wie pie esting would also be performed a part production est may prove to be Spniicanly cumbersome implement ina production environment Once proper assembly meds are estais demonstrated by the compliance est production est fr wire is equi 32 22 Observation Cable Assembly Wire Pairing While comity testing assures that al signas ae canected and not it doesnot assure that each different signals pared in the cable assembly 323 Wire Pairing Test Method Aa LX Tigger Bus cable i tested for proper signal paring by esting forthe presence of to trae channels Since each pi is individually a popedy constructed cable assembly should Show very low Teel o alternate channels A cable assembly which has one or mote connections wll display notable amount of cosa oan aerate chanel revealing the connection 323 1 Wired Pairing Test Setup The wire ping test setup consists pulse generator Tektronix AFG3252 equivalent Trigger Bus Adapter Pickering lnteraces PAN 0 982 002 equivalent an LX Trigger Bus Probe cheng Interfaces 60 981 00 o equivalen an LXI Tigger Bus Terminator Assembly Corporation PIN U712003 o equivalent An Osiloscope with minimum IGH bandwith Tektronix or equivalent and the LXI Trigger Bus cable assembly under et Figure 32 s
22. t ifn The TDR should hen be adjusted 10 measure the diera impedance st into the test able to avo readings due to he transition aras where the test able assembly attaches cable under test Record the measwed impedance and conos tthe equiemen sated in Table 23 ure 23 232 Inductance Te inductance ofthe signal conductors is verified using an LCR beige uch asthe Agilent 42638 2321 Inductance Test Method 1 05 meter sample of cable is prepared or testing by siping back Stam of outer jacket and ting away the ute shield wirs signal piri selected tbe wires exposed by removing hei ine shied Ti nd ate sipped back The two signal wies along withthe shield dain ite are joined together and soldered or end o the cable 25mm of outer jackets sipped away and the outer shield wies ate ut avay Sopuat the igh wise pis and select same pai as selected Remove 2mm ofits nner shield and rip back the two signal wires Sm One of the two signal connection is connected tthe shield drain wire The LCR bridge i se to measure inductance at test reguency of and the cable sample is connected Connect the wie with the drain wir othe high side ofthe LCR bridge and the ete te othe low side connecting the an wie the high side educes noise pickup Record the Inductance messed 233 Capacitance The capacitance of the signal connection
23. ured resistance and confi that conforms the eguirements std in Tale 2 fr th ote shield DC resistance 3 FINISHED LXI TRIGGER BUS CABLE ASSEMBLIES Finished LXI Trigger Bus Cable Assembly Requirements The LXI Trigger Bus cable assemblies consist ofa length of LXI Trigger Bus compliant cable wired to industry standad Micro connectors teach end Rule LXI Trigger Bus Cable Connectivity The LXI Tiger Bus cable assemblies shall be wired per Table 3 1 Cable assemblies shall specifically not connect he 3 vl pi the 43 3 vol ten Reserved pins 34 2 Rule Connector Shielding Each Micro D connector hal provide shielded ack helo pros against une emissions and provide a mechanical sai ei 34 2 1 Observation Connector Construction The buck shell may be designed as a metal casting which provides soil EMI management and an exterior finish The conector may alternately be designed asa formed metal compose with a plastic boot a plastic over mold covert provide the Finish component Rule LXI Trigger Bus Cable Labeling An LXI Trigger Bus cable shall e labeled withthe LXI log the revision ofthis specification to which it complies a length in metes an example of which shown in Figure 3 CONN SIGNAL NAME PT BIN WIRE COLOR PEPIN NOTES Tes NIC T 2 sav RETURN 2 NIC 2
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