ADC PG-PLUS PLL-734 Manual
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ADC PG-PLUS PLL-734 Manual

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S
SCP-PLL734-020-03H
ECTION
PG-P
T
ECHNICAL
PG-PLUS
PLL-734
LIST
PWR
SYNC
MARGIN
BYPASS
FAULT
POTS1
POTS2
D
UAL
C
O
ENTRAL
FFICE
Model
List
PLL-734
2
LUS
P
RACTICE
A
B
2 POTS
L
U
INE
NIT
CLEI Code
S9L1APBA~~

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Summary of Contents for ADC PG-PLUS PLL-734

  • Page 1 PG-P ECHNICAL RACTICE PG-PLUS PLL-734 LIST SYNC MARGIN BYPASS FAULT POTS1 POTS2 2 POTS ENTRAL FFICE Model List CLEI Code PLL-734 S9L1APBA~~ SCP-PLL734-020-03H ECTION...
  • Page 2 Information furnished by ADC is believed to be accurate and reliable. In no event shall ADC be liable for any damages resulting from the loss of data, loss of use, or loss of profits and ADC further disclaims any and all liability for indirect, incidental, special, consequential or other similar damages.
  • Page 3 • Unpack each container and visually inspect the contents for signs of damage. If the equipment has been damaged in transit, immediately report the extent of damage to the transportation company and to ADC. Order replacement equipment, if necessary. •...
  • Page 4 Inspecting Your Shipment SCP-PLL734-020-03H January 6, 2003 PLL-734 List 2...

  • Page 5: Table Of Contents

    SCP-PLL734-020-03H ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 Description and Features........................1 HDSL Transmission ......................1 Metallic Fallback .........................2 Power Consumption and Heat Dissipation ................2 Monitoring, History, and Diagnostics .................3 Performance Parameters ......................3 Alarms ..........................3 Alarm Types ........................4 History ..........................4 Specifications .............................5 LED Descriptions..........................6 Installation and Test___________________________________________________________________ 8 Required Tools and Test Equipment....................8 Installing the COLU...........................8...
  • Page 6 SCP-PLL734-020-03H HDSL Options Screen....................... 43 HDSL A and B Alarm Thresholds Screen ................ 46 HDSL A and B Alarm Types Screen ................49 Set Factory Defaults Screen ....................53 Test Submenu ..........................54 Information Submenu........................57 COLU Inventory Screen ....................58 RTs Inventory Screen......................
  • Page 7 SCP-PLL734-020-03H IST OF IGURES 1. Typical PG-Plus Application...........................1 2. LED on Front Panel............................6 3. Craft Port to Terminal Connections ......................11 4. Craft Port to Modem Connections.........................11 5. Menu Tree ..............................20 PLL-734 List 2 January 6, 2003...
  • Page 8 SCP-PLL734-020-03H January 6, 2003 PLL-734 List 2...
  • Page 9 SCP-PLL734-020-03H IST OF ABLES 1. HDSL Distances ..............................2 2. Power Consumption and Heat Dissipation.......................2 3. LED Descriptions ............................7 4. Modem Settings.............................12 5. COLU Menu Bar Selections..........................19 6. System Status..............................22 7. HDSL Alarms..............................35 8. System Options Configuration Fields ......................39 9. System Alarm Types .............................42 10.
  • Page 10 SCP-PLL734-020-03H January 6, 2003 PLL-734 List 2...

  • Page 11: Overview

    HDSL line to the RT is operated at the minimum rate to support the payload. HDSL Transmission The PAU-710 uses ADC’s HDSL 2B1Q technology to transport 2 DS0s, plus signalling, over one copper pair to each RT. The HDSL circuits can be used without pair selection. Adaptive equalization, scrambling, and a four-level 2B1Q line coding scheme are used to maximize distance and minimize crosstalk.

  • Page 12: Metallic Fallback

    Description and Features SCP-PLL734-020-03H Table 1. HDSL Distances HDSL Distance (6 dB Margin / 46.4 dB Loss / 33 Analog Impedence Wire Gauge Ω kHz) (900 26 AWG 6.3 kft 18.0 kft (0.40 mm) (1.9 km) (2.8 km) 24 AWG 10.2 kft 25.5 kft (0.51 mm)

  • Page 13: Monitoring, History, And Diagnostics

    SCP-PLL734-020-03H Description and Features Monitoring, History, and Diagnostics The COLU provides real-time, nondisruptive monitoring of HDSL transmission performance parameters for all units in a circuit. You can set threshold values for the performance monitoring measurements at the appropriate COLU screen. Alarms are activated at the designated threshold setting. The user interface ports performance is also monitored.

  • Page 14: Alarm Types

    Description and Features SCP-PLL734-020-03H • The COLU cannot power the RTs due to a short circuit. • The COLU cannot power the RTs due to HDSL Tip or Ring Fault to GND. • LOSW If the alarm is on the COLU, then the COLU cannot synchronize with the A or B RT, then both the COLU and the A or B RT are out of service.

  • Page 15: Specifications

    SCP-PLL734-020-03H Specifications PECIFICATIONS System Line Interface two-pair, 130 Kbps 2B1Q transmission format Resistive Signature 162 K Tip to Ground; 453 K Ring to Ground Power Supply Input Voltage -42 Vdc to -56.5 Vdc HDSL Line Output Voltage + 140 Vdc (maximum) Output Power 27 W (maximum) HDSL Line Code...

  • Page 16: Led Descriptions

    LED Descriptions SCP-PLL734-020-03H LED D ESCRIPTIONS Table 3 describes the LEDs shown on the front panel, where n equals the POTS line. If you have installed two RTs then both LED columns light in the manner described. PG-PLUS PLL-734 LIST SYNC Status LEDs MARGIN...

  • Page 17: Led Descriptions

    SCP-PLL734-020-03H LED Descriptions Table 3. LED Descriptions Color State Description Green On, all other LEDs flashing at 1 Hz Running in Boot Mode due to invalid Application Program. On, POTSn LEDs On, all other LEDs Active software download of the COLU. running downward at 1 Hz On, POTSn LEDs On, all other LEDs Active software download of the RT connected to the...

  • Page 18: Installation And Test

    Required Tools and Test Equipment SCP-PLL734-020-03H NSTALLATION AND Observe normal electrostatic discharge precautions when handling electronic equipment. Do not hold electronic plugs by their edge. Do not touch components or circuitry. The following procedure assumes that an RT is installed in the system and all wiring between the CO and the RT has been completed and verified.

  • Page 19: Initialization Sequence

    SCP-PLL734-020-03H Initialization Sequence NITIALIZATION EQUENCE The COLU continuously attempts to power up the RTs until end-to-end HDSL synchronization is established. If the COLU is unable to establish synchronization, it powers down the loops and waits 5 minutes before re-trying. The COLU initialization and power up sequence described below assumes that the HDSL and auxiliary power pairs are wired from the COTS and terminated at the RTs.

  • Page 20: Subscriber Drop Tests

    Subscriber Drop Tests SCP-PLL734-020-03H – The COLU detects, and is able to synchronize with, an RTs: Within 1 minute, the SYNC LED remains on and the COLU establishes synchronized HDSL communications with the RTs. Assuming the HDSL margins are above alarm thresholds, and there are no subscriber drop tests or other alarms or faults in the system, the COLU LEDs are in the following states: PWR is on...

  • Page 21: Administration

    SCP-PLL734-020-03H Connecting to a Terminal or Modem DMINISTRATION With a VT-100 terminal, you can access the craft port of the PMU or the PAU to review system administration functions, such as alarm checking and clearing, configuration changes, performance monitoring, and testing the PG-Plus through the craft terminal screens.

  • Page 22: Modem Settings

    Connecting to a Terminal or Modem SCP-PLL734-020-03H The craft port supports a VT-100 terminal. The VT-100 terminal allows real time updating of information displayed on the screen, rather than requiring the technician to press the key to refresh the screen. ENTER Configure the VT-100 terminal as shown in Table...

  • Page 23: Navigational Methods

    Passwords are not case sensitive. Passwords must use at least 6, and no more than 10, printable characters, and must contain at least 1 alpha, 1 numeric, and 1 special character. If the password has been changed and you do not know the new password, contact ADC Technical Support (see “Technical Support”...
  • Page 24 Logging On SCP-PLL734-020-03H The ADC banner displays briefly. ADC Technologies Then the PMU or PAU main menu screen displays: January 6, 2003 PLL-734 List 2...
  • Page 25 SCP-PLL734-020-03H Logging On If you know the slot number in which the COLU is installed, go to the next step. If you do not know the slot number: From the PMU or PAU main screen select Main, and press to view the submenu. ENTER Select Shelf Summary and press to display the inventory of the COLUs installed in the COTS.
  • Page 26 Logging On SCP-PLL734-020-03H From the PMU or PAU main screen, select the menu option Select and press to view the COTS slot ENTER list. The number of slots shown in the Select submenu depend on the size of the PG-Plus COTS; the number is 12 for the 18-inch shelf, and 16 for the 23-inch shelf.

  • Page 27: Logging Off

    At the Current Session will be Logged Out. Continue (Y/N)? prompt, you have the following options: To continue with the logout, type and press ENTER To terminate the logout and return to the screens, press . The ADC banner displays. Press to return to the main screen. PLL-734 List 2 January 6, 2003...

  • Page 28: Colu Main Screen

    COLU Main Screen SCP-PLL734-020-03H COLU M CREEN The main screen provides access to the PAU-710 functions through the menu items. The date and times displayed are the default values for the system. The date and time for the COTS is set from the PMU or PAU. To change the date and time to the local date and time, use the Date and Time option on the CONFIG menu option.

  • Page 29: Colu Menu Bar Selections

    SCP-PLL734-020-03H COLU Main Screen COLU Menu Bar Selections Table 5 describes the submenus that can be selected from the COLU menu bar. Press the underlined key to go directly to the selected menu bar item. Table 5. COLU Menu Bar Selections Submenu To View or Change...

  • Page 30: Colu Menu Structure

    COLU Main Screen SCP-PLL734-020-03H COLU Menu Structure Figure 5 illustrates the menu structure of the COLU. Figure 5. Menu Tree January 6, 2003 PLL-734 List 2...

  • Page 31: Main Summary Screen

    SCP-PLL734-020-03H COLU Main Screen Main Summary Screen This screen details the performance condition of the COLU and RT. Table 6 defines the conditions that appear in the Channel and HDSL Status fields. At the COLU main screen, select MAIN and press to view the Summary screen.
  • Page 32 COLU Main Screen SCP-PLL734-020-03H Table 6. System Status State Description System Status IN SYNC The payload is synchronized between the COLU and RT. OUT OF SYNC The payload is not synchronized between the COLU and RT. HDSL Status HDSL LINK DOWN HDSL link is down and System is not in Metallic Fallback.

  • Page 33: Performance Submenu

    SCP-PLL734-020-03H Performance Submenu ERFORMANCE UBMENU These screens provide access to the COLU HDSL performance screens. In the following screens you may see the A Remote Terminal, the B Remote Terminal, or both the A and B Remote Terminals screens shown as examples. The screen contents are identical. However, in a working system, the values displayed on the HDSL A screens may differ from the HDSL B screens.

  • Page 34: Hdsl A Or B Summary Screen

    Performance Submenu SCP-PLL734-020-03H HDSL A or B Summary Screen This screen depicts an HDSL performance summary in terms of the margin and UAS and ES count, insertion loss, and the Tip and Ring connection state. Use the available options to reset the minimum and maximum margin counts.
  • Page 35 SCP-PLL734-020-03H Performance Submenu You can perform the following tasks: To reset the minimum and maximum margins to the current margin values for the COLU, press at the RESET MIN/MAX MARGIN COUNTS(Y/N)? prompt. At the HDSL MIN/MAX MARGINS WILL BE RESET. CONTINUE(Y/N)? prompt, you have the following options: •...

  • Page 36: Hdsl A And B 24-Hour History Screen

    Performance Submenu SCP-PLL734-020-03H HDSL A and B 24-Hour History Screen This screen shows the previous 24-hours of HDSL performance history in 15-minute intervals. The performance history data displayed includes ES counts, UAS counts, and the validity of the counts. In the following screens you may see the A Remote Terminal, the B Remote Terminal, or both the A and B Remote Terminals screens shown as examples.
  • Page 37 SCP-PLL734-020-03H Performance Submenu You can perform the following tasks: To scroll through all intervals, select either PAGE HISTORY FORWARD PAGE HISTORY BACKWARD and press ENTER To clear the history, select and press . At the HDSL 24 HOUR HISTORY CLEAR HISTORY ENTER WILL BE CLEARED.

  • Page 38: Hdsl 7-Day History Screen

    Performance Submenu SCP-PLL734-020-03H HDSL 7-day History Screen This screen displays the last seven days of performance history, plus the current day’s accumulated performance information of the COLU and the two RTs. The information displayed includes ES counts, UAS counts, and the validity of the values.
  • Page 39 SCP-PLL734-020-03H Performance Submenu You can perform the following tasks: To clear the 7-day history information, at the CLEAR HDSL 7 DAY HISTORY (Y)? prompt, type . At the HDSL 7 DAY HISTORY WILL BE CLEARED. CONTINUE(Y/N)? prompt, you have the following options: Clearing the 7-day performance history does not clear the current day performance information.

  • Page 40: Alarms Submenu

    Alarms Submenu SCP-PLL734-020-03H LARMS UBMENU The Alarms submenu provides access to the alarms status and system related alarmed events. Only events provisioned for Critical, Major, or Minor notification are reported From the COLU main screen, select ALARMS, and press to view the submenu. ENTER From the ALARMS submenu you can perform the following tasks: Submenu...

  • Page 41: System History Screen

    SCP-PLL734-020-03H Alarms Submenu System History Screen This screen shows the system alarm history. It contains a count of the number of times each alarm occurred, the time and date of the first and last occurrence, the provisioned notification type, and the current status. At this screen you see the results of the alarms set at the Configuration “System Alarm Types Screen”...
  • Page 42 Alarms Submenu SCP-PLL734-020-03H You can perform the following tasks: To clear the history information, at the CLEAR SYSTEM ALARM HISTORY(Y) prompt, type . At the SYSTEM ALARM HISTORY WILL BE CLEARED. CONTINUE (Y/N)? prompt, you have the following options: • To clear the system history, press .

  • Page 43: Hdsl History Screen

    SCP-PLL734-020-03H Alarms Submenu HDSL History Screen This screen displays the HDSL history maintained on the COLU. It contains a count of the number of times each alarm occurred, the time and date of the first and last occurrence, the provisioned notification type, and the current status.
  • Page 44 Alarms Submenu SCP-PLL734-020-03H You can perform the following tasks: To clear the alarm history information, at the CLEAR HDSL-A ALARM HISTORY(Y)? prompt, type . At the HDSL ALARM HISTORY WILL BE CLEARED. CONTINUE (Y/N)? prompt, you have the following options: •...

  • Page 45: Hdsl Alarms

    SCP-PLL734-020-03H Alarms Submenu Table 7. HDSL Alarms Alarm Values Alarm Description Default COLU HDSL LOSW CR, MJ, MN, NA, COLU cannot synchronize with the RT and is out of service COLU HDSL ES 15 MIN THRESH CR, MJ, MN, NA, HDSL 15-minute errored second alarm threshold reached or exceeded COLU HDSL ES 24HR THRESH...

  • Page 46: Configuration Submenu

    Configuration Submenu SCP-PLL734-020-03H ONFIGURATION UBMENU The Configuration submenu provides access to system provisioning screens, and an easy means of resetting all options to factory defaults. From the COLU main screen, select CONFIG, and press to view the submenu. ENTER From the CONFIG submenu you can perform the following tasks: Submenu Allows you to ...

  • Page 47: System Options Screen

    SCP-PLL734-020-03H Configuration Submenu System Options Screen This screen allows the provisioning of options such as ringing frequency, SDT, and a System ID. Table 8 shows the configured system option and the factory default value. From the CONFIG submenu, select System Options and press to view the screen.
  • Page 48 Configuration Submenu SCP-PLL734-020-03H To change the PG-Plus System ID, move to the field and type in a unique System ID name. To accept the changes, select the button, and press . At the ACCEPT SYSTEM OPTION CHANGES ENTER SYTEM OPTIONS WILL BE CHANGED. CONTINUE (Y/N)? prompt, you have the following options: •...

  • Page 49: System Options Configuration Fields

    SCP-PLL734-020-03H Configuration Submenu Table 8. System Options Configuration Fields Option Value Description Default POTS Ringing Frequency 20 Hz The ringing frequency sent from the 20 Hz 25 Hz RT to the subscriber. 30 Hz 50 Hz. Subscriber Drop Test Compatibility System will not initiate nor operate with MLT loop test systems.

  • Page 50: System Alarm Types Screen

    Configuration Submenu SCP-PLL734-020-03H System Alarm Types Screen This screen allows the provisioning of the types of all system alarms. Table 9 shows the System Alarm fields and the default settings. You can view the results of these settings from the “System History Screen”...
  • Page 51 SCP-PLL734-020-03H Configuration Submenu • To accept the changes, select the button, and press ACCEPT SYSTEM ALARM TYPE CHANGES At the SYTEM ALARM TYPES WILL BE CHANGED. CONTINUE (Y/N)? prompt, you ENTER have the following options: – To accept the system alarm type changes, press .

  • Page 52: System Alarm Types

    Configuration Submenu SCP-PLL734-020-03H Table 9. System Alarm Types Alarm Value Description Default COLU-RT A Mismatch NR, NA, MN, MJ, CR Incompatible COLU and RT units have been installed. For (MISMATCHA) example, a Dual 2 POTS COLU has been connected to a 2 ISDN RT.

  • Page 53: Hdsl Options Screen

    SCP-PLL734-020-03H Configuration Submenu HDSL Options Screen Allows the provisioning of HDSL options such as Periodic Power Up and Metallic Fallback. Table 10 shows the configured system option for both A and B RTs. From the CONFIG submenu, select HDSL Options and press to view the screen.
  • Page 54 Configuration Submenu SCP-PLL734-020-03H To accept the changes, select the button, and press . At ACCEPT CHANNEL OPTION CHANGES ENTER the CHANNEL OPTIONS WILL BE CHANGED. CONTINUE(Y/N)? prompt, you have the following options: • To change the threshold values, press . All current values are set to the desired values. •...
  • Page 55 SCP-PLL734-020-03H Configuration Submenu Table 10. HDSL Options Configuration Fields Option Values Description Default HDSL-A Power Up ENABLED When ENABLED, PG-Plus attempts to power up the HDSL line ENABLED every 5 minutes or anytime the HDSL pair is shorted for 3 seconds and then opened.

  • Page 56: Hdsl A And B Alarm Thresholds Screen

    Configuration Submenu SCP-PLL734-020-03H HDSL A and B Alarm Thresholds Screen Provides a means to provision the threshold crossing values for the15 minute and 24-hour ES and UAS counts and low margin dB for both A and B RTs. In the following screens you may see the A Remote Terminal, B Remote Terminal, or both A and B Remote Terminals screens as an example.
  • Page 57 SCP-PLL734-020-03H Configuration Submenu To set the low margin threshold for the RT, select the Low Margin (MAR) field in the RT ALARM column, and type in the desired value. THRESHOLD Select the button, and press . At the HDSL ACCEPT HDSL ALARM THRESHOLD CHANGES ENTER ALARM THRESHOLDS WILL BE CHANGED.
  • Page 58 Configuration Submenu SCP-PLL734-020-03H Table 11. HDSL Alarm Thresholds Threshold Values Description Default Errored Seconds (ES 15 Min) 0 to 900 Value for the HDSL 15 minute interval ES alarm. Errored Seconds (ES 24 Hr ) 0 to 86400 Value for the HDSL 24 hour interval ES alarm. Unavailable Seconds (UAS 15 0 to 900 Threshold value for the HDSL 15 minute interval UAS alarm.

  • Page 59: Hdsl A And B Alarm Types Screen

    SCP-PLL734-020-03H Configuration Submenu HDSL A and B Alarm Types Screen This screen allows the provisioning of the alarm types for all HDSL Alarms for both A and B RTs. In the following screen you may see the A Remote Terminal, B Remote Terminal, or both A and B Remote Terminals screens as an example.
  • Page 60 Configuration Submenu SCP-PLL734-020-03H To change the value of the RT alarm Unavailable Seconds (UAS 24 Hr), select the field in the RT TYPE column, press the to toggle to the desired value, or press a directional key to move to the next SPACEBAR option To change the value of the COLU alarm Low Margin (MAR), select the field in the...

  • Page 61: Alarm Reports

    SCP-PLL734-020-03H Configuration Submenu • To accept the changes to the alarm types, press . A message confirms that the HDSL Alarm Types have been changed. • To retain the current alarm types, press • To return to the screen, press Press to return to the main screen.

  • Page 62: Hdsl Alarm Types

    Configuration Submenu SCP-PLL734-020-03H Table 13. HDSL Alarm Types COLU Type Values Description Default Default Loss of Sync Word (LOSW) NR, NA, MN, MJ, CR HDSL link has lost synchronization. Errored Seconds (ES -15 Min) NR, NA, MN, MJ, CR Active if the 15 minute ES count equals or exceeds the threshold in the current 15 minute interval.

  • Page 63: Set Factory Defaults Screen

    SCP-PLL734-020-03H Configuration Submenu Set Factory Defaults Screen This screen allows setting all configuration data back to factory default values. From the CONFIG submenu, select Set Factory Defaults line and press ENTER If you have custom factory defaults, then these custom defaults will be restored if you select Set Factory Defaults.

  • Page 64: Test Submenu

    Test Submenu SCP-PLL734-020-03H To retain the configuration data values, press To return to the screen, press Press to return to the main screen. UBMENU This screen allows testing of a subscriber drop by selecting it from the TEST menu. The relays in the COLU and RT provide a path for performing a SDT.
  • Page 65 SCP-PLL734-020-03H Test Submenu You can perform the following tasks: To test a circuit, select the desired circuit and press ENTER The message POTS-1A CHOSEN FOR TEST. CALLS IN PROGRESS ON TEST CIRCUIT WILL BE is displayed. To continue with the test, press at the CONTINUE WITH TEST (Y/N)? TERMINATED prompt.
  • Page 66 Test Submenu SCP-PLL734-020-03H • A POTS-1A TEST IN PROGRESS MESSAGE displays on the screen: When tests are completed, the SDT results screen displays. If a test fails, the remaining tests are not performed (as per TR-909). It takes approximately 7 to 8 seconds for all tests co complete. •...

  • Page 67: Information Submenu

    SCP-PLL734-020-03H Information Submenu NFORMATION UBMENU The Information submenu provides access to the technical information about the system and contact information for this product. From the COLU main screen, select INFO and press to display the submenu. ENTER From the INFO submenu you can perform the following tasks: Submenu Allows you to ...

  • Page 68: Colu Inventory Screen

    Information Submenu SCP-PLL734-020-03H COLU Inventory Screen This screen displays product identification information, manufacturing data, software versions, and the hardware revisions for the COLU. From the INFO submenu, select Inventory COLU and press ENTER Press to return to the main screen. RTs Inventory Screen This screen displays product identification information, manufacturing data, software versions, and the hardware revisions for the RTs.

  • Page 69: Colu Event Log

    SCP-PLL734-020-03H Information Submenu COLU Event Log This screen provides information on events that occurred but are not Alarmed events. The two Events that can be logged are: From the INFO submenu, select Event Log and press to view the screen: ENTER Table 14.
  • Page 70 Information Submenu SCP-PLL734-020-03H You can perform the following tasks: To clear the alarm history information, at the CLEAR EVENT LOG HISTORY(Y) prompt, type . At the EVENT LOG HISTORY WILL BE CLEARED. CONTINUE (Y/N)? prompt, you have the following options: •...

  • Page 71: Rt Event Log

    SCP-PLL734-020-03H Information Submenu RT Event Log This screen provides information on events that occurred but are not alarmed (see Table 15). From the INFO submenu, select RT Event Logs and press ENTER Table 15. RT Event Log Event Description Action Required MEMVER A provisioning database conversion occurred when a software download No customer action is required.
  • Page 72 Information Submenu SCP-PLL734-020-03H You can perform the following tasks: To clear the alarm history information, at the CLEAR HDSLn ALARM HISTORY(Y) prompt, type At the EVENT LOG HISTORY WILL BE CLEARED. CONTINUE (Y/N)? prompt, you have the following options: • To clear the history, press .

  • Page 73: Help Screen

    SCP-PLL734-020-03H Information Submenu Help Screen This screen provides navigational methods for moving about the screens. From the INFO submenu, select Help and press ENTER Press to return to the main screen. PLL-734 List 2 January 6, 2003...

  • Page 74: Fault Isolation

    COLU and RT Fault Indicators SCP-PLL734-020-03H AULT SOLATION COLU RT F AULT NDICATORS At the CO, you can use the VT-100 terminal to initiate a SDT to determine the cause of any of the following problems. At the customer site, the following sections provide procedures for isolating faults, based on subscriber reports (see Table 16).

  • Page 75: Subscriber Reported Faults

    SCP-PLL734-020-03H Subscriber Reported Faults UBSCRIBER EPORTED AULTS At the CO, you can use the craft terminal to initiate a SDT to determine the cause of any of the following problems (see Table 17). The SDT test performs Hazardous Potential, Foreign Voltage, Resistive Faults, Receiver Off-Hook, and Ringers Tests.
  • Page 76 Subscriber Reported Faults SCP-PLL734-020-03H Table 17. Subscriber Reported Faults Conditions Causes Procedures Cannot hear, subscriber problem 1 Open the RJ-11 test jack at the RT. If audible level is acceptable, the cannot be heard problem is with subscriber equipment. faulty COLU or RT 2 If audible level is too low at the RT with the RJ-11 test jack lifted, lift the jumper in the CO between the CO switch and the COTS.

  • Page 77: Product Support

    ADC’s Return Material Authorization (RMA) Department. Call or write ADC’s RMA Department to ask for an RMA number and any additional instructions. Use the telephone number, fax number or email address listed below: •...
  • Page 78 If there is another reason for returning the equipment, please let us know so we can determine how best to help you. Pack the equipment in a shipping carton. Write ADC’s address and the RMA Number you received from the RMA Department clearly on the outside of the carton and return to: ADC DSL Systems, Inc.

  • Page 79: Fcc Classa Compliance

    The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by ADC voids the user's warranty. All wiring external to the product(s) should follow the provisions of the current edition of the National Electrical Code.

  • Page 80: Acronyms

    Modifications SCP-PLL734-020-03H CRONYMS 2B1Q 2 Binary, 1 Quarternary; A line code in which each 2 bits of the binary data stream are combined into a single symbol of the quaternary line signal. Alarm Cut-Off American Wire Gauge Bit Error Ratio Controlled Environment Vault Central Office COLU...
  • Page 81 SCP-PLL734-020-03H Modifications PLL-734 List 2 January 6, 2003...
  • Page 82 World Headquarters: ADC Telecommunications, Inc. 12501 Whitewater Drive Minnetonka, Minnesota USA 55343 For Technical Assistance: 800.366.3891 ´,So¶38¨ 1251793...

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