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ADTRAN DSU 56 - page 1
DSU 56/64 Data Serv ice Unit User Manual P art N umber 1200062L1 61200062L 1-1E May 2001 ...
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ADTRAN DSU 56 - page 2
901 Ex plore r Boulevar d P .O. B ox 140000 Huntsv ille, AL 35814 -4000 (256 ) 963-800 0 © 2001 ADTRAN, Inc. All Ri ghts Res erved. Printed in U.S.A. ...
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ADTRAN DSU 56 - page 3
iii The following conventions are used in this manual. Important Sa fety Instructions When usin g your telephon e equipment, plea se follow these bas ic safety p recau tions to red uce the risk of fire, electrical shock, o r personal injury: 1. Do not use this product nea r wate r , such as nea r a bathtu b, was h bo wl, kitchen sink, laundry tub, ...
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ADTRAN DSU 56 - page 4
iv Affida vit Requirements f or Connection to Digital Services • An af fidavit is requir ed to be given to the telephone company whenever digital terminal equipmen t without encoded analog content and bill ing protection is used to transmit digit al sign als contai ning en coded analog conten t which a re intended for eventual conversion into voi ...
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ADTRAN DSU 56 - page 5
v Affidavi t f or Connection of Customer Premises Equipment to 1.544 MBPS and/ or Subrate Digital Services For the w ork to be perf ormed in the cert ified terr itory of _________ _____ (telco name) Stat e of __ _________ ________ _________ ____ County of ________ ______ ___ ______ __ _____ I, ______ _________ ________ (name ), _______ _________ __ ...
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ADTRAN DSU 56 - page 6
vi ( ) D. In lieu of the proceeding training r equirements, the operator(s)/maintainer(s ) is (ar e) under t he contr ol of a supervisor trained in accor dance with _____ _________ _ (cir cle one) above. I agr ee to provi de _______ _________ ____ (te lco’s name) w ith pr oper document ation to demonstrate complia nce with the information in the ...
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ADTRAN DSU 56 - page 7
vii FCC r egulations r equir e that the following in formation be p r ovided in thi s manual: 1. This equipment complies w ith Part 68 of the FCC rules. On the bottom of the equipment housing is a label that shows the FCC registration number and Ringer Equivalence Number (R EN) for t his equipment , if applicable. If requir ed, this information m u ...
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ADTRAN DSU 56 - page 8
viii Federal Communications Commission Radio Frequency Interference Statement This equipment has been tested and found to comply with the limits for a Class A dig- ital device, pursuant to Part 15 of the FC C Rules. These limits are designed to provide reas onable protection against harmful interfer ence when the equipment is operated in a commer c ...
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ADTRAN DSU 56 - page 9
ix Canadian Equipment Limitations Notice: The Canadian Indus try and Science Canada label identifies certified equip- ment. This certif ication mean s that the equipment meets certain tele communic ations network protective, operational, and safety requir ements. The Department does not guarantee the equipme nt will operate to the use r’s satisfa ...
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ADTRAN DSU 56 - page 10
x Limited Pr oduct W arranty ADTRAN warrants th at for five (5) years f rom the date o f shipment to Customer , all products manufactur ed by ADTRAN will be fr ee fr om defects in materia ls and work- manship . ADTRAN also warrants tha t products will co nform to the applicabl e speci- ficat ions and drawin gs for suc h products , as contai ned in ...
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ADTRAN DSU 56 - page 11
xi Customer Service, Produ ct Support Information, and T ra inin g ADTRAN will replace o r repair this product within five years from the date of ship- ment if the product do es not meet its publis hed specification, or if it fai ls while in ser- vice. A return material au thorization (RMA) is required prior to ret urning equipment to ADTRAN. For s ...
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ADTRAN DSU 56 - page 12
xii Identify the RMA number clearly on the package (below address), and return to the fol- lowing a ddress: ADTRAN Custom er and Product S ervice 901 Explo rer Blvd. Hunt sv i lle, Al abama 35806 RMA # ________ _____ Trai ni ng The Ente rp ris e N etw or k (EN) Te chni c al Tra ini ng Dep art me nt of fers training on our most popular pro ducts. Th ...
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ADTRAN DSU 56 - page 13
61200062L1-1 DSU 56/64 User Manual xiii T ab le of Contents List of Figures ............. ........... ................. ................. ................. ................. ................. .. ....... xv List of Tabl es ............... ........... ................. ................. ................. ................. ................. . ...... x ...
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ADTRAN DSU 56 - page 14
Table of Contents xiv DSU 56/64 User Manual 61200062L1-1 Carrier Detect (CD) - SE 4 ............... ................. ................. ................. .................. 2-3 Down - Normal .............. ..... ...... ..... ................. ............ ..... ...... ...... ................. . 2-3 Up - On ...................... ................. . ...
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ADTRAN DSU 56 - page 15
61200062L1-1 DSU 56/64 User Manual xv List of Figures Figure 1- 1. DSU 56/64 Unit .................. ................. ........... ................. ................. .............. 1-2 Figure 1- 2. DSU 56/64 Rear Panel ............ ................. ................. ................. .................... 1-4 Figure 3- 1. DTE Only T est Diagr am . ...
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ADTRAN DSU 56 - page 16
List of Figures xvi DSU 56/64 User Manual 61200062L1-1 ...
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ADTRAN DSU 56 - page 17
61200062L1-1 DSU 56/64 User Manual xvii List of T ab les Table 2-1. Default Option Switch Settings ......... ................. ................. ................. ........ 2-5 Table A-1. Pinouts for RJ-4 8S Network Connections .............. ................. ................. .. A-1 Table A-2. V.35 DTE Pinouts .......... ................. ........ ...
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List of Tables xviii DSU 56/64 User Manual 61200062L1-1 ...
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ADTRAN DSU 56 - page 19
61200062L1-1 DSU 56/64 User Manual 1-1 Chapter 1 Introduction PR ODU CT OVERVIE W The ADTRAN D SU 56/64, sh own in Figur e 1-1 on page 1- 2 , is a technologicall y advanced, h igh performance D ata Service/Ch annel Service Unit (DSU /CSU) that pr ovides the interface between telco provided Di gital Data Service (DDS) and th e customer ’s Data T e ...
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ADTRAN DSU 56 - page 20
Chapter 1. Introduction 1-2 DSU 56/64 User Manual 61200062L1-1 FRONT P ANEL As s hown in Figure 1-1, t he front pa nel of th e DS U 56/64 co ntain s eleven light emitting di ode (LED) indicators that di splay DTE interface, networ k, and test sta tus. These indicators are de fined in the LED Identification sectio n, below . Figure 1-1. DSU 56/64 Un ...
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ADTRAN DSU 56 - page 21
Chapter 1. Introduction 61200062L1-1 DSU 56/64 User Manual 1-3 T est Stat us/Er ro r (Y ellow/Red) T ests defined by the above indicators are explained in greater detail in Chapter 3, Te s t M o d e s on page 3 -1. T est Sw itches The front panel also contains two push-button s witches for selecting and controlling the vario us test mode s for the ...
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ADTRAN DSU 56 - page 22
Chapter 1. Introduction 1-4 DSU 56/64 User Manual 61200062L1-1 REAR P ANEL The r ear panel of the DSU 56/6 4 is sh own in Figur e 1-2. P RIMARY V.35 , a thirty-four pin connector , provides the synchronous DT E int e rfa ce . The eight-pi n modular jack (RJ-48S) labeled T ELCO connects the DSU 56/ 64 to t he DDS n etwork. For pinouts to these conne ...
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ADTRAN DSU 56 - page 23
61200062L1-1 DSU 56/64 User Manual 2-1 Chapter 2 Installation UNPAC K, INSPECT, P OWER UP Car efu l ly in s pect the DSU 56/64 fo r any shippi ng dam ages. If damage is suspecte d, fi le a claim immediately with the ca rrier and then conta ct ADTRAN Custo mer and Pr oduct Servic e (CAPS). If possible, keep the o r iginal shipping contai ner for use ...
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ADTRAN DSU 56 - page 24
Chapter 2. Installation 2-2 DSU 56/64 User Manual 61200062L1-1 Po w e r U p The DSU 56/64 is equipped with a captive six-foot power cord that is terminated with a three-prong plug for connecting to a grounded power receptacle. CONFIGURATION The DSU 56/64 has eight options for contr olling the o peration of both the network and DTE interfaces. These ...
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ADTRAN DSU 56 - page 25
Chapter 2. I nstallation 61200062L1-1 DSU 56/64 User Manual 2-3 Antistream - S W 3 The Antistream option is used to select the antis tr eam time ou t. The antistream time out is the maximum time the D SU 56/64 is allo wed to transmit data from the DT E into the netw ork. This feature prevents one DTE device on a multi-drop network from continuou sl ...
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ADTRAN DSU 56 - page 26
Chapter 2. Installation 2-4 DSU 56/64 User Manual 61200062L1-1 Remote Digital Loopbac k (RDL) - SW 6 Down - Enable The DSU 56/6 4 accepts the industry standa rd V .54 R DL command fro m the far end of the cir cu it. Up - Disable The DSU 56 /64 does not r espond to the V .54 loopback comm and fro m the far end of the cir cu it. Loop Rate - SW 7 Down ...
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ADTRAN DSU 56 - page 27
Chapter 2. I nstallation 61200062L1-1 DSU 56/64 User Manual 2-5 NET W ORK CONNEC TIO NS This interface cons ists of four leads tha t are paired to provide separate transmit and rec eive circuits. The four leads a re pr ovided on the eight-positi on modul ar jack DSU RJ-48S labeled T ELCO on the rear panel of the DSU 56/64. The pinouts for this conn ...
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ADTRAN DSU 56 - page 28
Chapter 2. Installation 2-6 DSU 56/64 User Manual 61200062L1-1 ...
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ADTRAN DSU 56 - page 29
61200062L1-1 DSU 56/64 User Manual 3-1 Chapter 3 T est Modes In addition to a self-test mode, the DSU 56/ 64 has other extensive test modes which are designed to help is olate problems to specifi c components of the communications circuit. These various t est modes for the D SU 56/64 are initiated and terminated fro m the front panel using t he S E ...
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ADTRAN DSU 56 - page 30
Chapter 3. Test Modes 3-2 DSU 56/64 User Manual 61200062L1-1 If an E PROM C HECKSUM failure is detected during self test, CS , ALM , PTRN , and E RROR indica tors al l flash a t the end of the self test. NEAR END T ESTS The local DSU 56/64 can perform the following near end test s: •D T E O n l y • DTE with T est Pattern • DTE and LOOP ( LL) ...
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ADTRAN DSU 56 - page 31
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-3 T o initiat e t he DTE O NL Y tes t, perform the follow ing steps: 1. Press S ELECT on ce to turn on the DTE test in dicator . 2. Press T EST w hile the test indicator is o n. 3. T o terminate the test, press T EST . T est data from th e terminal or tes t equipmen t is routed through the ...
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ADTRAN DSU 56 - page 32
Chapter 3. Test Modes 3-4 DSU 56/64 User Manual 61200062L1-1 Figure 3-2. DTE with T P Test Diagram The in terna l test pa ttern gener ator an d detec tor of the DSU 56/64 operate with a 2047 data pattern. When this test is initiated, the test pattern detector examines the rece ive data stream until synchronization to the 2047 p attern occurs. Once ...
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ADTRAN DSU 56 - page 33
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-5 56/64 from the remote site over the actual commu nications circuit. T esting from t he remote end of th e circuit is performed with test data generated by the remote DSU or terminal type test equipm ent. The DTE AND L OOP test splits the DSU 56/6 4 into separate DTE and Loop interface se ...
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ADTRAN DSU 56 - page 34
Chapter 3. Test Modes 3-6 DSU 56/64 User Manual 61200062L1-1 LOOP ON LY T EST (RT) The L OOP O NLY test or R EMO TE L OOPBACK test (RT) is used to t est the loop interface and a major portion of the DTE interface of the local DSU 56/64 from the remote site over the actua l digital data circuit. For the L OOP O NLY test, the network receive data is ...
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ADTRAN DSU 56 - page 35
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-7 F AR END T ESTS Remote Digital Wh en th e RDL test is i nitiated at th e local DSU 56/ 64, it comman ds the remote DSU into loopback with the industry standard V .54 loopback pattern. The lo opback point and the sign al paths for the remote D SU are the s ame as the L OOP O NL Y test for ...
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ADTRAN DSU 56 - page 36
Chapter 3. Test Modes 3-8 DSU 56/64 User Manual 61200062L1-1 T est P attern (PTRN) When the PTRN test is initi ated, the local DSU 56/64 uses the integral test pattern gen erator to transmit a standard 2047 test pattern to the DSU o n the far end of the cir cuit. The local DSU 56/ 64 th en exam in es the receiv e d d ata fo r t h e stand ard 2047 p ...
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ADTRAN DSU 56 - page 37
Chapter 3. Te st Modes 61200062L1-1 DSU 56/64 User Manual 3-9 REMOTE T ESTS The DSU 56/64 responds to three remotely activated tests. • Remot e Digital Loopback ( RDL) •C S U L o o p b a c k ( L L ) • DSU Loopback (R T) The RDL test is initiated by a remote DSU and causes the local DSU 56/64 to loopba ck. The loopback point is the sa me as th ...
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ADTRAN DSU 56 - page 38
Chapter 3. Test Modes 3-10 DSU 56/64 User Manual 61200062L1-1 ...
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ADTRAN DSU 56 - page 39
61200062L1-1 DSU 56/64 User Manual A-1 Append ix A Pinouts T able A-1. Pinouts for RJ-48S Network Connections Pin Number Function Signal Direction 1 Transmit Data (R) From Custome r to Network Interface 2 Transmit Data (T) From C ustomer to Network I nterface 3-6 Not Used N/A 7 Receive Data (T-1) From N etwork Interface t o Custom er 8 Receive Data ...
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ADTRAN DSU 56 - page 40
Appendix A. Pinouts A-2 DSU 56/64 User Manual 61200062L1-1 T able A-2. V .35 DTE Pinouts Pin CC ITT Descri ption A 101 Protect ive Ground B 102 Signal G round (SG ) C 105 Request to Send (RS) D 106 Clea r to Send E 107 Data Set Ready (SR) F 109 Receive Lin e Signal Dete ct or (C D) R 104 Received Data (RD-A) T 104 Received Data (RD-B) V 115 Receive ...
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ADTRAN DSU 56 - page 41
61200062L1-1 DSU 56/64 User Manual B-1 Append ix B Specifications SPECIFICATIONS AND FEATURES The DSU 56 /64 is a singl e stand-al one unit d esigned to be used either on a desktop or mounted o n a wall. This section describes the standard specification s and features incorporat ed in the D SU 56/64. Loop Interfac e • 4-wire, full duplex Line Req ...
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ADTRAN DSU 56 - page 42
Appendix B. Specif ications B-2 DSU 56/64 User Manual 61200062L1-1 Diagnostics Network test cente r activa ted: • CSU loopback on sea ling current r eversal in local loop • DSU loopback User act ivate d: • S e l f t e s t , • Local lo opback, • V .54 activated remote loopba ck with 2047 t est pattern • DTE d ata/data from exte rnal tes ...
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ADTRAN DSU 56 - page 43
61202062L1-1 DSU 56/64 User Manual Inde x-1 Inde x A ACES help desk, xi affidav it connecti on for di gital se rvices, iv connec tion of CPE e qui p m ent, v antistrea m - SW-1, 2-3 Applic ation s engineer ing how to contac t, xi C cab les inclu ded wit h ship ment, 2-1 provided by customer, 2-1 Canadian emissions requiremen ts , viii Canadian equi ...
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ADTRAN DSU 56 - page 44
Index Inde x-2 DSU 56/64 User Manual 61202062L1-1 remote test s 3-9 repair an d retur n informatio n, xi RJ-48S net work connections, pinouts, A- 1 RMA requ ests xi S safety in st ructio ns, iii scramble r - SW-8, 2-4 self-tes t mode 3-1 service type info rmatio n vi i shipping damage what to do 2-1 shipping package conten ts of, 2-1 speci ficat io ...
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