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Summary of Contents for DSU 5600

Page 1: ...DSU 5600 Data Service Unit USER MANUAL 61200 078L1 1D May 1997 ...

Page 2: ...901 Explorer Boulevard P O Box 140000 Huntsville AL 35814 4000 Phone 205 963 8000 1997 ADTRAN Inc All rights reserved Printed in USA ...

Page 3: ...dvance notification and the opportunity to maintain uninterrupted service is given 4 If experiencing difficulty with this equipment please contact ADTRAN for repair and warranty information The telephone company may require this equipment to be disconnected from the network until the problem is corrected or it is certain the equipment is not malfunctioning 5 This unit contains no user serviceable ...

Page 4: ...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 responsible for compliance could void the user s authority to operate the equipment CANADIAN EMISSIONS REQUIREMENTS This digital apparatus does not exceed the Class A li...

Page 5: ...airs to certified equipment should be made by an authorized Canadian maintenance facility designated by the supplier Any repairs or alterations made by the user to this equipment or equipment malfunctions may give the telecom munications company cause to request the user to disconnect the equipment Users should ensure for their own protection that the electrical ground connec tions of the power ut...

Page 6: ...Table of Contents ...

Page 7: ...Customer Provides 7 Warranty and Customer Service 8 Powering 8 Configuration 8 DTE Rate and Scrambler SW 1 SW 2 SW 3 8 Loop Rate SW 4 9 Clear To Send CS SW 5 9 Carrier Detect CD SW 6 10 Data Set Ready SR SW 7 10 Remote Digital Loopback RDL SW 8 10 Network Connections 11 DTE Connections 12 Chapter 3 Test Modes Self Test 13 Near End Test 14 DTE Only Test 14 DTE With Test Pattern TP 16 DTE and Loop T...

Page 8: ...Diagnostics 26 Power 26 Environment 26 Index 27 List of Tables Table 2 A Switch Settings for DTE Async Rate 9 Table 2 B Network Connections 11 Table 2 C Pin Assignments for Primary EIA 232 Connector 12 List of Figures Figure 1 1 DSU 5600 Front Panel 4 Figure 1 2 DSU 5600 Rear Panel 5 Figure 3 1 DTE Only Test Diagram 15 Figure 3 2 DTE with Test Pattern Test Diagram 17 Figure 3 3 DTE and Loop Test D...

Page 9: ...f operation for the DTE interface When the DTE interface is configured for synchronous operation the DSU 5600 matches the selected loop rate When the DTE interface is configured for asynchronous operation it supports asynchronous data commu nications over either a 56 kbps or 64 kbps DDS service In asynchronous mode the DTE can be configured to operate at any of the standard asynchronous communicat...

Page 10: ...D indicators that display DTE interface network and test status These indicators are defined in the following section LED Identification LED Identification DTE Status Green INDICATOR DEFINITION SOURCE RS Request To Send DTE CS Clear To Send DSU TD TransmitData DTE RD ReceiveData DSU CD Carrier Detect DSU The active state for the status indicators RS CS and CD is On the On state for the data indica...

Page 11: ... generator is being utilized for testing Error 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 For more information on the tests indicated by the indicators described previously see the chapter Test Modes Select and Test Buttons The front panel also contains two push button ...

Page 12: ...ynchronous DTE interface Connection to the DDS network is made using the 8 pin modular jack RJ 48S labeled TELCO The pin assignments for these connectors are listed in the sections Network Connections and DTE Connections All setup or configuration parameters for the DSU 5600 are selected with an eight position DIP switch that is accessible from the rear panel This switch is labeled OPTIONS and ref...

Page 13: ...3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 115 VAC 60HZ 06A TELCO OPTIONS LISTED ON BOTTOM PRIMARY EIA 232 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 115 VAC 60HZ 06A TELCO OPTIONS LISTED ON BOTTOM PRIMARY EIA 232 Figure 1 2 DSU 5600 Rear Panel ...

Page 14: ...6 DSU 5600 User Manual 61200 078L1 1 Chapter 1 Introduction ...

Page 15: ...f possible keep the original shipping container for use in return ing the unit to ADTRAN for repair or verification of shipping damage ADTRAN Shipments Include The following items are included in ADTRAN shipments of the DSU 5600 The DSU 5600 unit Network interface cable an 8 position modular to 8 position modular The user manual Customer Provides The customer must provide an EIA 232 interface cabl...

Page 16: ...s CONFIGURATION The DSU 5600 has eight options for controlling the operation of both the network and DTE interfaces These options are selected by setting individual switches on the eight position DIP switch that is accessible from the rear panel A label of the switch settings and their respective options is attached to the bottom of the unit for convenience DTE Rate and Scrambler SW 1 SW 2 SW 3 Th...

Page 17: ...s in the up 64 kbps position the network interface is configured for 64 kbps operation For 64 kbps clear channel operation there is a possibility that the DTE data sequences might mimic network loop maintenance functions and erroneously cause other network elements to activate loopbacks To prevent this a data scrambler is enabled when the 64 kbps option is selected Clear To Send CS SW 5 When this ...

Page 18: ...Set Ready SR SW 7 When this switch is in the down On position Data Set Ready SR is forced On all the time For the up normal position SR is turned Off when the network is out of service or a test is in progress Remote Digital Loopback RDL SW 8 When this switch is in the down enable position the DSU 5600 accepts the industry standard V 54 Remote Digital Loopback RDL command from the far end of the c...

Page 19: ...n modular jack RJ 48S labeled TELCO on the rear panel of the DSU 5600 The pin assignments for this connector are shown in Table 2 B Table 2 B Network Connections Pin Number Function Signal Direction 1 Transmit Data R From Customer to Network Interface 2 Transmit Data T From Customer to Network Interface 3 6 Not Used 7 Receive Data T 1 From Network Interface to Customer 8 Receive Data R 1 From Netw...

Page 20: ...ssignments for Primary EIA 232 Connector Pin Number Function Signal Direction 1 AA Protective Ground PG 2 BA Send Data SD 3 BB Receive Data RD 4 CA Request to Send RS 5 CB Clear to Send CS 6 CC Data Set Ready SR 7 AB Signal Ground SG 8 CF Receive Line Signal Detector CD 9 Not Used 10 Not Used 11 14 Not Used 15 DB Transmit Clock SCT 16 Not Used 17 DD Receive Clock SCR 19 24 Not Used A shielded EIA ...

Page 21: ...s then turn Off briefly The LEDs then cycle On in pairs with a fan out pattern away from the ALM indicator Next the LEDs cycle Off in pairs with a fan in pattern back towards the ALM indicator These patterns are repeated four times to determine that all LEDs are functioning properly At completion of the LED test patterns the PTRN LED is On indicating the DTE with TP test is being performed This te...

Page 22: ...k diagram illustrating the loopback point and the signal paths for this test is shown in Figure 3 1 To initiate the 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 To terminate this test press Test Test data from the terminal or test equipment is routed through the DTE section of the DSU 5600 and then to th...

Page 23: ...ual 15 Chapter 3 Test Modes DTE TRANSMIT INTERFACE LOOP TRANSMIT INTERFACE DTE RECEIVE INTERFACE LOOP RECEIVE INTERFACE DTE ONLY TD RD LOOP RX LOOP TX DTE OR TEST EQUIPMENT INTERFACE NETWORK INTERFACE Figure 3 1 DTE Only Test Diagram ...

Page 24: ...ctor built into the DSU 5600 The loopback point and the data paths for this test are illustrated in Figure 3 2 The internal test pattern generator and detector of the DSU 5600 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 is achieved Once synchro nized the detector continues to check...

Page 25: ...SMIT INTERFACE LOOP TRANSMIT INTERFACE DTE RECEIVE INTERFACE LOOP RECEIVE INTERFACE DTE WITH TEST PATTERN TD RD LOOP RX LOOP TX TEST PATTERN DETECTOR TEST PATTERN GENERATOR DTE OR TEST EQUIPMENT INTERFACE NETWORK INTERFACE Figure 3 2 DTE with Test Pattern Test Diagram ...

Page 26: ...s done with test data generated by the remote DSU or terminal type test equipment The DTE and Loop test splits the DSU 5600 into separate DTE and Loop interface sections and then loops the transmit data of each interface back to its respective receive data A block dia gram illustrating the loopback points and the signal paths for this test is shown in Figure 3 3 To initiate the DTE and Loop test p...

Page 27: ...19 Chapter 3 Test Modes DTE TRANSMIT INTERFACE LOOP TRANSMIT INTERFACE DTE RECEIVE INTERFACE LOOP RECEIVE INTERFACE DTE AND LOOP TD RD LOOP RX LOOP TX DTE OR TEST EQUIPMENT INTERFACE NETWORK INTERFACE Figure 3 3 DTE and Loop Test Diagram ...

Page 28: ...for this test A block diagram illustrating the loopback point and the signal paths for this test is shown in Figure 3 4 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 The Loop LED Flashes during initialization of the test and turns On solid once the test is in progress To terminate...

Page 29: ...Flashes during initialization of the test and turns On solid once the test is in progress To terminate this test press Test RDL with Test Pattern TP When the RDL with TP test is initiated at the local DSU 5600 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 ...

Page 30: ...ted 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 To initiate the PTRN test use the following steps 1 Press the Select switch seven times to turn On the PTRN test indicator 2 Press the Test switch while this test ind...

Page 31: ...d to end performance of the circuit Both the CSU Loopback and the DSU Loopback tests are acti vated 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 c...

Page 32: ...24 DSU 5600 User Manual 61200 078L1 1 Chapter 3 Test Modes ...

Page 33: ...corporated in the DSU 5600 Loop Interface 4 wire full duplex Line Requirements Local loop specifications per AT T Pub 62310 Loop Rates 56 kbps or 64 kbps Receiver Sensitivity 45 dB DTE Interfaces EIA 232 synchronous or asynchronous DTE Data Rates 1 2 kbps 2 4 kbps 4 8 kbps 9 6 kbps 19 2 kbps 38 4 kbps or 57 6 kbps asynchronous 56 kbps or 64 kbps synchronous DTE Operating Modes Full or half duplex ...

Page 34: ...urrent reversal in local loop DSU loopback User activated Self test Local loopback V 54 activated remote loopback with 2047 test pattern DTE data data from external test set Power 115 VAC 4 Watts maximum Environment Temperature Operating 0 C to 50 C 32 F to 122 F Storage 20 C to 70 C 4 F to 158 F Relative Humidity up to 95 non condensing ...

Page 35: ...nostics 26 Digital Loopback Test 21 with Test Pattern 21 DTE Operating Modes 25 DTE and Loop Test Diagram 19 DTE Data Rates 25 DTE Indicator 2 13 16 DTE Interface 1 2 8 25 DTE Only Test Diagram 15 DTE Status 2 DTE with Test Pattern 13 Diagram 17 E Environment 26 Error Indicator 3 13 16 Inject 16 F Far End Test 21 I Indicator ALM 2 13 CD 2 10 CS 2 9 DTE 2 13 16 Error 3 16 LED 8 Loop Test 3 PTRN 3 2...

Page 36: ...2 Prom Checksum Failure 13 PTRN Test Indicator 3 13 16 21 22 R RD Indicator 2 RDL Indicator 3 10 21 Rear Panel 4 Receive Data 2 Receiver Sensitivity 25 Remote Digital Loopback Test 3 Request To Send 2 RS Indicator 2 13 S Select Switch 22 Self Test 8 SR Indicator 10 SW 1 8 SW 2 8 SW 3 8 SW 4 9 SW 5 9 SW 6 10 SW 7 10 SW 8 10 Switch Options 4 Select 22 Test 3 21 T TD Indicator 2 Test DTE Interface 2 ...

Page 37: ...available Technical Support 888 4ADTRAN Repair and Return If ADTRAN Technical Support determines that a repair is needed Technical Support will coordinate with the Return Material Authorization RMA department to issue an RMA number For information regarding equipment currently in house or possible fees associated with repair contact RMA directly at the following number RMA Department 205 963 8722 ...

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