ADTRAN Network Router DSU 56 User's Manual
Contents
1. The DSU 56 64 supports both 56 kbps and 64 kbps loop service rates with the DTE interface rate matching the selected loop rate A synchronous V 35 interface is provided for the DTE interface All setup or configuration is accomplished with a single eight position DIP switch that is accessible from the back panel of the unit 61200062L1 1 DSU 56 64 User Manual 1 1 Chapter 1 Introduction FRONT PANEL As shown in Figure 1 1 the front panel of the DSU 56 64 contains eleven light emitting diode LED indicators that display DTE interface network and test status These indicators are defined in the LED Identification section below ADRAN DSU 56 64 TEST RS cS TD AD CD AM otE LOOP RDL PTRN ERROR SELECT TEST LED Identification Figure 1 1 DSU 56 64 Unit DTE Status Green Indicator Definition Source RS Request To Send DTE CS Clear To Send DSU TD Transmit Data DTE RD Receive Data DSU CD Carrier Detect DSU NOTE The active state for the status indicators RS CS and CD is On while the on state for the data indicators TD and RD represents a Space con dition Network Status Red ALM ON indicates a problem on the local loop or within the DDS network Orr indicates normal loop and network conditions DSU 56 64 User Manual 61200062L1 1 Test Switches 61200062L1 1 Chapter 1 Introduction Test2. 3 TO Wi O i AAEE E A asec concen rosie la E ETE 2 3 Wp On E EE EE 2 3 61200062L1 1 DSU 56 64 User Manual xiii Table of Contents Carrier Detect CD SE F iie e E ep ete E pe depen 2 3 Bowrn Normal onys ace xit Rb eterne dis es Soka teo uae 2 3 UD OR folk ats 2 3 Data Set Ready SR SW 5 55 eoe Ret een e abs shies s 2 3 Down On ass 2 3 Up Normal sco icons Costin tects 2 3 Remote Digital Loopback RDL SW 6 sess 2 4 Down Enable A A Neve te eec eere pe EAE PEE 2 4 Up Disable eio reete re ene E e dee gate 2 4 Loop Rate A PI nitet Ten Hage seed toga reet oe CL 2 4 Down DO IND PS oria ee ir e eet est A oct dt cot inet 2 4 Up GUKDOS AAA e read 2 4 Serambler e SW 8 ct it A eee eve ve oe iii 2 4 DOWN On zie a e e acido 2 4 UP OEE temet eed tae ett aM ote s et tate S Ui cA 2 4 NetWork Connections tl 2 5 DTE Connections siens re ete eee ei ete eate E id deen R E canton Mish tee he 2 5 Chapter 3 Test Modes Self TeSt oea ioe A AAA AAA Aa 3 1 Near End TEE eerren a e e E RERET OENES ETO 3 2 DTE Only estais ata A ninia 3 2 DEE with Test Pattern TP re der ar Tess 3 3 DIE and Loop Test LE narre i a eere rente ends 3 4 Loop Only Fest RD conti tn 3 6 Far End Testi da td dins 3 7 RemotexDieital m cede ese r e ste ett ede decem tret de teens 3 7 RDC with Test Pattern TP scsi ettet tentent ene rea enters 3 7 Test Pattern ETRIN iet reete i de gie Pre nem
3. DSU 56 64 User Manual 1 3 Chapter 1 Introduction REAR PANEL The rear panel of the DSU 56 64 is shown in Figure 1 2 PRIMARY V 35 a thirty four pin connector provides the synchronous DTE interface The eight pin modular jack RJ 48S labeled TELCO connects the DSU 56 64 to the DDS network For pinouts to these connectors see Table A 1 Pinouts for RJ 485 Network Connections on page A 1 and Table A 2 V 35 DTE Pinouts on page A 2 EE AA PRIMARY V 35 TELCO OPTIONS LISTED ON BOTTOM 00000000 o OOOOOOOO OOOOOOOOO 00000000 Figure 1 2 DSU 56 64 Rear Panel All setup or configuration parameters for the DSU 56 64 are selected with an eight position DIP switch This switch labeled OPTIONS is accessible from the rear panel The label also references the options chart located on the bottom of the unit The individual options are explained in detail in Chapter 2 in the section Configuration on page 2 2 The power cord on the rear panel of the DSU 56 64 is mechanically secured to the back panel and provides the connections to the integral AC DC power supply DSU 56 64 User Manual 61200062L1 1 Chapter2 Installation UNPACK INSPECT POWER UP Carefully inspect the DSU 56 64 for any shipping damages If damage is suspected file a claim immedia
4. Status Error Yellow Red DTE ON SOLID indicates DTE interface test in progress FLASHING indicates Loop Interface test CSU Loop back has been initiated by telco Loop ON SOLID indicates loop interface test has been initiat ed from local DSU FLASHING indicates loop interface test CSU or DSU Loopback has been initiated by telco RDL ON SOLID indicates remote digital loopback test has been initiated from the local DSU FLASHING indicates remote digital loopback test has been initiated from the remote DSU PTRN Error ON SOLID indicates that integral pattern generator is being utilized for testing ON indicates that errors are being detected during a test or that a test can not be properly initiated Tests defined by the above indicators are explained in greater detail in Chapter 3 Test Modes on page 3 1 The front panel also contains two push button switches for selecting and controlling the various test modes for the DSU 56 64 The descriptions of these switches are as follows Select Each time this switch is activated a valid test mode is in dicated by one or more LEDs being turned on solid Pressing the SELECT button from within an active test in jects a bit error Test Once the desired test mode is displayed on the test sta tus indicators the test is initiated by activating this switch Pressing the TEST button again will terminate any test in progress
5. from the remote end of the circuit is performed with test data generated by the remote DSU or terminal type test equipment The DTE AND LOOP test splits the DSU 56 64 into separate DTE and Loop interface sections and then loops the transmit data of each interface back to its respective receive data Figure 3 3 illustrates the loopback points and the signal paths for this test The DTE AND Loop LEDs flash during initialization of the test and turn on solid once the test is in progress 56 64 DSU DTE or Test Network Equipment DTE Loop Interface Interface Transmit Transmit Interface Interface Loop TX o Y podr gt RD 1 lt Loop RX Receive Receive Interface Interface Figure 3 3 DTE and Loop Test Diagram To initiate the DTE AND LOOP test perform the following steps 1 Press SELECT three times to turn on both the DTE AND Loop test indicators Press TEST while these test indicators are on To terminate this test press TEST DSU 56 64 User Manual 3 5 Chapter 3 Test Modes LOOP ONLY TEST RT The LOOP ONLY test or REMOTE LOOPBACK test RT is used to test the loop interface and a major portion of the DTE interface of the local DSU 56 64 from the remote site over the actual digital data circuit For the LOOP ONLY test the network receive data is looped to the network transmit data inside the DTE interface section of the DSU 56 64 The physical DTE interface
6. in pattern back towards the ALM indicator These patterns are repeated four times for visual verification that all LEDs are functioning properly At the completion of the LED test patterns the PTRN LED is on which indicates that the DTE with TP test is being performed If the test is successful the ERROR indicator does not turn on If the DTE wITH TP test fails the RS ALM DTE PTRN and ERROR indicators all flash DSU 56 64 User Manual 3 1 Chapter 3 Test Modes If an EPROM CHECKSUM failure is detected during self test CS ALM PTRN and ERROR indicators all flash at the end of the self test NEAR END TESTS The local DSU 56 64 can perform the following near end tests DTE Only DTE with Test Pattern DTE and LOOP LL Loop Only RT DTE ONLY TEST The DTE ONLY test can test both the DTE interface of the local DSU 56 64 plus its loop transmitter and receiver For this test the loop transmit data is connected to the loop receive data at a point close to the physical network interface The loopback point and the signal paths for this test are shown in Figure 3 1 DTE or Test Equipment Interface 3 2 DTE Transmit Interface Interface 56 64 DSU Receive Interface Network Loop Interface Transmit Interface aie ata Catia gt Loop TX Loop RX Figure 3 1 DTE Only Test Diagram DSU 56 64 User Manual 61200062L1 1 Chapter 3 Test Modes To initiate th
7. installed and used in accordance with the instruction man ual may cause harmful interference to radio frequencies Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Shielded cables must be used with this unit to ensure compliance with Class A FCC limits Change or modifications to this unit not expressly approved by the party re CAUTION sponsible for compliance could void the user s authority to operate the equip ment Canadian Emissions Requirements This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference causing equipment standard enti tled Digital Apparatus ICES 003 of the Department of Communications Cet appareil nuerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Class A prescrites dans la norme sur le materiel brouilleur Appareils Numeriques NMB 003 edictee par le ministre des Communications viii Canadian Equipment Limitations Notice The Canadian Industry and Science Canada label identifies certified equip ment This certification means that the equipment meets certain telecommunications network protective operational and safety requirements The Department does not guarantee the equipment will operate to the user s satisfaction Before installing this e
8. is ignored for this test The LOOP LED flashes during initialization of the test and turns on solid once the test is in progress Figure 3 4 illustrates the loopback point and the signal paths for this test DTE or Test Equipment DTE Interface Transmit Interface TD RD DTE Receive Interface 56 64 DSU Network Loop Interface Transmit Interface Loop TX i Loop RX Interface Figure 3 4 Loop Only Test Diagram To initiate the LOOP ONLY test perform the following steps 1 Press SELECT four times to turn on the LOOP test indicator 2 Press TEST while this test indicator is on 3 To terminate this test press TEST 3 6 DSU 56 64 User Manual 61200062L1 1 Chapter 3 Test Modes FAR END TESTS Remote Digital When the RDL test is initiated at the local DSU 56 64 it commands the remote DSU into loopback with the industry standard V 54 loopback pattern The loopback point and the signal paths for the remote DSU are the same as the LOOP ONLY test for a local DSU shown in Figure 3 4 on page 3 6 This Loopback test is performed with data from the terminal or test equipment The RDL LED flashes during initialization of the test and turns on solid once the test is in progress To initiate the RDL test perform the following steps 1 Press SELECT five times to turn on the RDL test indicator 2 Press TEST while this test indicator is on 3 To terminate this test p
9. maintainer s is are under the control of a supervisor trained in accordance with circle one above I agree to provide telco s name with proper documentation to demonstrate compliance with the information in the preceding paragraph if so requested Signature Title Date Subscribed and sworn to before me This day of 20 Notary Public My commission expires vi FCC regulations require that the following information be provided in this manual 1 This equipment complies with 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 REN for this equipment if applicable If required this information must be given to the telephone company The following information may be required when applying to the local telephone company for leased line facilities Service Type Digital Facility Service Order Code Network Interface Code Jacks 56 kbps Digital Interface 04DU5 56 6 0F RJ 48S An FCC compliant telephone cord with a modular plug may be provided with this equipment This equipment is designed to be connected to the telephone net work or premises wiring using a compatible modular jack which is FCC Part 68 compliant See Chapter 2 Installation on page 2 1 for details If this equipment causes harm to the telephone network the telephone company may temporarily discontinue servic
10. termination on a loop may consist of any combination of devices subject only to the requirement that the total of the Load Numbers of all devices does not exceed 100 Limited Product Warranty ADTRAN warrants that for five 5 years from the date of shipment to Customer all products manufactured by ADTRAN will be free from defects in materials and work manship ADTRAN also warrants that products will conform to the applicable speci fications and drawings for such products as contained in the Product Manual or in ADTRANS internal specifications and drawings for such products which may or may not be reflected in the Product Manual This warranty only applies if Customer gives ADTRAN written notice of defects during the warranty period Upon such notice ADTRAN will at its option either repair or replace the defective item If ADTRAN is unable in a reasonable time to repair or replace any equipment to a condition as warranted Customer is entitled to a full refund of the purchase price upon return of the equipment to ADTRAN This warranty applies only to the original purchaser and is not transferable without ADTRAN s express written permission This warranty becomes null and void if Customer modifies or alters the equipment in any way other than as specifically authorized by ADTRAN EXCEPT FOR THE LIMITED WARRANTY DESCRIBED ABOVE THE FOREGOING CONSTITUTES THE SOLE AND EXCLUSIVE REMEDY OF THE CUSTOMER AND THE EXCLUSIVE LIABILITY OF ADTRAN AN
11. the telephone company whenever digital terminal equipment without encoded analog content and billing protection is used to transmit digital signals containing encoded analog content which are intended for eventual conversion into voice band analog signal and transmitted on the network The affidavit shall affirm that either no encoded analog content or billing informa tion is being transmitted or that the output of the device meets Part 68 encoded analog content or billing protection specification End user customer will be responsible to file an affidavit with the local exchange carrier when connecting unprotected CPE to a 1 544 Mbps or subrate digital ser vice Until such time as subrate digital terminal equipment is registered for voice appli cations the affidavit requirements for subrate services are waived Affidavit for Connection of Customer Premises Equipment to 1 544 MBPS and or Subrate Digital Services For the work to be performed in the certified territory of telco name State of County of L name business address telephone number being duly sworn state I have the responsibility for the operation and maintenance of the terminal equipment to be connected to 1 544 Mbps and or subrate digital services The terminal equipment to be connected complies with Part 68 of the FCC rules except for the encoded analog content and billing protection specification With respect to encoded analog content and b
12. ADRAN DSU 56 64 Data Service Unit User Manual Part Number 1200062L1 61200062L1 1E May 2001 ADRAN 901 Explorer Boulevard P O Box 140000 Huntsville AL 35814 4000 256 963 8000 2001 ADTRAN Inc All Rights Reserved Printed in U S A The following conventions are used in this manual NOTE Notes provide additional useful information CAUTION Cautions signify information that could prevent service interruption Warnings provide information that could prevent damage to the equip Y X W ARNING ment or endangerment to human life Important Safety Instructions When using your telephone equipment please follow these basic safety precautions to reduce the risk of fire electrical shock or personal injury 1 Do not use this product near water such as near a bathtub wash bowl kitchen sink laundry tub in a wet basement or near a swimming pool 2 Avoid using a telephone other than a cordless type during an electrical storm There is a remote risk of shock from lightning 3 Do not use the telephone to report a gas leak in the vicinity of the leak 4 Use only the power cord power supply and or batteries indicated in the manual Do not dispose of batteries in a fire They may explode Check with local codes for special disposal instructions Save These Important Safety Instructions Affidavit Requirements for Connection to Digital Services An affidavit is required to be given to
13. Applications Engineering or ADT RAN Sales Applications Engineering 800 615 1176 Sales 800 827 0807 Post Sale Support Please contact your local distributor first If your local distributor cannot help please contact ADTRAN Technical Support and have the unit serial number available Technical Support 888 4ADTRAN The Custom Extended Services ACES program offers multiple types and levels of ser vice plans which allow you to choose the kind of assistance you need For questions call the ACES Help Desk ACES Help Desk 888 874 2237 Repair and Return If ADTRAN Technical Support determines that a repair is needed Technical Support will coordinate with the Custom and Product Service CAPS department to issue an RMA number For information regarding equipment currently in house or possible fees associated with repair contact CAPS directly at the following number CAPS Department 256 963 8722 xi Identify the RMA number clearly on the package below address and return to the fol lowing address ADTRAN Customer and Product Service 901 Explorer Blvd Huntsville Alabama 35806 RMA Training The Enterprise Network EN Technical Training Department offers training on our most popular products These courses include overviews on product features and func tions while covering applications of ADTRAN s product lines ADTRAN provides a va riety of training options including customized training and courses taugh
14. D IS IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED ADTRAN SPECIFICALLY DIS CLAIMS ALL OTHER WARRANTIES INCLUDING WITHOUT LIMITATION ALL WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE SOMESTATES DO NOT ALLOW THE EXCLUSION OF IMPLIED WAR RANTIES SO THIS EXCLUSION MAY NOT APPLY TO CUSTOMER In no event will ADTRAN or its suppliers be liable to Customer for any incidental special punitive exemplary or consequential damages experienced by either Cus tomer or a third party including but not limited to loss of data or information loss of profits or loss of use ADTRAN is not liable for damages for any cause whatsoever whether based in contract tort or otherwise in excess of the amount paid for the item Some states do not allow the limitation or exclusion of liability for incidental or consequential damages so the above limitation or exclusion may not apply to Cus tomer Customer Service Product Support Information and Training ADTRAN will replace or repair this product within five years from the date of ship ment if the product does not meet its published specification or if it fails while in ser vice A return material authorization RMA is required prior to returning equipment to ADTRAN For service RMA requests training or more information see the toll free contact numbers given below Presales Inquiries and Applications Support Please contact your local distributor ADTRAN
15. D flashes during initialization of the test and turns on solid once the test is in progress To initiate the PTRN test perform the following steps 1 Press SELECT seven times to turn on the PTRN test indicator 2 Press the TEST switch while this test indicator is on 3 To terminate this test press TEST DSU 56 64 User Manual 61200062L1 1 Chapter 3 Test Modes REMOTE TESTS The DSU 56 64 responds to three remotely activated tests e Remote Digital Loopback RDL e CSU Loopback LL e DSU Loopback RT The RDL test is initiated by a remote DSU and causes the local DSU 56 64 to loopback The loopback point is the same as the loop only point See Figure 3 4 on page 3 6 This test is run to test the end to end performance of the circuit Both the CSU LOOPBACK and the DSU LOOPBACK tests are activated from the telephone company diagnostic test equipment and are used to isolate trouble on a circuit The CSU LOOPBACK commonly called the LL test has the same loopback points as the DTE AND LOOP test It is used by the telephone company to test the integrity of the local loop The DSU LOOPBACK commonly called the RT test has the same loopback point as the Loop ONLY test and is used by the telephone company to test the operation of both the local loop and DTE interface sections 61200062L1 1 DSU 56 64 User Manual 3 9 Chapter 3 Test Modes 3 10 DSU 56 64 User Manual 61200062L1 1 Appendix A P nouts Table A 1 Pinou
16. NETWORK CONNECTIONS This interface consists of four leads that are paired to provide separate transmit and receive circuits The four leads are provided on the eight position modular jack DSU RJ 485 labeled TELCO on the rear panel of the DSU 56 64 The pinouts for this connector are shown in Table A 1 on page A 1 DTE CONNECTIONS The Data Terminal Equipment DTE is attached to the connector labeled PRIMARY V 35 at the rear of the DSU 56 64 The pinout for the V 35 DTE connector is shown in Table A 2 on page A 2 A shielded V 35 cable is required to prevent possible radio frequency in CAUTION terference emissions 61200062L1 1 DSU 56 64 User Manual 2 5 Chapter 2 Installation 2 6 DSU 56 64 User Manual 61200062L1 1 Chapter 3 SELF TEST 61200062L1 1 Test Modes In addition to a self test mode the DSU 56 64 has other extensive test modes which are designed to help isolate problems to specific components of the communications circuit These various test modes for the DSU 56 64 are initiated and terminated from the front panel using the SELECT and TEST buttons A self test goes through the following cycle 1 When the DSU 56 64 is powered on all LEDs on the front panel turn on simultaneously for approximately two seconds 2 After two seconds all the LEDs turn off briefly 3 The LEDs then cycle on in pairs with a fan out pattern away from the ALM indicator 4 Next the LEDs cycle off in pairs with a fan
17. SU Network Transmit Transmit Interface i Interface TD i IS E Loop TX with Test Pattern RD lt Loop RX DTE 1 Receive Y Receive H Interface Interface Test Pattern Detector Figure 3 2 DTE with TP Test Diagram The internal test pattern generator and detector of the DSU 56 64 operate with a 2047 data pattern When this test is initiated the test pattern detector examines the receive data stream until synchronization to the 2047 pattern occurs Once synchronized the detector continues to check the receive data and reports any detected bit errors by turning on the ERROR LED Once a testis initialized with the internal test pattern generator and detector errors can be injected into the transmit data stream by pressing SELECT and observed by watching the ERROR LED turn on for a brief period of time As previously mentioned the DTE WITH TP is automatically performed during the self test sequence for the DSU 56 64 DTE AND LOOP TEST LL 3 4 This test is initiated at the local DSU 56 64 and allows independent testing of the separate sections of the DSU 56 64 This includes testing of the local DTE interface with data from the terminal or test equipment and testing of the loop interface section of the local DSU DSU 56 64 User Manual 61200062L1 1 61200062L1 1 Chapter 3 Test Modes 56 64 from the remote site over the actual communications circuit Testing
18. ar End Tests 3 7 loop only test 3 6 PTRN test 3 8 remote digital 3 7 remote tests 3 9 self test 3 1 test status error LED identification 1 3 test switches on front panel 1 3 training information how to contact xii V V 35 DTE pinouts A 2 Ww warranty x DSU 56 64 User Manual 61202062L1 1
19. e If possible advance notification is given otherwise notification is given as soon as possible The telephone company will advise the customer of the right to file a complaint with the FCC The telephone company may make changes in its facilities equipment operations or procedures that could affect the proper operation of this equipment If this hap pens the telephone company will provide advance notification and the opportunity to make the necessary modifications to maintain uninterrupted service If experiencing difficulty with this equipment please contact ADTRAN for repair and warranty information If the equipment is causing harm to the network the telephone company may request this equipment to be disconnected from the network until the problem is resolved or it is certain that the equipment is not malfunctioning This unit contains no user serviceable parts The FCC recommends that the AC outlet to which equipment requiring AC power is to be installed is provided with an AC surge arrester vii 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 FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio fre quency energy and if not
20. e DTE ONLY test perform the following steps 1 Press SELECT once to turn on the DTE test indicator 2 Press TEST while the test indicator is on 3 To terminate the test press TEST Test data from the terminal or test equipment is routed through the DTE section of the DSU 56 64 and then to the output of the loop transmitter section where the signal is encoded for transmission The output of the loop transmitter is coupled back to the loop receiver input The received test signal is then decoded and returned to the terminal or test equipment where it is checked for any bit errors DTE WITH TEST PATTERN TP The DTE with TP test is similar to the DTE ONLY TEST described in Figure 3 1 on page 3 2 It is initiated at the local DSU 56 64 and is used to independently test the operation of the DSU 56 64 To initiate the DTE WITH TP test perform the following steps 1 Press SELECT twice to turn on both the DTE and PTRN test indicators 2 Press TEST while these test indicators are on 3 To terminate this test press TEST Instead of using data from the terminal or test equipment this test utilizes an internal test pattern generator and detector in the DSU 56 64 The loopback point and the data paths for this test are illustrated in Figure 3 2 on page 3 4 61200062L1 1 DSU 56 64 User Manual 3 3 Chapter 3 Test Modes DTE or Test 1 Equipment DTE y Loop Interface Interface E Test Pattern Generator 56 64 D
21. illing protection Lattest that all operations associated with the establishment maintenance and adjust ment of the digital CPE with respect to encoded analog content and billing protection information continuously complies with Part 68 of the FCC rules and Regulations The digital CPE does not transmit digital signals containing encoded analog con tent or billing information which is intended to be decoded within the telecommuni cations network The encoded analog content and billing protection is factory set and is not under the control of the customer I attest that the operator s maintainer s of the digital CPE responsible for the estab lishment maintenance and adjustment of the encoded analog content and billing information has have been trained to perform these functions by successfully having completed one of the following check appropriate blocks A A training course provided by the manufacturer grantee of the equipment used to encode analog signals or B A training course provided by the customer or authorized representative using training materials and instructions provided by the manufacturer grantee of the equipment used to encode analog signals or C An independent training course e g trade school or technical institution rec ognized by the manufacturer grantee of the equipment used to encode analog sig nals or D In lieu of the proceeding training requirements the operator s
22. is forced on all the time Clear to Send Delay CS Delay SW 2 Switch Position RS to CS Delay Down Short 250 Us 125 Us Up Long 10 ms 125 Us 2 2 DSU 56 64 User Manual 61200062L1 1 Chapter 2 Installation Antistream SW 3 The Antistream option is used to select the antistream time out The antistream time out is the maximum time the DSU 56 64 is allowed to transmit data from the DTE into the network This feature prevents one DTE device on a multi drop network from continuously tying up the transmit circuit from a remote DSU back to the master DSU The antistream timer is reset to zero when RS transitions to the active state and is updated every second while RS is active When the antistream time out expires the DSU 56 64 stops transmitting DTE data into the network It does however continue to accept data CS is maintained in the active state until the DTE deactivates the RS input Down Off The Antistream timer is disabled Up On The Antistream timer is enabled and set for 45 0 5 seconds Carrier Detect CD SE 4 Down Normal CD is on any time customer data is being received and off when the receive circuit is idle not carrying customer data Up On CD is forced on all the time Data Set Ready SR SW 5 61200062L1 1 Down On SR is forced on all the time Up Normal SR is only turned off when the network is out of service or a test is in progress DSU 56 64 User Ma
23. nual 2 3 Chapter 2 Installation Remote Digital Loopback RDL SW 6 Down Enable The DSU 56 64 accepts the industry standard V 54 RDL command from the far end of the circuit Up Disable The DSU 56 64 does not respond to the V 54 loopback command from the far end of the circuit Loop Rate SW 7 Down 56 Kbps The network interface of the DSU 56 64 is configured for operation at 56 kbps Up 64 kbps The network interface is configured for 64 kbps operation Scrambler SW 8 For 64 kbps clear channel operation there is a possibility that the DTE data sequenced might mimic network loop maintenance functions and erroneously cause other network elements to activate loopbacks To prevent this the Scrambler switch should be set to the Down On position The SCRAMBLER ON option must be set the same for both the local and remote 56 64 DSUs for the situation described above The option is only valid when the 64 kbps rate is selected Down On The scrambler is enabled Up Off The scrambler is disabled 2 4 DSU 56 64 User Manual 61200062L1 1 Chapter 2 Installation Table 2 1 Default Option Switch Settings Switch Position Setting 1 Down Clear to Send CS Normal 2 Down CS Delay Short 3 Down Anti stream Timer Off 4 Down Carrier Detect CD Normal 5 Up Data Set Ready SR Normal 6 Down Remote Digital Loopback RDL Enabled 7 Down Loop Rate 56 Kbps 8 Down Scrambler Enabled
24. op specifications per AT amp T Pub 62310 Loop Rates e 56 kbps or 64 kbps Receiver Sensitivity e 45 dB DTE Interfaces e V 35 synchronous DTE Operating Modes e Full or half duplex DTE Data Rates e 56 kbps or 64 kbps synchronous DSU 56 64 User Manual B 1 Appendix B Specifications B 2 Diagnostics Network test center activated e CSU loopback on sealing current reversal in local loop e DSU loopback User activated e Self test e Local loopback e V 54 activated remote loopback with 2047 test pattern e DTE data data from external test set Power e 115 VAC e 4 Watts maximum Environment e Operating Temperature 0 C to 50 C 32 F to 122 F e Storage Temperature 20 C to 70 C 4 F to 158 E e Relative Humidity Up to 95 non condensing Hardware Specifications e Dimensions 1 56 inches H 6 50 inches W 8 32 inches L e Weight 1 5 pounds DSU 56 64 User Manual 61200062L1 1 Index A ACES help desk xi affidavit connection for digital services iv connection of CPE equipment v antistream SW 1 2 3 Applications engineering how to contact xi C cables included with shipment 2 1 provided by customer 2 1 Canadian emissions requirements viii Canadian equipment limitations ix CAPS department how to contact xi carrier detect CD SE 4 2 3 clear to send CS SW 1 2 2 clear to send delay CS delay SW 2 2 2 configuration for network and DTE interfaces 2 2 custome
25. pe tbe e eerte 3 8 Remote Tests uot ee ida hath sp EE Receta 3 9 Appendix A Pinouts nn e A E a tate teta ta EAA A 1 Appendix B Specifications essent setenta tn tn tata ieena B 1 Md Index 1 xiv DSU 56 64 User Manual 61200062L 1 1 List of Figures Figure 1 1 Figure 1 2 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 61200062L1 1 DSU D6 64 Unit ancien eee ied nette nie cbs ea Hobbes ag 1 2 DSW156 64 Rear Panel 32 nett eren oe tere sn c eed 1 4 DIE Only Iest DIiagrath s 5ncee nte hone eee mete 3 2 DTE with TP Test Diagratn eet rrt rte iii 3 4 DTE and Loop Test Diagram 2 nee treetm nee eren 3 5 Loop Only Test Diagratn herren rte Pr er eee retener 3 6 DSU 56 64 User Manual XV List of Figures xvi DSU 56 64 User Manual 61200062L1 1 List of Tables Table 2 1 Default Option Switch Settings sse eee 2 5 Table A 1 Pinouts for RJ 48S Network Connections eese A 1 Table A2 V 35 DTE Pints oia ct e ics A 2 xvii 61200062L 1 1 DSU 56 64 User Manual List of Tables xviii DSU 56 64 User Manual 61200062L1 1 Chapters Introduction PRODUCT OVERVIEW The ADTRAN DSU 56 64 shown in Figure 1 1 on page 1 2 is a technologically advanced high performance Data Service Channel Service Unit DSU CSU that provides the interface between telco provided Digital Data Service DDS and the customer s Data Terminal Equipment DTE
26. quipment users should ensure that it is permissible to be con nected to the facilities of the local telecommunications company The equipment must also be installed using an acceptable methods of connection In some cases the com pany s inside wiring associated with a single line individual service may be extended by means of a certified connector assembly telephone extension cord The customer should be aware that compliance with the above limitations may not prevent degra dation of service in some situations Repairs to certified equipment should be made by an authorized Canadian mainte nance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecommunications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connections of the power utility telephone lines and internal metallic water pipe system if present are connected together This precaution may be particularly important in rural areas Users should not attempt to make such connections themselves but y ARNING should contract the appropriate electric inspection authority or an elec N I trician as appropriate The Load Number LN assigned to each terminal device denotes the percentage of the total load to be connected to a telephone loop which is used by the device to pre vent overloading The
27. r service xi D data set ready SR SW 5 2 3 diagnostics of DSU 56 64 B 2 DTE and Looptest 3 4 DTE connections 2 5 DTE status LED identification 1 2 DTE with TP test 3 3 DTE only test 3 2 E environmental specifications B 2 F Far End Tests 3 7 FCC radio frequency interference viii 61202062L1 1 FCC regulations vii features of DSU 56 64 B 1 front panel description and drawing 1 2 LED identification 1 2 test switches 1 3 H help desk how to contact xi L LED identification DTE status 1 2 for front panel 1 2 Network Status 1 2 test status error 1 3 Loop Only Test 3 6 loop rate SW 7 2 4 N network connections 2 5 Network status LED identification 1 2 P pinouts RJ 48S network connections A 1 V 35 DTE A 2 power cord description of 2 2 power features B 2 product overview 1 1 product warranty x PTRN test 3 8 R rear panel description and graphic 1 4 remote digital loopback RDL SW 6 2 4 remote digital test 3 7 DSU 56 64 User Manual Index 1 Index remote tests 3 9 repair and return information xi RJ 48S network connections pinouts A 1 RMA requests xi S safety instructions iii scrambler SW 8 2 4 self test mode 3 1 service type information vii shipping damage what to do 2 1 shipping package contents of 2 1 specifications B 1 T technical support how to contact xi test modes 3 1 Index 2 DTE and Loop Test 3 4 DTE with Test pattern test 3 3 DTE only test 3 2 F
28. ress TEST RDL with Test Pattern TP 61200062L1 1 When the RDL wiTH TP test is initiated at the local DSU 56 64 the local DSU commands the remote DSU into loopback with the industry standard V 54 loopback pattern The loopback point and the signal paths for the remote DSU are the same as the LOOP ONLY test for a local DSU see Figure 3 4 on page 3 6 This LOOPBACK test is performed with data from the internal test pattern generator and error detector The RDL and PTRN LEDs flash during initialization of the test and turn on solid once the test is in progress To initiate the RDL WITH TP test perform the following steps 1 Press SELECT six times to turn on both the RDL and PTRN test indicators 2 Press TEST while these test indicators are on 3 To terminate this test press the TEST switch DSU 56 64 User Manual 3 7 Chapter 3 Test Modes Test Pattern PTRN 3 8 When the PTRN test is initiated the local DSU 56 64 uses the integral test pattern generator to transmit a standard 2047 test pattern to the DSU on the far end of the circuit The local DSU 56 64 then examines the received data for the standard 2047 pattern Once this pattern is detected and synchronization is achieved the ERROR indicator is turned off The ERROR indicator turns on when errors in the receive data pattern are detected While this test is active errors can be injected into the transmit data stream by pressing the SELECT push button The PTRN LE
29. t at our facilities or at your site For more information about training please contact your Terri tory Manager or the Enterprise Training Coordinator Training phone 800 615 1176 ext 7500 Training fax 256 963 7941 Training email trainingO adtran com xii Table of Contents n qodui xv Couple xvii Chapter 1 Introduction Product Overview eti ct itoe etc Hester t t ce rotes dope Edito es a dee deeds 1 1 Front Panel aa acia ri dta EN ete tfe ad M Res 1 2 LED Identification 2 9 3 ARR eese tore teer e ec ER Te Ee deg 1 2 DIE Status Greer eere et eerte tete ee eile reet oerte eres 1 2 Network Status Red essere eee 1 2 Test Status Error Yellow Red sess 1 3 TESESWICALS A a aaa 1 3 Rear Parielzsc AEE ATEEN A e E cian E S R 1 4 Chapter 2 Installation Unpack Inspect Power Up 6 ertet eee EE AE 2 1 Contents of Shipping Package sse e eee eene 2 1 Customer Provides 2 diee ehe etie ie eu 2 1 Power B e een ee ntn rire Date de RATER MO Ete 2 2 Config utatlODz neret eri RER rester AA tt DA eb eve enge vigour e eee ed 2 2 Clear To Send ESAS Wii 2 2 Down Not Mali iet a 2 2 UPM at oi it AAE E as PT AR 2 2 Clear to Send Delay CS Delay SW 2 sess eene 2 2 SWIC POSO td E E act a EEE adios 2 2 Downe Short aia Mesa hile netta ittm oss 2 2 Up La e e eret acus e Mes 2 2 AUSTIN UN eite ae nene vee ae edd ei ERE ee 2
30. tely with the carrier and then contact ADTRAN Customer and Product Service CAPS If possible keep the original shipping container for use in returning the unit for repair or for verification of damage during shipment Contents of Shipping Package The following items are included in ADTRAN shipments of the DSU 56 64 e The DSU 56 64 unit e Network interface cable e An8 position modular to 8 position modular cable e The DSU 56 64 User Manual Customer Provides e V 35 cable 61200062L1 1 DSU 56 64 User Manual 2 1 Chapter 2 Installation Power Up 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 NOTE Ensure that a grounded 115 VAC 60 Hz receptacle is used for powering the DSU 56 64 unit CONFIGURATION The DSU 56 64 has eight options for controlling the operation of both the network and DTE interfaces These options are selected by setting individual switches on either position DIP switch that is accessible from the rear panel A chart showing the options and switch settings is attached to the bottom of the unit Clear To Send CS SW 1 Down Normal In the down position CS follows the RS lead with the selected amount of delay The only exceptions to this occur when network or test conditions prevent data from being transferred over the DTE interface During these conditions CS is turned off Up On CS
31. ts for RJ 48S Network Connections Pin Number Function Signal Direction 1 Transmit Data R From Customer to Network Interface Transmit Data T From Customer to Network Interface 3 6 Not Used N A Receive Data T 1 From Network Interface to Customer 8 Receive Data R 1 From Network Interface to Customer 61200062L1 1 DSU 56 64 User Manual A 1 Appendix A Pinouts Table A 2 V 35 DTE Pinouts Pin CCITT Description A 101 Protective Ground B 102 Signal Ground SG C 105 Request to Send RS D 106 Clear to Send E 107 Data Set Ready SR F 109 Receive Line Signal Detector CD R 104 Received Data RD A T 104 Received Data RD B V 115 Receiver Signal element Timing SCR A X 115 Receiver Signal Element Timing SCR B P 103 Transmitted Data SD A S 103 Transmitted Data SD B Y 114 Transmitter Signal element Timing SCT A AA 114 Transmitter Signal element Timing SCT B U 113 External TX Signal element Timing SCX A W 113 External TX Signal element Timing SCX B A 2 DSU 56 64 User Manual 61200062L1 1 Appendix B Specifications SPECIFICATIONS AND FEATURES 61200062L1 1 The DSU 56 64 is a single stand alone unit designed to be used either on a desktop or mounted on a wall This section describes the standard specifications and features incorporated in the DSU 56 64 Loop Interface e 4 wire full duplex Line Requirements e Local lo
Download Pdf Manuals
Related Search