3Mメーカー965DPSの使用説明書/サービス説明書
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In st ru ct io n Ma nu al June 2005 78-81 30-7429- 7-F Dy na te l ™ 96 5D SP Se ri es Su bs cr ib er L oo p An al yz er s Includes Spectrum Analyzer (optional) and Acti ve ADSL Modem (optional).
2 W el co me to the Ins tru cti on M anu al f or t he 3M ™ Dy nat el ™ 965 DSP Ser ies of Su bs cri ber Loo p An aly ze rs. The 965 DSP Ser ies inc lud es t he 9 65D SP , 96 5DS P/ ADS L, 9 65D SP/ SA a nd 9 65D SP/ AD SL/ SA Lo op An aly ze rs.
3 T able of Conten ts Out of the Box ....................................................... 4 Front P anel ............................................................. 5 Control K eys ..................................................... 6 Editing .
4 Out of the Box What you will f ind when you unpack the shipping box: • 3M ™ Dynatel ™ 965D SP Se ries Subscrib er Lo op Analyz er • Carr ying case • NiMH batt ery pack (inside the 965DSP) .
5 Scree n The 965DSP screen is a graphical LCD (Liquid Crystal Display) that gi ves high resolution for vie wing text and graphics. The screen format is similar to the follo wing for most functions. T est Leads The T est Lead icons are shown on each of the measurement screens.
6 Contr ol K eys Use the red and yellow keys to control the actions and the setup of the 965DSP and its functions. The activ e control k eys for each function are shown at the bottom of the corresponding 965DSP screen. Use the [Return] ke y to return to a pre vious step in a function.
7 Funct ion Keys Use the blue ke ys to select the dif ferent test functions in the 965DSP . The blue keys become number or letter k eys when editing. Use the [V oltage] ke y to measure DC or A C v oltage. Use the [Current] ke y to measure loop current.
8 W elcome Scr een This is the screen that you see when you f irst turn on the 965DSP . It sho ws the model name, installed options, serial number , copyright year , software version, and the selected country . The battery symbol in the upper right-hand corner of the display gi ves an indication of the approximate battery capacity .
9 Count ry Use the Country setup to configure the 965DSP for a specific country . Selecting a new country will configure the 965DSP with the setups for language, units, clock format, wire gauges, and cable types for that particular country . Use the [Up] and [Do wn] keys to highli ght a Count ry .
10 Use the [Up] and [Do wn] keys to highli ght the op tion. Use the [T ab] key to select the param eter for each unit of measure ment. Distance: F eet or Meters. This af fects all distances displayed in the 965DSP . Degrees: F ahr enheit or Centigrade.
11 TDR: Vp (V el ocity of Pr opag ation) or m/µS (meter s per micr osecon d). This affe cts the TDR “velo city of propa gation. ” Use “Vp” in the US and Ca nada. Use “m/µS” in other count ries. Use the [Enter] ke y to accept any changes and return.
12 Set Beep Use the Set Beep setup to turn the ke y beeps on or of f. Use the [T ab] ke y to to ggle between on or off. Use the [Enter ] k ey to return. Set Clock Use the Set Clock setup to change the date and time. Use the [T ab] key to select eith er th e dat e, ti me, or a.
13 A utotest Limi ts Use the Autotest setup to change the pass/f ail threshold v alues for the Inacti ve Pair , Activ e Pair and W ideband Autotests. Use the [Up] and [Do wn] keys to highli ght the desir ed Autotes t par ameters to modify .
14 When the Inacti ve Pair , Acti ve Pair or specif ic W ideband servic e is selec ted, the Thres hold Limits scree n wil l be displ ayed. Thi s scr een displays a list of measure ments perform ed in the selec ted Autote st and the corresp onding pass/f ail limits for each measu rement.
15 Print er Use the Printer option to set the printer output type. Use the [Up] and [Down] arrow keys to select either graphics or text output, then press the [Enter] k ey to accept your selection and return to the Setup menu.
16 P ower Down Ti meout T o change the power down timeout, press the [Setup] ke y from the W elcome screen, then select Power Do wn Timeout. Use the [Up] and [Do wn] arro w ke ys to select the desired timeout period, then press the [Enter] k ey to set that period as the default.
17 Edit Wir e Gauge This f unct ion all o ws you to se t up cust om wir e ga uges to b e used wh ere v er the se t uses a wir e gaug e men u. Pre ss the [S etup ] ke y from th e W el come scr een, u se the [D ow n] arr ow k ey t o scrol l to Edit W ire Gau ge, an d then pr ess the [ Ente r] ke y to edi t.
18 V ol tage T erminati on (s upported coun tries only) Thi s opti on allo ws you to s elec t the inp ut impe danc e of th e 965DS P digi tal v oltm eter . Pres s the [Se tup] ke y f rom the W el come sc reen , use the [ Do wn] ar ro w ke y t o scrol l to V ol tage T ermi nati on, and t hen pre ss the [ Ente r] ke y to sel ect.
19 If 100K ohm te rminatio n is selec ted, the 965DSP will displ ay ‘1 00K’ on the vo ltage measure ment scree n as indic ated belo w . User Inf o This selection allows you to add optional additional inf orma tion t o your sa ved re cord s.
20 Contr ast/Back light Press the [Contrast] ke y to display the contrast screen. Use the [Up] and [Down] arrow keys to adjust the contrast. Press the [Contrast] ke y again to turn the backlight on or off. Use the [Enter] ke y to return. Use the [T ab] key to select ‘ON’ or ‘OFF’ and [Enter] to sav e your selection.
21 Help Press the [Help ] k ey at any time in any screen to get help on that functio n. Press the [Ente r] or [Ret urn] key to return to the pre vious scre en. High V oltage This screen indicates that a high v oltage (120 V ac/ Vdc or greater) has been detected between the test leads when not in the V oltage Mode.
22 Press the [T ab] ke y to mo ve to the next test lead conf igura tion. The high lighted readi ng is “li ve” and the non-hi ghlighte d rea dings are the last valu es. Press the [Ente r] k ey to switch from the DC to the A C v oltage measu rement.
23 This scree n ind icates that a high current has been detec ted between the test leads and that the 965DSP has opened an intern al re lay to pro tect itself from damag e. Us e sta ndard safet y pra ctices for disco nnecting the test leads . Pre ss th e [En ter] key to restart the 965DS P .
24 Resis tance This function first measures the resistance between the red and black test leads. Press the [T ab] ke y to mo ve to the next test lead conf igura tion. The “V” in the up per right corner of the screen indic ates that the resistanc e mea surement compe nsates for C.
25 Soak T est Use the Soak T est function to continuously measure the non-compensated resistance tip to ground and ring to ground simultaneously . Press the [Right] arro w ke y to access the Soak test from the Resistance screen. Connect the red and black leads to an inactive pair .
26 T oolb ox The “T oolbox ” men u con tains a se lection of funct ions dependin g on the option s equ ipped in the unit and the Country Code sele cted during Setup (i.e. Call er ID is av ailable only in North America and ADSL Store d Res ults is on ly a v ailable on /ADSL- equip ped models).
27 Self- Calibrat ion Use this function to calibrate the 965DSP anytime the outside temperature changes by more than 35°F (20°C), after changing the batteries, or anytime the battery pack completely dischar ges. Calibrate the 965DSP at the same temperature at which it will be used.
28 Load Coils This function counts up to fi ve load coils on the pair and determines the distance to the first one. The distance measurement requires that you specify the wire gauge of the pair . This is done in the Load Setup screen. Use the [Up] and [Do wn] arro w ke ys to highlight the correct wire gauge.
29 Kick T est Use the Kick T est function to continuously measure the v oltage, resistance and capaciti ve length on tip- ring, ring-ground, and tip-ground. Connect the red and black leads to the selected pair . Connect green to shield or ground. Press the [T ab] key to mo ve to the next lead configuration.
30 Stor ed Results Use this functi on to vie w pre viously stored resu lts of the Autotest or TD R fun ction. If no re sults hav e been store d, “N o Res ults Stored” will be visible on the scree n. If one or more test results ha ve been store d, the ID number for each will be displayed .
31 Press the [Ente r] k ey to delete all sav ed results . Press the [T ab] ke y to dele te th e sa ve d res ults of th e selec ted ID. Pr ess the [R eturn] ke y to retu rn to the main Resul ts sc reen. Upload Results Press the [T ab] ke y to disp lay the Up load screen.
32 Select Results Use the [Up] and [Do wn] keys to highli ght the desir ed st ored result. Press the [Ente r] k ey to select the highli ghted result and displa y the stor ed re sults list for that ID number by type (Autotes t or T DR), date and time. Use the [Up] and [Do wn] keys to highli ght the desir ed st ored result.
33 ADSL Resul ts Use this function to view previously stored ADSL Modem test results (/ADSL option only). Note: “ADSL Results” does not appear in the T oolbox menu unless the /ADSL option is installed. If no ADSL Modem test results hav e been stored, “No Results Stored” will be indicated on the screen.
34 Press the [Enter] ke y to upload all of the sav ed ADSL results. Press the [T ab] ke y to upload the sav ed results of the selected ID. Press the [Esc] ke y to return to the main ADSL Results screen.
35 Use the [Up] and [Down] keys to highlight the desired stored result. Use the [Right] ke y to delete the selected result. Use the [T ab] ke y to upload the selected result to a PC. Press the [Enter] ke y to view the ADSL test results for the highlighted selection.
36 Calle r ID This function detects the Caller ID signal sent on the pair and displays date, time, the calling number , the calling party name, the signal le vel, and the message status. Certain result boxes may be blank if the information is not av ailable.
37 Ringi ng Le ngth (A) - The measu red time duration of the firs t Rin g Burst . Pr eseize Time (B) - The measu red time period between the f irst Ring Burst and Chann el Se izure. T wist - The ratio of the recei ve d Mar k and Space signa l le vels.
38 Speci al Re sistance Use this function to measure the: • Loop Resistance between the red and green test leads. • Resistance of each conductor connected to the red and green test lead. • Resistance Dif ference between the two conductors. Conne ct th e red lead to one side of the pa ir .
39 Gr ound Res istance Use this function to verify the protector ground resistance compared to a Central Off ice (C.O.) using the 965DSP and an active pair . Conne ct th e red lead to Ring of the acti ve pair . Conne ct th e bla ck le ad to Ti p. Conne ct th e gre en le ad to Grou nd.
40 Ohms/ Distance Use this function to conv ert from Ohms to Distance based on temperature and wire gauge. Enter the v alue of Ohms, then press the [T ab] key to selec t ga uge or tem perature . If you select “ga uge, ” press the [Up] and [Do wn] ke ys to sele ct th e des ired gaug e.
41 K-T est Use this function to find the approximate distance to a resistance fault when both wires in a single pair are f aulted at the same place, and a separate good pair or a single loop conductor is not av ailable.
42 Conne ct th e red lead to R2, the wire to th e hea vier fau lt (l owe st re sistance v alue). Conn ect the gr een lead to R1, the wire with the li ghter f ault resistan ce (the highe st re sistance v alue). Conne ct bl ack to the refe rence wire (either the shiel d or another cond uctor in the ca ble).
43 K-T est Ho okup: Close F ar-E nd The 965DSP will display the following screen if it does not detect any hook-up errors during the “Open Far -End” test. The “Open Ratio” v alue displayed on the screen is the ratio of R1/(R2+R1) times 100. This value is used by some companies as part of the K-T est measurement.
44 K-T est Re sults The 965DSP will display the following screen if there are no problems with the “Close Far-End” portion of the test: The 965DSP disp lays the Resistanc e to Strap (R TS), Resis tance to Faults (R TF) and th e Res istance Strap to Faul ts (R STF).
45 K-T est Su mmary If you press the [Enter] key in the previous screen, the 965DSP will display the following summary of up to fi ve K-T est results: The 965DSP disp lays the Resistanc e to Fa ults (R TF), Resistanc e Str ap to F aults (RSTF), and the Resist ance to St rap (R TS) for up to fi ve measu rements.
46 K-T est Er ror: Flip red and gr een The 965DSP will f irst make a measurement to verify that the heavier f ault is connected to red and the lighter fault is connected to green.
47 K-T est Er ror: R1<2 *R2 The 965DSP checks to see that the fault on the green lead is at least twice the value of the f ault on the red lead. This screen indicates that the ratio of the f aults is too low . Press [Ent er] to ret urn to the init ial “K-T est Ho okup: Open Fa r-En d” sc reen.
48 K-T est Er ror: Rloop > 7k Ω The 965DSP checks to see if the resistance of the loop is less than 7k Ω . If the resistance is greater than 7k Ω , then the distance to strap may be too long, the strap is not connected, or the far -end switch did not switch properly .
49 K-T est Er ror: R1+R2<10 0*Rloop T he 96 5D SP c he ck s t o s e e t ha t t he s um of th e f au lt s i s m or e t ha n 1 0 0 t im es th e lo op re si s ta nc e. T he 96 5D S P w il l d is pl a y t he fo ll o wi ng sc re e n i f t he su m of th e f a ul ts i s l es s t ha n 10 0 t im es t he lo op re s is ta nc e.
50 Press ing the [T ab ] k ey again will retur n the scre en to Ringe rs Ca pacitanc e. Pr ess the [E nter] ke y to repea t the test. Ringe rs Th is f unc tio n me asu re s the cap aci ta nce ass oci ate d wi th o ne or mor e ri nge r ci rcu its on th e li ne o r the eq ui va le nt nu mb er of rin ger s (1 rin ger = 0.
51 Splic e Loc ate Use this function to find the location of a splice in two sections (of dif ferent wire gauges) of cable. If you select either sect ion, use the [U p] an d [Do wn] ke ys to se lect the wire gauge. Y ou may NO T us e the same gaug e for both sect ions.
52 Opens This function measures the distance to a complete “open” on a pair based on a selected cable type. “Opens” is more accurate if other cable pairs are acti ve. If other pairs are not acti ve, short at least 30% of the inacti ve pairs to the cable shield.
53 Press [Ent er] to acc ept the ch anges and return to the Opens Setu p scr een. Press [Return ] to retur n wit hout makin g cha nges. First ente r the red to black capaci tance per unit dista nce using the blue keys . This is also called “Mutu al” capacitan ce.
54 Enter the lengt h of the sectio n and pres s the [Ent er] ke y to mea sure the capacitan ce. The 965DSP will then disp lay the me asured capac itance/d istance for the referen ce pa ir . Press the [Ente r] k ey to accept the results as the “Cali brated Cable” and retur n to the Setup scree n.
55 T one Use this function to send a tone on a pair . Use the [Up] and [Down] keys to select the desired tone. Note that there are ten tones. Use [Up] and [Do wn] to scroll through the tone selections.
56 Pre cision T one ID T one High Fre quency T one The vo lume of th e ton e hea rd in the 965DS P spe aker may be adjusted for the ID T one and the Precisio n T one.
57 Press the [Setu p] k ey to edit the selected tone and go to the follo wing screen : Use the [T ab] key to select the tone type, freq uency or le vel. Use th e k eypad to change the v alues. The freque ncy range is 200 to 10 00 Hz for ID T ones , 200 to 19999 Hz for Pr ecision T on es, and 20 KHz to 1200 KHz for High Frequen cy T ones .
58 RFL (Resis tance Fa ult Locate) Use this function to locate a Resistance Fault on a pair or on a single conductor . There are two possible hookups: Separate Pair or Single P air .
59 Durin g the meas urement a bar graph of th e measu rement null vo ltage for R TS an d the n R TF wi ll be visible at the bottom of the screen. Conne ct th e red test lead to the fault ed wi re. Connect the black Lead to the referenc e. (T he re ference is the retur n pat h for the fau lt an d can be the shield or another wire in the cable.
60 The screen sho ws the fa ult resistanc e bes ide the resis tor symbol. Th e wir e ga uge, temperat ure and secti on nu mber are displayed abo ve the bottom bar . If the Y ield Sign sho ws beside the result s, th is indic ates a pos sible mar ginal result (due to noise or other line cond itions).
61 RFL Single P air Use the RFL Single Pai r hoo kup when only one wi re in a pa ir is fa ulted and a sep arate good pair is not a vai lable. Use the Separat e P air hookup for all cases in whic h a separ ate pair is ava ilable; it is always the pref erred method .
62 Durin g the meas urement a bar graph of th e measu rement null vo ltage for R TS an d the n R TF wi ll be visible at the bottom of the screen. The result s at the top of the sc reen indicate the “Dist ance to St rap”. The resu lts on the secon d lin e indic ate the “D istance to Faul t” an d the “Dis tance, Strap to Fau lt”.
63 RFL Setup: Sing le Se ction Use the RFL Setup to change W ire Gauge and/or the cable T emperature or enter a kno wn Distance to Strap. Press the [Setup] ke y to display the current settings. There are two poss ible single pair hookup erro rs: 1) the Fault is greate r tha n 20 M Ω , or 2) the red/gree n str ap is bad.
64 Press the [T ab] ke y to sele ct ei ther the wire gauge menu, cabl e tem perature , or lengt h (di stance to Strap ) for edit ing. If you select the W ire Gauge menu, pres s the [Up] and [Do wn] ke ys to sele ct th e des ired gauge. If you choose T emper ature or Length, enter the ne w valu e usi ng th e blu e num eric key s.
65 Note: Enter the temperat ure of the enti re ca ble. Y ou ma y not ente r sep arate tempera tures for each secti on. Enter “#” for the tempera ture if it is unkno wn and you want the 965DS P to compu te th e tem perature . The Multi- Section scree n sho ws a summa ry of up to six sections , and the commo n tem perature for all secti ons.
66 Press [Ent er] to acc ept the ch anges for the section and return to the pre vious RFL Setup screen . Pre ss [Retu rn] to ret urn without making chan ges.
67 Press the [T ab] ke y to disp lay the re sults in ohms. Press the [Ente r] k ey to retest the same pair or the [Retu rn] key to test a ne w pai r . RFL Multip le Re sults There are two possible formats for displaying the results of an RFL Multiple measurement: 1) The temper ature is known.
68 2) The temper atur e is unknow n. In this case the scree n wil l sho w the ente red Distance to Strap (or the sum of all se ctions) in the main result box, and will sho w the calculate d tem perature at the bottom. The screen also sho ws the numb er of the fau lted secti on at the lo wer right side of the screen.
69 RFL Errors One of sev eral errors may occur during an RFL multi-section measurement. If the RFL measurement terminates due to a time- out, a “Y ield Sign” will be displayed ne xt to the DSTF or RSTF result, as shown. This indicates that the results may not be accurate.
70 If the temperat ure is kno wn an d the tota l of the speci fied sect ion lengths is greater than the measur ed dista nce to str ap, then the ca lculated unkn own secti on le ngth would be neg ati ve.
71 DSL Use this function to perform specialized tests on ISDN and DSL lines. Use the [Up] and [Do wn] arro w ke ys to mo ve to the desired test, then press the [Enter] k ey to accept the choice.
72 Conne ct th e red and black lead s to the pair and press the [Enter ] k ey . The 965DSP displa ys th e w ord “Conn ecting” while the instr ument goes through three step s: 1) AIP (A cti vat ion in Pro gress), 2) Sync (Synchr onizatio n) , and 3) Link (succes sful connecti on).
73 The 965DSP will coun t and disp lay the nu mber of near -end and far -end error s. “Near -end” errors are the errors detect ed at the 965DS P . “Fa r-en d” er rors are errors detecte d at an ISDN line card. (The fa r-en d cou nt is tran smitted to the 965DSP o ver the ISDN link.
74 ADSL Modem (/ADSL option only) 965DSP models which include the ADSL modem function are identified by the /ADSL option on their W elcome screens. The W elcome screens for the 965DSP/ADSL and 965DSP/SA/ADSL are sho wn belo w .
75 ADSL Setup Us e ADS L se tup to se lec t th e de sir ed t est typ e, AD SL s erv ice typ e, a nd to ena ble or di sa ble Pa ss/ Fa il th res ho lds . Us e the [T ab ] k ey to mo ve b etw ee n f iel ds an d th e [Up ]/ [Do wn] arr o ws t o sel ec t an o pti on.
76 mi nim um a cce pt abl e da ta ra te f or t he se rv ice gra de in the R ate fi el d. Ca pa cit y is t he r ati o of t he a ctu al co nne ct r ate to th e ma xim um r ate tha t th e lin e ca n su ppo rt . Lar ger cap aci ty v alu es i ndi ca te le ss n ois e ma r gin and l o wer tol era nc e for lin e di stu rba nc es.
77 ADSL Connecting The 965DSP displays this screen while it is connecting with the DSLAM. Status messages about the connection process are displayed as they occur . The hour glass indicator at the bottom of the screen is displayed as the connection process proceeds.
78 Otherwise, the Status screen below is displayed. Only the achiev ed Upstream and Downstream line rates and capacity values are shown. The pair P ASSED if the line rates were greater than or equal to the threshold rates and the capacity values were less than or equal to the threshold capacities.
79 Note: This screen is continuously updated in Continuous T est Mode. F AST : Achie ved line rate in kilobits per second on the Fast channel. INTR: Achie ved line rate in kilobits per second on the Interleav ed channel. No te: F AS T or I NTR wil l di spl ay w ith the a ch iev ed li ne r ate to in dic at e the sel ect ed c ha nne l ty pe.
80 DSLAM modem manufacturer information is displayed if av ailable, b ut this feature is not supported by all service types or manufacturers. The 965DSP displays ‘unkno wn’ in this f ield if the DSLAM manuf acturer information is unav ailable. FEC , CR C, an d HE C co unt s in e ach dir ect io n are al so d isp lay ed .
81 Note: This screen is continuously updated in Continuous T est Mode. LOS indicates a Loss of Signal alarm. This means that the ADSL receiv ed pilot tone po wer was 6dB or more below its reference power . Pilot tones do not carry data and are used for line synchronization.
82 The ADSL Graph presents a graphic display of the number of bits transmitted in each ADSL Discrete Multi T one (DMT) frequenc y bin. ADSL modems require wide bandwidth to operate since the y essentially use 256 separate simultaneous modems, each requiring about 4kHz of bandwidth called a bin.
83 Th e d at e a nd th e ti me di sp la y t he 96 5D SP “sy st em cl oc k. ” Se e t he “Se t C lo ck ” s ec ti on on pag e 1 2 f or fu rt he r i nf or ma ti on on se tt in g th e c lo ck , a nd al so for in fo rm at io n o n t he fo rm at of t he da te an d ti me .
84 Edit the T ech ID and Job Number using the same procedure described pre viously . Up to 14 alphanumeric characters can be entered in each f ield. Use the [T ab] ke y to jump between highlighted box es.
85 965DSP Modem Information Conditions af fecting the internal ADSL modem in the 965DSP are displayed via warning screens. In the unlikely case that the warning message sho wn abov e appears, simply exit the ADSL Modem application for a few minutes to allo w the modem to cool do wn.
86 Connection Lost Messages Err or con diti ons cau sing m odem li nk los s are dis play ed as ‘Co nnec tion : Lost ’ wi th nume ric co des and a bbre viat ed te xt def ini tion s. Common error codes and their causes are listed in the table below .
87 Numeric Code 0 x 41 0 x 50 0 x 51 0 x 53 0 x 54 Definition Signal Lost Frame Lost Margin Lost Cell Delineation Lost Me an in g Interruption in the path between the modems lasting at least 2.5 seconds Loss of ADSL framing lasting at least 2.5 seconds Required noise margin was lost for at least 2.
88 Press the [Setu p] k ey to choose a DSL se rvice. Use the [Up] and [Do wn] keys to highli ght the desir ed se rvice. Press [Ente r] to sele ct th e ser vice and return to the pre vious screen . DSL P arametric T ests (/SA option only) 965DSP models which include DSL Parametric T ests are identif ied by the /SA option on their W elcome screens.
89 DSL Loss (/SA option only ) Use this functi on to meas ure loss from the f ar- end to near -end using a tone between 20kH z and 1.2M Hz. Y ou mu st us e a separa te in strument to genera te th e tone at the far -end.
90 Spect rum An alyzer (/SA option only ) This funct ion provid es a graph ic di splay of the signa ls an d noi se on a line ov er a sele cted range of frequ encies. Conne ct th e red and black test lead s to the pair . Use the [U P] an d [DO WN] arro w keys to selec t the freq uency span of intere st.
91 Inter ferenc e F reque ncy Signature s Th e 96 5DS P Sp ect rum An aly ze r fun ct ion pro vi des a gr ap hic al d isp lay of th e si gna ls a nd n ois e on a lin e o ve r a se le cte d ra nge of fr equ en cie s. Th e sp ect rum ana lyz er c ont in uou sly ana lyz es t he li ne a nd up da tes the s cre en a s co ndi tio ns c han ge .
92 Prope r Ope ration The 965DSP Subs criber Loop Analyzer meas ures ex tremely lo w noise lev els and require s pro per handl ing of the test lead s to ensur e con sistent measu rements.
93 T DR This function shows the pair as a “trace” on the screen. TDR measures distance to ev ents based on input about the pair . Press the [Up] or [Do wn] keys to mov e to a desir ed selec tion. Press the [Enter] ke y to acc ept the ch oice and start the measur ement.
94 Conne ct th e red and black test lead s to the pair under test. Sing le T race is used to vi ew a single pair at a time. Dual T race Conne ct th e red and black test lead s to the pair under test. Conn ect the bl ue an d yel low test lead s to the refer ence pair .
95 Use the Crossta lk mo de to disp lay the am plitude and locat ion of sig nals that “cross” from one pair to the other , as co uld be cau sed by a split. Fo r bot h Dif ferentia l and Cros stalk, connec t the red and black test leads to the pair under test.
96 Memor y Conne ct th e red and black test lead s to the pair under test. Memory mode is used to co mpare a pa ir un der test to a st ored trace in memory . Th e f ir st sc re en in me mo ry mod e w il l s ho w a lis t o f th e I D n um be rs fo r al l s to re d TD R t ra ce s.
97 Y ou ma y mo ve the cursor by using the [Left] and [Righ t] k eys. The control settin gs fo r the store d tra ce can be vie wed by pre ssing the [T ab] or [En ter] key s b ut th e set tings cannot be changed . The TD R Mem ory function inclu des a Dif ference contr ol, accessibl e fro m the memo ry sc reen by press ing the [T ab ] k ey .
98 P eak Use the TDR Peak mode to capture e vents that may be intermittent. This mode continuously detects and displays the maximum and minimum traces that occur from the time that the mode is first selected. The ‘li ve’ trace is also displayed continuously .
99 Filter : is Out , is In Filter allo ws yo u to switc h in a filt er to remo ve noise . Y ou shoul d use the fi lter if you see nois e on the displa y .
100 Vp (V elo city of p ro paga tion ): 0.5 0 to 1.00 ( 75 t o 1 50 m/ uS ) Vp allo ws you to adjust the velocity factor (“propagation velocity”) of the pair or cable. Dif ferent cable types hav e dif ferent v alues of Vp. T o get the most accurate distance, Vp should be set to the exact value for the cable being tested.
101 The Stop distan ce ma y be dif feren t fro m the Leng th selec ted due to the scree n res olution. The Start and Stop distan ces are al so af fected by zoomi ng an d pan ning. P anning If you mov e th e cur sor to the righ t sid e of the screen , the screen will “pan ” or mo ve to the ri ght.
102 The nex t scr een show s the TDR trace after of fset. The ver tical of fset function af fects all modes e xcept Memor y . tha t is out of vi e wing ra nge or un til on e of the dis play con trol s is chan ged. Thi s is demo nstr ated be lo w . The f irst s cree n sho ws the TDR tr ace be fore v ert ical of fset .
103 TDR Sa ve Y ou c an s av e onl y th e ac ti v e “S ing le T ra ce” TD R sc ree n. F irs t, s ele ct t he TDR con tro l pa ram et ers so th e sc ree n ap pea rs a s de sir ed.
104 T he da te an d ti me di sp l ay ed is th e 96 5D SP “s y st em c lo ck . ” S ee th e “ S et Cl oc k” s ec ti on on p ag e 1 2 f or fu rt he r in fo rm at i on on se tt i ng th e c lo c k a nd fo r i nf or ma ti o n o n t he fo r ma t o f t he d at e a nd ti m e.
105 Edi t the T ec h ID and Jo b Numbe r usin g the sam e proc edur e descr ibed p re viou sly . Up to 14 alp hanu meri c char acte rs can be en tere d in each f ield . Use the [ T ab] ke y t o jump be twee n highl ight ed box es. Use th e [Set up] ke y t o clear b oth f ield s.
106 Conne ct th e tes t lea ds as indi cated on the le ft si de of the screen . See “T alk Set” on page 135 fo r mor e inf ormation on dialing numb ers. The “Dial Noise” and “Dial Longi tudinal Balan ce” screens are the same as sho wn abov e, exce pt fo r the scre en ti tles.
107 Loss Use this functi on to meas ure the lo ss fr om th e f ar- end to the near- end using a ton e bet ween 200 Hz and 20 kHz. Y ou must use a separate instrumen t to gener ate the to ne at the far-e nd. Pr ess the [T ab ] ke y to g o to N ois e. Pr ess the [Le ft] ar ro w ke y to go to Lon git ud ina l Ba lan ce.
108 The screen disp lays the loss in dB, and the freque ncy of the tone in ki lohertz. Press [Enter] to return to the dB menu. W ide band Loss Use this function to measure the loss of a f ar-end tone between 20 kHz and 1200 kHz. Y ou must use a separate instrument to generate the tone at the far-end.
109 Lev el Tr ace Use this function to measure and display the A C impedance of an inacti ve pair as a function of frequency . This test can be used to analyze a pair for loading and bridge tap problems. The result is displayed on a graph with relativ e impedance lev el displayed on the y-axis (in dB) and the frequency on the x-axis.
110 Inact ive P air A utotest (with out FED) The Inacti ve Pair screen displays the type of test (basic or full), the type of service (PO TS), the wire gauge, FED select status, and the cable type. Press the [Setu p] k ey to change the Inacti ve pair param eters.
111 Use the [T ab] key to select the cable type , tes t typ e, or wire gauge for editin g. Us e the [Up] and [Do wn] ke ys to hi ghlight the desire d cab le ty pe or wire gaug e. Pr ess [Enter] to accept the changes and retur n to the pre vious screen.
112 Activ e P air The Activ e Pair screen displays the Loss and Noise test line numbers. The test result v alues or pass/f ail status will be displ ayed for each test. Press the [Enter] ke y to repea t the test . Press the [T ab] key to vie w the te st v alues for all tests.
113 Use t he [Up] a nd [Do wn] ke ys to se lect L oss or Noi se/L ongi tudi nal Ba lanc e setup a nd pres s the [Se tup] k ey . The N oise /Lon gitu dina l Balan ce set up scre en is ide ntic al to the s cree n abo ve, e xce pt for th e head ing. Pre ss the [T ab] ke y to sel ect th e param eter t o edit.
114 Note: If th e P ow er In fluence measu rement result is greater than 70 dBrnC (-20d BmOp), then Noise Balan ce wi ll be disp layed. Otherw ise Longitudi nal Balan ce wi ll be disp layed. Press the [T ab] ke y to retu rn to the pass/ fail screen or [Ente r] to rete st.
115 A utotes ts wi th a FED The 965DSP will perform an Inactiv e or W ideband Autotest with a FED, FED II or SmartStrap ™ . From the Auto Menu screen, press the [T ab] k ey to go to the FED setup screen.
116 3M™ FED Connect ion Before proceeding with an Autotest the FED must be connected at one end of the pair under test. The 3M ™ FED and FED II support both Inacti ve (voiceband) and W ideband Autotests. Press the On/ Of f pushbutton twice on the 3M FED to transmit an ID tone on the Control pair .
117 Smart Strap™ Connec tion The CTC Smart Strap ™ Model C1100 supports Inacti ve P air testing only and requires a separate, good control pair . A W ideband Module Model C1110W is required for W ideband Autotest. At the far end of the cable, connect the Control P air (Pair 0) T and R terminals to the separate control pair in the cable.
118 Inactive P air A utotest (with a FED) The Inacti ve Pair scre en di splays the type of test (Basi c or Full) , the type of servic e (PO TS), the wire gaug e, th e FED type , and the cable type .
119 Inact ive setup with 3M FED selecte d If the CTC Smart Strap ™ has been selecte d for the FED, two addit ional test leads that are used to contr ol th e Sma rt St rap will be sho wn on the scree n. Inactive Setup (with FED) Press the [Setu p] k ey to change the Inacti ve pair param eters.
120 User shoul d mo ve leads to the second pair and press [Ente r] to cont inue test. Note: F or Inactiv e A utotest with the 3M™ FED II and P air 2 selected, the fol low ing screen will appea r dur ing the FE D II initiali zation proces s.
121 Inactiv e Pair - Ba sic T est - Pas s/F ail Screen Inact ive Pai r - Full T est - P ass/F ail Scr een The test result v alues or pass/f ail status will be displ ayed for each test. Press the [Enter] ke y to repea t the test . Pre ss th e [T ab] ke y to vi ew the test resul t v alues for all tests.
122 Inact ive Pai r - Basic T est - V alue Scr een Inact ive Pai r - Full T est - V alue Scre en Press the [T ab] ke y to retu rn to the pass/ fail screen or [Ente r] to rete st. T o view the graph of the voi ce-band sweep loss resu lts, press the [Do wn] key .
123 W ide band P air (with FED) Th e W ide ba nd T es t sc ree n d isp la ys t he typ e of tes t (B as ic o r Fu ll ), t he t yp e of ser vi ce ( 56 K B, 64 K B, IS DN , HD SL , T 1, E 1, AD SL) , t he w ire ga ug e, t he FE D t ype an d th e ca bl e ty pe .
124 W ideband Setup - FED W ideband Setup - FED II or Smar tStrap Use the [T ab] key to select the cable type , tes t typ e, wire gaug e, ty pe of serv ice, or lo ngitudin al ba lance termi nation (FED II or Sm artstrap ™ onl y). Use the [Up] and [Do wn] key s to highl ight the desired choic e.
125 H2/4A CC is a prequalif ication/acceptance test for HDSL2 or HDSL4 service. This service type selection in vokes a special set of sweep frequencies as well as E, F , and G weighted wideband noise measurements. HDSL2 and HDSL4 introduce the Loop Attenuation measurement per ANSI T1.
126 W ideband - Full T est W ideband - Basi c T est The W ideband - Full T est include s a resist iv e balance test (usin g spe cial resistan ce) that requires a dif ferent test lead conne ction. When this part of th e Autotest is reached , the user will be reques ted to sw ap the black and green test lead s or to skip this test.
127 Press [Ent er] to ret urn to the P ass/F ail screen or the [Do wn] ke y to disp lay the T ransmi ssion Data screen. Pr ess [En ter ] to ret urn to th e P ass /F ai l scr ee n, th e [U p] k ey to re tur n to the V OM Dat a scr ee n or t he [D o wn ] k ey to di spl ay t he W ide ba nd Sw ep t Los s sc ree n.
128 The 965DSP perf orms a sec ond test to det ermine if the user’ s cho ice of a FED II is cor rect. If a FED is found inst ead of a FED II, this screen will appear . Press [Ent er] to ret urn to Auto Menu screen. FED Initia lization Erro r Scr eens The 965DSP performs a test to determine if it can communicate with the FED.
129 If the initiali zation is successf ul, the W ideband resul ts sc reen will appear . Check the test lead hooku p for the 965DS P and the FED. Th e Autotest can be run with the FED conne cted directly to the 965DSP to determi ne if the cable hooku p is causi ng th e pro blem.
130 A utotes t Con figurati ons The follo wing tables list the tests perform ed fo r the Inact iv e Pair , Acti ve Pa ir an d W ideband T ests. T est Basic Full P as s/F ai l Vdc Y es Y es No Ohms Y es Y es Y es Opens Y es Y es No Long.
131 T est Basic Full P as s/F ai l Vdc Y es Y es No Ohms Y es Y es Y es Opens Y es Y es Y es Capaci tiv e Ba lance Y es Y es Y es Long. Balan ce Y es Y es Y es Sweep Loss No Y es Y es Single T one Los.
132 A utotes t Sav e Y ou can sa ve all of the results of an Autotest. After an Autotest has completed, press the [Save] key (camera icon) to sa ve the results. The 965DSP will display the Sav e Results screen as follo ws: The d ate and t ime dis play t he 965D SP “sy stem clo ck.
133 T o c ha ng e o r d e le te an y o f t h e c ha ra ct e rs th at ha ve be en en te re d, us e t he [Ri gh t] or [L ef t] ke y to mo ve th e c ur so r u nd er th e le tt er to be ch an ge d or de le te d. T o de le te th e c ha ra ct er , pr es s t he [D o wn ] k e y .
134 A utotest Resul ts Sc r een Symbol Def initions - DC V olts measure ment results - Ohms measurem ent results - Opens measure ment results - Longitud inal balance measu rement result - Load coil de.
135 T alk Set This funct ion allo ws yo u to use the 965DSP as a T alk Set on ac tiv e pairs or to sen d DTM F ton es on inact iv e pairs. Connect the red and black leads to the pair for lines using Loop Start. Also connect the green lead to ground on Ground Start lines.
136 Use the blue ke ys to chan ge th e num ber . Use the [T ab] key to highli ght a desi red menu. Use the [Up] and [Do wn] arro w k eys to mov e to a desire d telep hone number , se lect the dial mode (DTMF or Pulse ), an d the star t mod e (Lo op or Grou nd).
137 Car e and Ma intenanc e Battery P ack T he 96 5D SP u se s a Ni ck el Me ta l H y dr id e ( Ni M H) ba tt er y p ac k. T y p ic al li fe o f t he ba tt e ry pa ck is t wo ye ar s . T o c ha ng e t he b at te ry pa c k: 1) Lo os e n t he si x s c re ws on t he ba tt er y co mp ar tm e nt do or an d re mo v e t he do o r .
138 Batte ry Ho lder The plastic battery holder that comes with the 965DSP uses six “ AA” alkaline batteries (alkaline batteries are not included). Use alkaline batteries only when the NiMH battery pack is discharged and the A C adapter is not av ailable.
139 Repla cement Items Y ou m ay o rde r an y of the fol lo wi ng r epl ace me nt it ems fro m 3M . Con ta ct 3M Com mun ic ati on M ark et s Di vis io n Customer Servi ce at 800 426 8688 for more infor mation.
140 Symptom Cause Solution Unit does not turn on Discharged battery pack. Charge battery pack. NiMH battery pack old. Replace battery pack. Screen goes blank Battery voltage low . Charge battery pack. Dark lines across screen Battery voltage low . Charge battery pack.
141 Functi on Range Accuracy DC V oltage: 0 to 99.9 V 1% ± 0.5 V 100 to 300 V 3% A C V oltage: 0 to 99.9 V 1% ± 0.5 V 100 to 250 V 3% Current: 0 to 59.9 mA 1% ± 0.3 mA 60 to 110 mA 2% Resistance: 0 to 9999 Ω 1% ± 5 Ω (with CO voltage) 0 to 9999 Ω 1% ± 50 Ω 10 K to 99.
142 Functi on Range Accura cy Loss: -40 to +10 dBm 0.5 dB @600 Ω 200 to 3000 Hz 2 Hz 3 kHz to 10 kHz 10 Hz 10 kHz to 20 kHz 20 Hz Wideband Loss: -50 to +2 dBm 2 dB @135 Ω 20 kHz to 1200 kHz 1 % Nois.
143 Gener ally Accepte d Cri teria of Plain Old T elephon e Ser vice (PO TS) service (US and Canada) Param eter Acceptab le Mar ginal Unaccep table Current >23 20 to 23 <20 mA Loss <8.
144 t n e m e r u s a e M ) a d a n a C d n a S U ( e l b a C f o e p y T N I M y t i c a p a C e r o c r i A d e l l i f - y l l e J f n 5 3 . 9 t f 5 9 3 ) m 0 2 1 ( t f 0 5 3 ) m 7 0 1 ( X A M F u 1 1 0 . t f 0 5 4 ) m 7 3 1 ( t f 0 0 4 ) m 2 2 1 ( d e R o t k c a l B N I M f n 5 3 .
145 Ch ec k RF L per fo rm anc e: T o ve ri fy RF L, c onn ec t th e re d tes t le ad t o “R, ” the b lac k te st l ead to th e “B , ” th e gr een lea d to “ G, ” an d th e yel lo w lea d to “Y . ” Pr es s t he [R FL ] k e y o n th e 9 65 DS P .
Commun ication Marke ts Di vision 3M T eleco mmunicati ons 6801 Ri ver Place Blvd. Austin, T exas 7872 6-9000 800-426 -8688 www .3M.com/t elecom © 3M 2005 78-8130 -7429-7-F Important Notice All state.
デバイス3M 965DPSの購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
3M 965DPSをまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこには3M 965DPSの技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。3M 965DPSの取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。3M 965DPSで得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
3M 965DPSを既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又は3M 965DPSの不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、3M 965DPSに関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわち3M 965DPSデバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
