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                        ADCP-61-743 • Issue 3 • September 2004 
®
Soneplex
Remote Test Access Unit (RTAU)
 
User Manual)
Content Page 
1   DESCRIPTION ........................................................................................................................................4 
1.1  DS3 MUX Compatibility .....................................................................................................................6 
2    INSTALLATION .....................................................................
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Related Publications  Listed below are related manuals and their publication numbers. Copies of these publications  can be ordered by contacting the ADC Technical Assistance Center at 1-800-366-3891.  Title ADCP Number  Soneplex Broadband System Description, Design, and Application Manual (V5) ADCP-61-472  Soneplex Broadband System Operation and Maintenance Manual (V5) ADCP-61-471  Soneplex DS3 MUX Module Installation Instructions ADCP-61-742   Soneplex Sy
                    
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                        ADCP-61-743 • Issue 3 • September 2004  FCC Compliance Statement  The Remote Test Access Unit has been certified to comply with the requirements for Class A  computing devices per part 15 of the FCC regulations.    Warning: This equipment generates, uses, and can radiate radio frequency energy and if not  installed and used in accordance with the instruction manual, may cause interference to radio  communications. It has been tested and found to comply with limits for a Class A digital device  p
                    
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                        ADCP-61-743 • Issue 3 • September 2004  1 DESCRIPTION  The Remote Test Access Unit (RTAU) (Figure 1) provides maintenance functionality for  monitoring and intrusive test access to the DS1 channels in the chassis between the DS3 MUX  and the low speed distribution modules (DLX, HLXC, ODS2, and RLX). The RTAU requires  no periodic maintenance. It requires the Version D1 or later DS3 MUX module and MPU  Version 5.3 or SCU Version 3.0 or later system software to be functional in the Soneplex  Broad
                    
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                        RTAU STATUS B8ZS AMI LINE CODE INTRUSIVE TEST BIPOLAR ACCESS RX D S 1 TX ADCP-61-743 • Issue 3 • September 2004  11897-A   Figure 1. Remote Test Access Unit (RTAU) Module  Page 5  © 2004, ADC Telecommunications, Inc.                                                                                                                                                                                                                                                                                            
                    
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                        ADCP-61-743 • Issue 3 • September 2004  1.1 DS3 MUX Compatibility  Refer to Table 1 for compatibility information for DS3 MUXs, test access units, and MPU/SCU  software versions.  Table 1. DS3 MUX, TAU/RTAU, and MPU/SCU Software Compatibility   TEST ACCESS MPU SOFTWARE SCU SOFTWARE   DS3 MUX TYPE UNIT TYPE VERSION VERSION FUNCTIONALITY  C1 TAU 5.1.1 or later 2.5 or later TAU  C1 RTAU 5.1.1 or later 2.0 or later NO TEST ACCESS  D1 TAU 5.1.1 or later 2.5 or later TAU  D1 RTAU 5.2 or earlier 2.5 or
                    
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                        ADCP-61-743 • Issue 3 • September 2004  2.1  Initial Installation  This installation procedure applies to the first time an IBBC shelf will be populated with  a RTAU module. If the IBBC shelf has already been populated with a RTAU module, go  to 2.2. Maintenance Installation (Existing System).  Installation consists of unpacking and installing the RTAU module, and verifying that it is  functioning properly. Use the following procedure to install a RTAU module:    Caution: Electronic modules can 
                    
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                        ADCP-61-743 • Issue 3 • September 2004  APU HSW HSP 1-1 1-3 2-1 2-3 3-1 3-3 4-1 4-3 5-1 5-3 6-1 6-3 7-1 7-3 MXW MXP TAU CR MJ MN ACO PWR RTAU HSKP RMT ALM STATUS STATUS DISP RMT LPBK LPBK STATUS LMPTST ENABLE ENABLE B8ZS APU AMI ONLINE ONLINE LINE CODE DS3 FAIL DS3 FAIL INTRUSIVE TEST STATUS LOCKOUT LOCKOUT APS APS C FORCE FORCE R A APS LMPTST/ APS LMPTST/ F RX T D S 1 TX RESET RESET RESET 1-2 1-4 2-2 2-4 3-2 3-4 4-2 4-4 5-2 5-4 6-2 6-4 7-2 7-4 SCU 14185-A RTAU MODULE   Figure 2. RTAU Mounting P
                    
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                        ADCP-61-743 • Issue 3 • September 2004  2.2  Maintenance Installation (Existing System)  Replacement of the RTAU module in existing IBBC shelves should follow normal  maintenance procedures. Since a module has already been in service in the affected slot, the  backplane pins will have been trained into alignment with subsequent replacement modules. If  excessive resistance is encountered upon insertion, remove the module and inspect for  misalignment or obstructions.  This procedure assumes that
                    
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                        ADCP-61-743 • Issue 3 • September 2004  3 LED CHECK   1. When the RTAU module (Figure 3) is seated, the STATUS LED will be lit red for  approximately 5 seconds. All LEDs will then flash yellow, and then the STATUS LED  will be lit green. If the STATUS LED is not lit green after 10 seconds, replace the  module. Refer to 2.2 Maintenance Installation (Existing System).  RTAU STATUS B8ZS AMI LINE CODE INTRUSIVE  TEST BIPOLAR ACCESS RX D S TX 1 12693-B   Figure 3. RTAU Front Panel  Page 10   2004, A
                    
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                        ADCP-61-743 • Issue 3 • September 2004  4 FRONT PANEL OPERATION  All controls and indicators of the RTAU including the jack accesses for a selected DS1 signal  are located on the front panel (Figure 3). The controls and indicators are described in Table 2.  Table 2. RTAU Front Panel Description  INDICATOR COLOR DESCRIPTION  STATUS  Red Module failure.   Yellow LED test.   Green Module operating normally.  B8ZS / AMI Green Indicates that the user has selected B8ZS line code for the bipolar  inter
                    
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                        ADCP-61-743 • Issue 3 • September 2004  5 CONFIGURATION  Use this menu to view or edit the configuration for the RTAU module after it is installed in the  chassis. This menu can also be used to equip, provision, assign thresholds, and assign service  state.    Note: A “toggle” field type means the user can press the space bar to view and select the  next option that is described; or the user can press the “R” key to view and select the previous  option. An “input” field type means the user must 
                    
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                        ADCP-61-743 • Issue 3 • September 2004   5. Use the arrow or number keys to select RTAU Setup and Control from the RTAU  Configuration menu. Press Enter or Return. The RTAU Setup and Control screen will  appear as shown in Figure 6.    Note: If the RTAU is not plugged into the chassis and the Test Access Unit Commands  selection is made from the System Maintenance menu, the Test Access Unit  Status/Commands screen will appear as shown in Figure 7. This screen cannot be  configured. However, if t
                    
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                        ADCP-61-743 • Issue 3 • September 2004    SYSTEM MAINTENANCE         1. Force/APS Commands   2. Reset/LED Test Commands   3. Execute ACO (Alarm Cutoff)   4. Loopback Status/Commands   5. Display Inventory   6. Display Circuit IDs   7. SCU-860 Data Transfer Commands   8. Trouble Isolation   9. Metallic Testing Screen (for IBBCMLQ only)   A. Test Access Unit Commands                Press CONTROL-A For Assistance Figure 4. System Maintenance Menu                                       RTAU CONFIGURA
                    
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                        ADCP-61-743 • Issue 3 • September 2004   7. Assign the selections by pressing Enter or Return.    RTAU SETUP AND CONTROL         EQUIPMENT SETUP       ===============       Current User : NONE                         Test Circuit: 1-1       Line Code    : INTERNAL                     Mode        : DISABLE          SIGNAL GENERATOR SETUP       ======================       Pattern Type : QRS         #:    --------------------------------       Frame Format : UNFRAMED       Loop Code    : NONE     
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Table 3. RTAU Configuration Fields  FIELD TYPE OPTIONS DESCRIPTION DEFAULT  EQUIPMENT SETUP FIELDS  Current User Toggle  OVERVIEW: The Current User field can only be NONE  set to NONE or CRAFT from the Craft menu.  If  the Current User field is set to NONE, the Mode  field is automatically set to DISABLE.  However,  to change this field to CRAFT, the Mode field  must first be set to an option other than DISABLE.  At that point, the Current User field is  a
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Table 3. RTAU Configuration Fields, continued  FIELD TYPE OPTIONS DESCRIPTION DEFAULT  EQUIPMENT SETUP FIELDS, continued  Mode Toggle  OVERVIEW: Valid  access modes and the resulting DISABLE  configurations are shown in Figure 8 (RTAU Test  Configuration Block Diagram), Figure 9 (MONF and  MONE), Figure 10 (SPLTB and SLPTA), Figure 11  (Typical Round-Robin Test Configuration), Figure 12  (Typical End Test Configuration), Figure 13 (SPLTF  and SLPTE), Figur
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Table 3. RTAU Configuration Fields, continued  FIELD TYPE OPTIONS DESCRIPTION DEFAULT  EQUIPMENT SETUP FIELDS, continued  Mode, continued  SPLTEL SPLTEL indicates a split in both the A and B paths   and connects an SPD to the line incoming from the  E direction and a TSG to the line outgoing in the E  direction similar to SPLTE mode. The signal in the  F direction is looped back.   Toggle SPLTFL SPLTFL indicates a split in both the A and B paths   and conn
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Table 3. RTAU Configuration Fields, continued  FIELD TYPE OPTIONS DESCRIPTION DEFAULT  SIGNAL GENERATOR SETUP FIELDS, CONTINUED  15 Pattern Type, continued Toggle 2^15-1 2 -1 is a 32,767-bit, pseudo-random pattern   that generates a maximum of 14 sequential 0’s  and 15 sequential 1’s. The pattern provides a  maximum number of 0’s allowed for framed,  non-B8ZS testing. The pattern does not meet  the minimum 1’s density requirement.  23   2^23-1 2 -1 is a 8,
                    
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                        ADCP-61-743 • Issue 3 • September 2004  Table 3. RTAU Configuration Fields, continued  FIELD TYPE OPTIONS DESCRIPTION DEFAULT  SIGNAL GENERATOR SETUP FIELDS, continued  Pattern Type, continued Toggle 1 in 8 Containing strings of 7 sequential 0’s. It is used   to determine the ability of a circuit to handle  payload signals having minimum 1’s density.  Use of this pattern often reveals the existence  of timing recovery problem under conditions of  low signal density.   Unframed = 1000 0000 1000