PCM-40 PCM Channel Analyzer PCS
Contents
1. ACO Ideal for installation line up commissioning fault localization and repairs Handy modern concept for field applications based on a lightweight analyzer module and IBM compatible PC or notebook Menu operation with color or monochrome VGA display Graphical presentation of all results with flexible zooming and scaling User definable variable test parameters automatic test sequences graphical tolerance masks Large memory for instrument settings and test results on PC hard disk Numerical and graphical result printout on PC printers with selectable conditions Complete digital and analog tests to ITU T Recs G 712 and 0 133 0 162 Complex impedances PCM30 and PCM31 frame structures including CRC error detection code Comprehensive codec frame and CAS measurement capabilities incl G 821 BERT High accuracy and reproducibility of test results Selective measurement capability with 30 Hz filter Monitoring of signalling status for all 30 VF channels CAS Loop MUX DEMUX and Drop amp Insert modes for analog and 64 kbit s interface Optional 64 kbit s interface with co and contradirectional clock to ITU T Rec G 703 for D amp I and BERT modes Control of PCS 40 Channel Selector ACTERNA The Keepers of Communications _ Drin i 1 LE pa mi dyin ihti The fall off in gain can be clearly seen The blue trace was recorded on commissioning the system the red trace at a later2. E E EEE ures 80 to 6 dBm0 ITU T G 821 evaluation 00 bit errors FAS errors Error results displayed as histograms Input Bit rate se sccicac Eraso eines EE TERE E ees ates 2048 kbit s Interface parameters 0 000 0000 to ITU T Rec G 703 Tie CO G2 sipar orenen E Daa ate dupa EAE ontees HDB3 or AMI Unbalanced input impedance 0 75 Qor gt 2 kQ CONMECIOR reperta ceca aes ENEN cient oeS ba Sind coaxial BNC Balanced input impedance 04 120 Q or gt 2 kQ COnDeEctOr seors ese unnin r TE TERETERE balanced 3pole CF NG Chess EAEE CEEE E ga T from received signal Pulling Tantei disor ee cates anana RSE na 100 x 1076 Measurement interval 60s to 72h Instrument set up memory depends on PC resources available Automatic measurement sequences Individual measurements linked tO A SEQUENCE 6s das ira aE deg ecauaes max number depends on PC resources available Result documentation Result output to external printer Output in table or graph formats Result output as ASCII file to disk Result in table format can be saved to disk with printout using DOS PRINT command Result storage and test configuration storage Depends on PC resources available Self test and level calibration Triggered automatically by opening the measurement menu Codec interface Handset interface Input output impedance 0 cee eee eee 600 Q OVMECION sas 5 046 ohne eae kok ood
3. ces ena ana eesb seemed 200 to 3600 Hz R solution cca sre Rete ends aeen eee EEEREN 4 Hz Level tange is posto tee onsin nnna REENE 60 to 1 dBm0 Levels yning nanira n iae same for both spectral lines Pseudo random noise signal to ITU T Rec 0 131 Sequence repetition rate period 0000 256 ms Bandwidth ys sisccesdie sec hog ni ninou Baek haw ea nan 350 to 550 Hz Peak factor serep irreais rinena EE IEEE eed howe e EES 10 5 dB Level tange sirro is tgdea Enni ety TENES EnS EEG 60 to 0 dBm0 Level increment nossa serres gions semgb da Heald E WERNEER ARA 0 1 dB MTTS Multi Tone Test Signal Frequency range 6 eee eee ras ass 200 to 3860 Hz Level Tange reses icecn aid tetanee vacated nek ans 30 to 0 dBm0 Tevel aenst epi eani earls vas same for all 37 spectral lines Output Impedance 2 eee ee eee 600 Q 900 Q and complex Return 1088 sss scicveracgretreanet waren oe gt 36 dB 200 to 4000 Hz Balance eeruan s are e nE gt 50 dB 200 to 3600 Hz Relative level increments 15 to 5 dBr 0 1 dB Max d c voltage 000 60 V between a b and ground CONNECIOL reser ers fae ea ONS ae Ka a balanced 3pole CF Auxiliary signal generator Sinewave signal FLEQUENGCY range verrerssto teruri kEm pes 200 to 3600 Hz Resolution srr awe Enen r ides Veh OTE eae es 4 Hz Level range increments 60 to 30 dBm0 0 1 dB Impedance ie pomerne aE pane nen CRS amare elo ve
4. eames EA we ore hae wes RJ11 64 kbit s interface optional Ouiput input sc ctsnscie cde ieencader ane to ITU T Rec G 703 Modes nun er ne wa a codirectional contradirectional Balanced Output six dice ange eae sled dave gee acs ne dace Bab a aha ESI 120 Q Connector se exes tees iar 5k ES eg Ras aaa balanced 3pole CF Clk OUtpUtis s rrarena a dec EEEE ET ERER 120 Q GONMECEONS Sass odie ised erat dus E a EA balanced 3pole CF General specifications Control computer for PCM 40 PC AT 486 WIN 3 1 WIN 95 98 NT min 600 kB free conventional memory min 256 kB free EMS memory min 40 MB free HD space VGA monitor color or monochrome serial or GPIB National Instr interface Communication interfaces for PCM 40 Serial I for computer control 0045 RS232C V 24 Serial II for modem connection 0 RS232C V 24 GPIB lt IEC 625 gt 8 5 IEEE 488 1 1978 for computer control Power supply External adapter with a c line cord AC supply ss ccc rarase ss ieee nessas 100 to 240 V 50 to 60 Hz Power consumption 0 ccc eee eee cece eee eee 25 VA Ambient temperature Nominal range of use 2 0 6 0 cece eee eee eee 5 to 45 C Limits range of use for 2 hours 0055 0 to 55 C Storage and transport range 0000 40 to 70 C Air humidity Nominal range of use 20 to 80 r h lt 20 g m absolute Dimensions 1x wxh 00000005 290 x 230 x
5. sce cava oes IEEE 488 connector General specifications Power supply External adapter with a c line cord AC supply 100 to 240 V 50 to 60 Hz Power consumption 005 10 VA One adapter can supply both the PCM 40 and PCS 40 Ambient temperature Nominal range of use 5 to 45 C Limits range of use for 2 hours 0 to 55 C Storage and transport range 40 to 70 C Air humidity Nominal range of use 20 to 80 r h lt 20 g m absolute Dimensions 1x wxh 290 x 230 x 70 mm Weight esis passasi niner aatioendes approx 2 kg Options 64 kbit s Interface EL 3039 01 for codirectional contradirectional clock for BERT and D amp I Impedance modification EL 3039 02 replaces complex impedance Accessories GH 1 DC Loop Holding Line Feeding BN 0984 00 12 Nylon Carrying Case EL 2237 01 for PCM 40 Notebook PC and accessories TPK 960 33 Transport Container BN 960 00 09 for PCM 40 PCS 40 Notebook PC and accessories 64 way female connector set for PCS 40 EL 3039 203 IEEE Interface cable for PCS 40 EL 3039 201 AC Adapter for PCS 40 EL 3039 202 Documentation Service manual for PCM PCS 40 in English EL 3039 83 Global Headquarters 20400 Observation Drive Germantown Maryland 20876 4023 USA Toll Free 1 800 638 2049 Tel 1 301 353 1550 Fax 1 301 444 8468 www acterna com Regional Sales Headquarters North America 20400 Observation D
6. 00 2048 kHz 50 x 107 or external clock 0 0000 2048 kHz 100 x 107 or clock derived from received signal Digital loops 2 Mbit s loop 6 0 e eee all time slots switched through 2 Mbit s loop one selected time slot generated internally remainder switched through 2 Mbit s loop 0 0 e eee all time slots switched through but channels shifted by 15 1 Complex impedance 220 Q in series with 820 Q in parallel with 115 nF other values on request Digital receiver PCM frame structure 0 0 0 cee eee to ITU T Rec G 704 see digital signal generator Encoding law 0005 to ITU T Rec G 711 A or pt law Filters Flat filter iced panre Sad econ 8 ceed hee GR 200 to 3600 Hz Psophometric filter 0 000 000 0008 to ITU T Rec 0 41 up to 3960 Hz Selective filter 00 cc cece eee eee between 200 and 3600 Hz center frequency can be set with 4 Hz increments bandwidth 30 Hz Filter for distortion measurement 850 to 3250 Hz or 1380 to 3240 Hz Notch filter at aux signal frequency bandwidth 30 Hz Alarm detection no signal frame loss multiframe loss AIS multiframe AIS remote alarm remote multiframe alarm Evaluation Bit error count event count recording of transients in digital words 4 FAS FAW MFW signalling channel telephone channel Telephone channel r m s value MEASUTEMENE e apara Ea E
7. 00 to 4000 Hz PCM 40 PCM Channel Analyzer Balance e ran araa EEE seas Peace we gt 50 dB 200 to 4000 Hz Max d c voltage 60 V between a b and ground CONNEC COR enerne nenne gna nies Ss Ea ORO balanced 3pole CF Digital signal generator PCM frame structure 0 00 eee eee to ITU T Rec G 704 32 channel PCM frame containing 30 telephone channels or 31 telephone channels 00 time slots 1 to 31 Encoding law 2 05 00 sscceceves enews ITU T Rec G 711 A or p law Sinewave signal Frequency range 2 cece eee ekas 200 to 3600 Hz Resolution s casare severe saws dae netni Anina EEES 4 Hz Brequency ACGUIACY oeo siase erai oei Ea a 50 x 10 Harmonic distortion 0 eee eee ee eee as per A or p law Level range increments 60 to 3 1 dBm0 0 1dB Dual tone signal Frequency range 26 eee cece ee eee 200 to 3600 Hz ResOlutiOH ac sa ipescawis cep omines sis res inin EUR EA 4 Hz Tevel Pani ges bic tonics Gis cesar a E setae 60 to 5 dBm0 Pseudo random noise signal to ITU T Rec 0 131 Sequence repetition rate period 000 256 ms Bam width ye 4 esis crsranstaceestcacgnsiatese arene EEE EEDA 350 to 550 Hz Peak factor i eevee ceed cape wecwee Oe Peewee sts wees 10 5 dB Level PanG ees sa cee amesetan 60 to 0 dBm0 0 1 dB MTTS Multi Tone Test Signal Frequency TANE sies s ras ceases eee eee 200 to 3860 Hz Level siiceu save ha
8. 70 mm Weight 0 5 csscigd sc satonde id EEn E de8 eed dees approx 3 5 kg Specifications PCS 40 PCM Channel Selector Test ports Ch x Maximum level 20 dBm Max d c voltage 60 V between a b and ground Max d c current 0000 100 mA Impedance case peines Erena aa 600 Q Insertion loss between test port and selected Tx Rx port 200 Hz to 4kHz lt 0 02 dB Connector 0005 balanced 3 pole CF Access ports Ch 1 to Ch 30 Balanced through switching of up to 30 VF channels in Tx and Rx directions Connector DIN 41612 type socket 64 way female Switching tiMe jc sccec ie crdgiencioes lt 10 ms Return loss measurement Built in bridge for return loss measurements on a selectable VF channel Measurement range 0 to 45 dB Frequency range 200 Hz to 4 kHz Accuracy 06 30 IB wists aca cuasitisemand aetna neae wats 1 dB 301045 dB rrna erneer eig ts 2 dB Reference impedance internal is 4c tei ava wisn eer AERAN 600 Q external connected to auxiliary MPU aise seo ed ead eee Wdee ace 600 to 900 Q Max input level 200 Hz to 300 Hz 00 6 dBm 300 Hz to 4kHz 0 000 0 dBm Longitudinal conversion loss LCL measurement Built in bridge for LCL measurements according to ITU T Rec 0 9 on a selectable VF channel Measurement range 5 to 56 dB Frequency range 200 Hz to 4 kHz Accuracy SO 46 1 Bs E E teret
9. PCM 40 PCM Channel Analyzer PCS 40 PCM Channel Selector For codec and line card tests on PCM multiplexers and digital exchanges Determining long term stability aging Communications systems and network ele ments are subjected to a wide variety of environmental influences which adversely affect component performance to a greater or lesser degree If the effect of such influ ences on say system gain are to be recorded the PCM 40 provides support for this appli cation During system line up the results and instrument configuration are stored so that they can easily be recalled In the sub sequent measurement these results are dis played within the tolerance mask and the new result trace is superimposed The instrument then determines the difference between the two measurements so that the deviation can be seen directly Status of connected test signal The PCM 40 continuously monitors the connected test signal during the measure ment and displays the result on the front panel and in detail on the screen This keeps you informed of the status and prevents in correct interpretation of the measurement results Storage of measurement configurations The test equipment settings required for routine or specialized manually performed measurements along with explanatory comments can simply be stored by the PCM 40 The number of setups which can be stored is limited only by the system resources of the computer you are using
10. date The DIFF RESLT function determines the difference between the two traces The zoom function and cursors allow every detail to be examined A test configuration setup includes all test and interface parameters required to perform a measurement The setup name is used to relate the setup to a particular device under test Automatic test sequences You can produce automatic test sequences by combining several test configurations together from the range of setups which you have stored All of the measurement functions included in the PCM 40 along with any variations in test variables parameters and tolerance limits can be used for this in any order required The sequence can be programmed to stop if an incorrect result is obtained or before each dif ferent measurement task Monitoring digital paths in through mode or via high impedance taps For long term monitoring of 2 Mbit s paths the circuit can be looped through the PCM 40 transparently or tapped via a high impedance monitor point If the power supply fails during loop through measurements the signal path is not interrupted The following measurements can be performed Frame monitoring with FAS errors recorded as histo grams Level frequency and coder level monitoring including audio monitoring in a selected channel Recording of byte changes in the selected frame or data channel Signaling status display for individual channels Quality
11. e Transhybrid loss nanne Frequency Time Received level Channe Peak code Coder offset Total distortion Level amp Channel Tone Noise Weighted noise Time Far end crosstalk Channe Level Near end crosstalk Channe Level Group delay Distortion Frequency MTTS Dual tone intermodulation Channel Level Return loss Channel Frequency Frequency amp Channel Longitudinal balance Channel Frequency Frequency amp Channel Frame Monitor O 162 G 821 Time FAS Channel Word test Event counter BERT G 821 Channel associated signaling status Signaling distortion Drop amp Insert A 600 900 Q or complex 4 wire or 2 wire analog interface e indicates available test configurations 1 with external 2 wire termination D 2048 kbit s digital interface to ITU T Recs G 703 G 704 available only with PCS 40 T 64 kbit s digital interface to ITU T Rec G 703 optional Specifications Analog signal generator Sinewave signal Frequency range 6 cece cece eee ees 200 to 3600 Hz RESOMUHON ss snc eee aeesawe aa EEEE KEERN ANANS 4Hz Frequency accuracy 6 cece eee eee 50 x 107 Harmonic distortion 000 8 gt 56 dB at 0 dBm0 Level Tange iio crease ees dete awaniene ete bale su 60 to 5 dBm0 Level increments os sci dcscis nes aeetae wets sesne cranes 0 1 dB Dual tone signal Frequency rang i ciiae
12. e 600 Q GOTTECEOL es oii aeea Sec avo bed Sk EEES balanced 3pole CF Output Impedance sisie sist iriiria EERE ssn acne ier 600 Q Return 1088 spes cis eek ee ees gt 36 dB 300 to 3600 Hz Balances ive sreses suncunes pcseweee neces gt 46 dB 200 to 3600 Hz Max d c voltage 000 60 V between a b and ground CONECTO es es eraan resend a TEE IEEE Gian balanced 3pole CF Analog receiver Filters Plat fter enrarir ae EE escent nat ons 200 to 3600 Hz Psophometric filter 00008 to ITU T Rec 0 41 Selective filtet pecura ccnaesescca vans between 200 and 3600 Hz center frequency settable in 4 Hz increments bandwidth 30 Hz Filter for distortion measurement 850 to 3250 Hz or 1380 to 3240 Hz Notch filter at aux signal frequency bandwidth 30 Hz Level measuring range minimum Signal level rerne poa era aR ETE eud eaten a 60 to 8 dBm0 RESOLUTION Sic isi cig auarsrie raene aa asec ea Raboloag alienate ae 0 01 dB Noise Crosstalk sc tas ed acscavds ogra he nue ea meraleea dike 80 to 0 dBm0 Resolution 34 ihdiceaiiagd pitas E satan ead bead Maes 0 01 dB Relative level range increments 15 to 5 dBr 0 1 dB Group delay distortion 00 cece eee eee eee 0 to 10 ms Resolution siarc es sitichwavease ess ETONE NETE EN ds eau 0 1 ms Input Impedance 600 Q 900 Q gt 30 kQ and complex Return loss sessi ers sod one e35 tiid gt 36 dB 2
13. e ate 1 dB 46 to 56 dBase aaas sasat eanes sni 2 dB Terminating impedance 600 Q Max input level 4 6 dBm Ordering information PCM 40 Channel Analyzer EL 3039 01 Including AC adapter RS232C V 24 cable and operation manual in English A separate PC is required for operation Calibration report for PCM 40 EL 3039 60 PCS 40 Channel Selector Including return loss and longitudinal conversion loss LCL measuring bridge DC current loop and DC feeding bridge cables for interconnection of PCM 40 and PCS 40 64 way female connector set for accessing PCM MUX and operation manual in English EL 3039 20 T eano 572 02 DC current loop Two built in current loops connected to each test port DC current 0 c cece eee eee lt 150 mA Voltage drop at 20 mA WOO MA ses vkce as eave weed lt 5 5V lt 12V Output impedance 200 Hz to 4kHz approx 30 kQ DC feeding bridge Two built in current loops connected to each test port Supply voltage It 0 approx 30 V Supply current Rt 400 Q gt 20 mA Supply current Rt 0Q approx 38 mA Output impedance 200 Hz to 4kHz approx 50 kQ LCL 200 Hz to 4kHz gt 45 dB Line status indication TX and RX Line feeding voltage on Line looped Remote control Control of all functions from PCM 40 Channel Analyzer or personal computer via GPIB IEC625 IEEE488 interface Interface
14. monitoring in an idle channel Facilities for monitoring the quality of PCM systems which do not use CRC frames are limited to monitoring the frame alignment signals The PCM 40 can however perform a loop back or end to end measurement to ITU T G 821 in an idle channel The instrument transmits a test pattern which it then evaluates The results can be shown as a table or as an error histogram Errors in the idle channel shown with their times of occurrence Sporadic faults can thus be easily seen and matched in time to possible sources of interference PCM 40 as an automated measuring system When testing PCM multiplexers the PCS 40 Channel Selector connects up to 30 analog TX and RX channels sequentially to the PCM 40 analog test ports The PCS 40 Channel Selector allows return loss and longitudinal conversion loss measurements on individual VF channels using the built in bridges Also test needing D C loop holding circuit or feeding bridge are possible The result is a flexible and powerful test system well suited to production installation and maintenance of 2 Mbit s multiplexers Automatic sequential connection of up to 30 analog Tx and Rx ports of a PCM MUX equipment to the PCM 40 Channel Analyzer 30 channel automatic sequential weighted noise measurement Test modes and configurations Test modes Variable parameters Test configuration Gain or loss Channel Frequency Tone MTTS Level Tone Nopise Tim
15. ns erinran iruan same for all 37 spectral lines Level range increments 4 30 to 0 dBm0 0 1 dB Group delay measuring signal 0 0 c cece MTTS Test patterns 0 0 0 0 eee PRBS6 PRBS9 PRBS11 PRBS15 Insertion AN as cosdiscs s ate aden ees tense a voice channels 1 to 30 Freely selectable n x 8 bit word sequence n 1 to 60 Insertion in FAS FAW MFW channel signalling channel REPGHtONS coh sic Sco sad eE nena steelers 1 to 9999 or continuous Freely selectable FAS sequence n x7 bits n 1 to 60 Freely selectable MFAS sequence n x 4 bits n 1 to 60 Error insertion 0000 eee eeeee FAS MFAS MEW channel signalling channel Error Tati sci iad andows uniano 5x 107 to 5 x 10 7 Digital milliwatt signal 000 to ITU T rec G 711 Output BitTate ccs cepacenierad sores enaw notes eresannannte 2048 kbit s Interface parameters s essesesrassrricssess to ITU T rec G 703 Vane cod s cestami os ed oes Caw Toroi anisa HDB3 or AMI Unbalanced impedance 0 eee eee eee 75Q Connector crederete tan EREDE EEN NEEE RIDEES coaxial BNC Balanced impedance ssccii eis valence es TEn eaRc aaa ee lt 120 Q Connector sses arenes betes EREDE balanced 3pole CF Operating mode Loop through 2 Mbit s Test pattern insertion into one time slot Analysis of one time slot Generator operation from internal clock 0 00
16. rive Germantown Maryland 20876 4023 USA Toll Free 1 800 638 2049 Tel 1 301 353 1550 Fax 1 301 444 8468 Latin America Av Eng Luis Carlos Berrini 936 8 9 Andar 04571 000 S o Paulo SP Brazil Tel 55 11 5503 3800 Fax 55 11 5505 1598 Asia Pacific 42 Clarendon Street PO Box 141 South Melbourne Victoria 3205 Australia Tel 61 3 9690 6700 Fax 61 3 9690 6750 Western Europe Arbachtalstrasse 6 72800 Eningen u A Germany Tel 49 7121 86 2222 Fax 49 7121 86 1222 East Europe Middle East amp Africa Elisabethstrasse 36 PO Box 13 2500 Baden Austria Tel 43 2252 855210 Fax 43 2252 80727 CIS Countries 1 Neopalimovskiy Per 15 7 4 floor 119121 Moscow Russia Tel 7 095 248 2508 Fax 7 095 248 4189 Subject to change without notice CO EN D146 0401 AE rep D044 Printed in Germany Copyright 2001 Acterna LLC All rights reserved Acterna is present in more than 80 countries To find your local sales office goto www acterna com ACO ACTERNA Complementary Operations Arbachtalstrasse 6 Germany Tel 49 7121 86 1364 Fax 49 7121 86 1103 e mail klaus zietkowski acterna com ACTERNA The Keepers of Communications
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