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ADC H2TU-C-202 User Manual

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U
M
SER
ANUAL
H2TU-C-202 List 2F Line Unit
Product Catalog: H2TU-C-202-L2F
CLEI: VACHZW8G

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  • Page 1 ANUAL H2TU-C-202 List 2F Line Unit Product Catalog: H2TU-C-202-L2F CLEI: VACHZW8G...
  • Page 2 Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior notice. In no event shall ADC be liable for any damages resulting from 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 Upon receipt of the equipment: • Unpack each container and 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 Shipment LTPH-UM-1072-03 October 25, 2002 H2TU-C-202 List 2F...

  • Page 5: Table Of Contents

    Alarm History at the DS1 Interface ...................39 Alarm History at the HDSL2 Interface................41 Using the System Event Log to Track Events .................42 Origin Tags ........................43 Event Log Messages ......................44 Using the Sectionalized Event Log to Isolate Trouble ..............45 H2TU-C-202 List 2F October 25, 2002...
  • Page 6 Power Consumption ........................63 Maximum Power Dissipation ......................63 Maximum Current Drain ......................... 63 Loop Attenuation and Insertion Loss ....................64 H2TU-C-202 Card-Edge Connector....................64 Network Management Control Bus .................. 65 Fuse Alarm ........................65 System Alarm Output Pins....................65 Craft Port ............................
  • Page 7 LTPH-UM-1072-03 List of Figures IST OF IGURES 1. H2TU-C-202 List 2F Front Panel........................3 2. Installing the H2TU-C-202 Into a Shelf ......................7 3. Logon Screen..............................11 4. Config Menu - Date and Time........................12 5. Inventory Screen.............................13 6. Config Menu..............................14 7. Config Menu - Standard Options (defaults shown)..................15 8.
  • Page 8 3. Navigational Keys for the Maintenance Terminal Screens ................10 4. Logon Screen Menus ............................ 11 5. H2TU-C-202 Standard Config Menu Options....................16 6. H2TU-C-202 ADC Config Menu Options ....................17 7. DS1/DSX-1 24-Hour PM Threshold ......................20 8. Response to H2TU-R DS1 Frame Conversion Options ................22 9.

  • Page 9: Overview

    VERVIEW ™ The H2TU-C-202 List 2F line unit is the Central Office (CO) side of a T1 transmission system. The HiGain HDSL2 product family is fully compliant with the HDSL2 standard ANSI T1.418-2000. Providing full rate T1 access using just a single copper pair, HDSL2 is a cost-effective solution that offers an open architecture. The open architecture inherent in HDSL2 guarantees interoperability allowing simple and economic accommodation of network growth.

  • Page 10: Compatibility

    DS1 is used throughout this document to refer to either the remote unit’s DS1 interface or the line unit’s DSX-1 interface. OMPATIBILITY The H2TU-C-202 List 2F is designed to mount in 200 and 400 mechanics, high-density shelves. For a list of compatible shelves, see “Appendix C - Compatibility” on page...

  • Page 11: Front Panel

    LTPH-UM-1072-03 Front Panel RONT ANEL Figure 1 shows the H2TU-C-202 List 2F front panel. Table 1 on page 4 describes the front-panel components. For pinout diagram of the H2TU-C card-edge connector, see Figure 35 on page 64. For a pinout diagram of the craft...
  • Page 12 CLEI and ECI bar code label Provides the human-readable Common Language Equipment Identifier (CLEI) code number and the Equipment Catalog Item (ECI) bar code number. Extraction handle Handle used to remove the H2TU-C from the enclosure. October 25, 2002 H2TU-C-202 List 2F...

  • Page 13: Front-Panel Display Messages

    DSX-1 signal is looped back to the network at the H2TU-R. RULB Remote Unit Loopback Dual loopback at the H2TU-R. SMJK Remote SmartJack Loopback DSX-1 signal is looped back to the network at the H2TU-R SmartJack module. Continued H2TU-C-202 List 2F October 25, 2002...
  • Page 14 Current margin threshold setting is measured in dB. VER x.xx Software Version Number Software version number of the H2TU-C-202. (a) System information messages are displayed in Scroll mode. To scroll through the messages, press the MODE pushbutton for 3 or more seconds.

  • Page 15: Installation

    CO Shelf Figure 2. Installing the H2TU-C-202 Into a Shelf When installing an H2TU-C-202 List 2F in a chassis, be sure to wear an antistatic wrist strap. Avoid touching components on the circuit board. To comply with the intrabuilding wiring requirements of GR-1089 CORE, Section 4.5.9, the shields of the ABAM-type cables that connect the H2TU-C-202 DSX-1 output ports to the cross-connect panel must be grounded at both ends.

  • Page 16: Verification

    Installation LTPH-UM-1072-03 ERIFICATION Once the H2TU-C-202 List 2F is installed, verify that it is operating properly. To do this, monitor the following: • Status LED • Status messages reported by the front-panel display. Table 2 on page 5 describes the messages.

  • Page 17: Provisioning

    To provision the H2TU-C, access the provisioning screens through a maintenance terminal. EVIEWING YSTEM ETTINGS To scroll through the current settings of all system parameters, press the MODE pushbutton for 3 or more seconds. The H2TU-C-202 displays the following parameters: • Software version number • List number •...

  • Page 18: Logon Screen

    (a) Legacy management units require use of control keys instead of arrow keys. Most VT100 emulation programs support a print screen option. For Windows-based programs, such as Procomm or HyperTerminal, see the Help menu for instructions. October 25, 2002 H2TU-C-202 List 2F...

  • Page 19: Logon Screen

    Selecting this menu after a remote logon displays the Sectionalized Event Log for the H2TU-R. See Figure 28 on page Config Provides standard configuration options, ADC options, date and time setting, and a reset option (factory settings). Also provides a master clear option that clears all performance, alarm, and event log entries. Inventory Provides product information about the various devices that are in the system and lists circuit and device identifications.

  • Page 20: Provisioning Tasks

    Provisioning LTPH-UM-1072-03 ROVISIONING ASKS After the H2TU-C-202 is successfully installed, perform these basic provisioning tasks: • Set date and time (see “Setting Date and Time” below). • Set circuit ID numbers (see “Setting Circuit ID Numbers” on page 13). •...

  • Page 21: Setting Circuit Id Numbers

    Figure 5. Inventory Screen Press to select the Inventory screen. Type the Circuit ID number, then press ENTER Type the ID numbers of all other devices listed in the system, pressing after each entry. ENTER H2TU-C-202 List 2F October 25, 2002...

  • Page 22: Configuring The System

    Standard and ADC configuration options. Standard options are those that are supported by HiGain HDSL2 units when connected to units from other vendors. ADC options are an extended set of options available only when using HiGain units exclusively. For a description of each option and...
  • Page 23 | H2TU-R DS1 Frame Conversion (CONV) : ACON | +-----------------------------------------------+ Use <Spacebar> to cycle through option settings and <Enter> to activate ID: xxxx—-xxxx—-xxxx--xxxx 05/15/2001 12:30:01 H2TU-C System: OK___ Figure 8. Config Menu - ADC Options (defaults shown) H2TU-C-202 List 2F October 25, 2002...
  • Page 24 Table 5 below describes the Standard Config menu options and Table 6 on page 17 describes the ADC Config menu options. Bold type indicates the factory default settings. Table 5. H2TU-C-202 Standard Config Menu Options Front-Panel Standard Config Display Selection...
  • Page 25 LTPH-UM-1072-03 Provisioning Table 5. H2TU-C-202 Standard Config Menu Options (Continued) Front-Panel Standard Config Display Selection Description Menu Options Code H2TU-R TLOS TLOS Enables a logic loopback at the H2TU-R when an LOS occurs at its DS1 input, if Loopback enabled at the H2TU-R. For priority resolution, see Figure 31 on page Disables Transmit Loss of Signal (TLOS) logic loopback.
  • Page 26 Provisioning LTPH-UM-1072-03 Table 6. H2TU-C-202 ADC Config Menu Options (Continued) Front-Panel ADC Config Display Selection Description Menu Options Code Special Loopback SPLB GNLB Configures the HiGain HDSL2 system to respond to the generic inband loopback Mode codes. A1LB and Configures the HiGain HDSL2 system to respond to the inband loopback codes A2LB of the Westell addressable repeater.
  • Page 27 Alarm Pattern (ALMP) Option. To improve HiGain HDSL2 compatibility with the switch-to-protect features used in Digital Loop Carrier (DLC) feeder applications, the H2TU-C-202 List 2F has an ALMP option that allows you to select either an AIS or LOS DS1 output payload for the following alarms: •...
  • Page 28 Once initiated, the HBER count clears when the CRC count drops below the selected threshold. Selecting NONE inhibits this alarm. RAI to RAI-CI toward NET (RACI). The H2TU-C-202 in conjunction with the H2TU-R-402 List 4F supports the RAI-CI function. The RAI-CI signal is a RAI signal which contains a signature indicating that an LOF or AIS failure has occurred in the customer installation (CI) at the H2TU-R unit and that the defect or failure which caused the origination of that RAI is not found in the signal from the network.
  • Page 29 ACON and FCON settings for the CONV option. The responses are identical, except in cases 3 and 4. In these cases, the FCON reply is attempting to force the network or the far end PM-NIU to H2TU-C-202 List 2F October 25, 2002...

  • Page 30: Extended Superframe Format

    ESF ← SF Table 9. Extended SuperFrame Format Frame Bits Framing Pattern Frame Bit for Datalink Cyclical Redundancy ESF Number Sequence (FPS) - 2 kb/s (FDL) - 4 kb/s Check (CRC) Bits - 2 kb/s October 25, 2002 H2TU-C-202 List 2F...
  • Page 31 Terminal Framing Bit SuperFrame Signaling Bit AIS-CI (Alarm Indication Signal-Customer Installation). The H2TU-C-202 in conjunction with the H2TU-R-402 List 4F supports the AIS-CI function. AIS-CI is a variant of AIS which is transmitted toward the network when either an AIS defect or an LOS defect has been detected in the signal received from the CI at the H2TU-R unit.

  • Page 32: Resetting To Factory Defaults

    Provisioning LTPH-UM-1072-03 Resetting to Factory Defaults Resetting the H2TU-C to its original factory settings may cause interruption of service. To reset the H2TU-C-202 to its original factory defaults: Press to select the Config menu. Use the arrow keys to select Set Factory Defaults, then press ENTER ↑...

  • Page 33: Clearing The History, Alarm, And Event Log Screens

    To clear ALL history, alarm, and event log screens by this method: Press to select the Config screen. Use the arrow keys to select Master Clear. ↑ ↓ Press to clear all screens. H2TU-C-202 List 2F October 25, 2002...

  • Page 34: Monitoring System Activity And Performance

    When installed on one end of an HDSL2 DS1 circuit, the remote unit provides the following special network benefits: • Real-time performance monitoring of DS1 signals in both directions of transmission • Non-intrusive access to real-time performance monitoring data (CPE-provided SF or ESF signal) October 25, 2002 H2TU-C-202 List 2F...

  • Page 35: Payload Retrieval Of Margin And Loop Attenuation Parameters

    If the HDSL2 loop is down, LOSW, a response corresponding to a margin of 5 or less and loop attenuation of 0 to 25, will be sent. This command is a permanent feature of the List 2F and cannot be disabled. H2TU-C-202 List 2F October 25, 2002...

  • Page 36: Using The Monitor Screen To View System Activity

    NLOC - Loopback H2TU-C towards Network and <Enter> to activate (LPDN,NLOC,CREM,NREM,CLOC) ID: xxxx--xxxx--xxxx—-xxxx 05/15/2001 12:30:01 H2TU-C System: Alarm HDSL2 Errors Active Loopback System Status Code and Frame Type Figure 12. Monitor Screen - Active Loopback with Alarms October 25, 2002 H2TU-C-202 List 2F...
  • Page 37 The presence or absence of an alarm condition is indicated on the lower right corner of all screens. System: OK indicates that there are no alarms present; System: Alarm indicates the presence of an alarm. Refer to “Using the Performance Screens to View Performance Data” on page 30 detailed alarm information. H2TU-C-202 List 2F October 25, 2002...

  • Page 38: Using The Performance Screens To View Performance Data

    DS1 performance history screens at the line unit. Refer to Table 13 on page 33 for descriptions of the errors reported on DS1 interface screens. Asterisks indicate performance monitoring from the previous day. October 25, 2002 H2TU-C-202 List 2F...
  • Page 39 Press: (N)ext Page, (P)revious Page, C(l)ear History ------------------------------------------------------------------------------ Use <Space> to cycle through Interface H2TU-C DS1 choices and <Enter> to view Statistics : 48 Hour History ID: xxxx--xxxx--xxxx—-xxxx 05/15/2001 12:30:01 H2TU-C System: OK___ Figure 14. H2TU-C DS1 48-Hour Performance History H2TU-C-202 List 2F October 25, 2002...

  • Page 40: H2Tu-R Ds1 Current Statistics

    Press: C(l)ear Current Statistics ------------------------------------------------------------------------------ Use <Space> to cycle through Interface H2TU-R DS1 choices and <Enter> to view Statistics : Current ID: xxxx--xxxx--xxxx--xxxx 05/15/2001 12:30:01 H2TU-R System: OK___ Figure 16. H2TU-R DS1 Current Statistics October 25, 2002 H2TU-C-202 List 2F...

  • Page 41: H2Tu-C Ds1 Current Statistics

    (c) Severely Errored Frame—Two or more frame bit errors occurring in a 0.75 ms interval for SF or a 3 ms interval for ESF. (d) Only appears on the H2TU-R Blockage Indicator (BI) History screen. (e) FE is a frame bit error. H2TU-C-202 List 2F October 25, 2002...

  • Page 42: Blockage Indicator Statistics At The H2Tu-R Ds1 Interface

    Unavailable Seconds or line unavailability is declared at the onset of 10 contiguous SES. For the line, including HDSL loops, to become available, there must be a minimum period of 10 seconds which are free of SES. October 25, 2002 H2TU-C-202 List 2F...

  • Page 43: Performance History At The Hdsl2 Interface

    ----------------------------------------------------------------------------- Use <Space> to cycle through Interface : H2TU-C HDSL2 choices and <Enter> to view Statistics : 48 Hour History ID: xxxx--xxxx--xxxx—-xxxx 05/15/2001 12:30:01 H2TU-C System: OK___ Figure 20. H2TU-C HDSL2 48-Hour Performance History H2TU-C-202 List 2F October 25, 2002...

  • Page 44: H2Tu-C Hdsl2 25-Hour Performance History

    Press: C(l)ear Current Statistics ------------------------------------------------------------------------------ Use <Space> to cycle through Interface H2TU-C HDSL2 choices and <Enter> to view Statistics : Current ID: xxxx--xxxx--xxxx--xxxx 05/15/2001 12:30:01 H2TU-C System: OK___ Figure 22. H2TU-C HDSL2 Current Statistics October 25, 2002 H2TU-C-202 List 2F...
  • Page 45 Seconds with HDSL2 CRC ≥ 1 or LOSW ≥ 1 Severely Errored Seconds Seconds with HDSL2 CRC ≥ 50 or LOSW ≥ 1 Unavailable Seconds Based on 10 contiguous SES occurrences LOSWS Loss of Sync Word Second Seconds with LOSW ≥ 1 H2TU-C-202 List 2F October 25, 2002...

  • Page 46: Blockage Indicator Statistics At The H2Tu-R Hdsl2 Interface

    10 seconds which are free of SES. For information on blockage indicator statistics at the DS1 interface, see “Blockage Indicator Statistics at the H2TU-R DS1 Interface” on page October 25, 2002 H2TU-C-202 List 2F...

  • Page 47: Using The Performance Screens To View Alarm Data

    Press: C(l)ear Alarm History ----------------------------------------------------------------------------- Use <Space> to cycle through Interface H2TU-C DS1 choices and <Enter> to view Statistics : Alarm History ID: xxxx--xxxx--xxxx—-xxxx 05/15/2001 12:30:01 H2TU-C System: Alarm Figure 24. H2TU-C DS1 Alarm History Screen H2TU-C-202 List 2F October 25, 2002...

  • Page 48: H2Tu-R Ds1 Alarm History Screen

    (b) AIS-CI is a modified AIS alarm pattern. Equipment not suited to detect AIS-CI still detects this signal as an AIS. AIS-CI is sent toward the network indicating that an LOS (RLOS) or AIS (RAIS) has been received from the CPE. October 25, 2002 H2TU-C-202 List 2F...

  • Page 49: Alarm History At The Hdsl2 Interface

    SHORT PWR FEED SHRT Indicates a short between the Tip and Ring of the HDSL2 pair. PWR FEED GND The HDSL2 loop is grounded. OPEN PWR FEED OPEN Indicates a line power open condition. H2TU-C-202 List 2F October 25, 2002...

  • Page 50: Using The System Event Log To Track Events

    DS1 LOS Alarm: Begin RU Craft Port 05/16/01 17:50:25 Event Log Reset Press: (N)ext Page, (P)revious Page, (T)op of Log, C(l)ear Log ID: xxxx-xxxx-xxxx-xxxx 05/15/2001 10:06:46 H2TU-C System: OK Figure 27. System Event Log Screen October 25, 2002 H2TU-C-202 List 2F...

  • Page 51: Origin Tags

    Remote Unit Indicates that the alarm occurred at the remote unit. Line Unit Indicates that the alarm occurred at the line unit. LOSW, SHORT, GND, and OPEN are always tagged as line unit alarms. H2TU-C-202 List 2F October 25, 2002...

  • Page 52: Event Log Messages

    NTWK PRM-FE BER alarm (at the remote only: 1-day threshold crossed of PRM-FE: trouble on NTWK far end) NTWK DS1 AIS begins/ends Power Feed Open begins/ends Power Feed Short begins/ends RAI begins/ends TX RAI-CI begins/ends (RAI-CI sent from the remote towards the network) October 25, 2002 H2TU-C-202 List 2F...

  • Page 53: Using The Sectionalized Event Log To Isolate Trouble

    05/11/01 20:14 05/12/01 20:14 NOT SECT 05/13/01 20:14 05/14/01 20:14 NOT SECT Press: (N)ext Page, (P)revious Page, (T)op of Log, C(l)ear Log ID: xxxx--xxxx--xxxx--xxxx 05/15/2001 01:35:52 H2TU-R System: Alarm Figure 28. Sectionalized Event Log Screen H2TU-C-202 List 2F October 25, 2002...

  • Page 54: Sectionalized Events

    Inferred ES. PRM received from CPE has any of G1 through G5 set, LV, or FE set. NOT SECT Cannot be sectionalized; no PRM received from the CPE. PRM received from CPE has no errors. (a) An inferred failure or error condition displays in reverse video on the monitor. October 25, 2002 H2TU-C-202 List 2F...

  • Page 55: Using The Report Menu

    Report Type : Full Report Please select report type by pressing <Space>, then start terminal logging and press <Enter> to generate the report. ID: xxxx—-xxxx—-xxxx--xxxx 05/15/2001 12:30:01 H2TU-C System: Figure 30. Report Menu - Full Report H2TU-C-202 List 2F October 25, 2002...

  • Page 56: Report Types

    • System configuration • Current performance statistics System Information Report • Circuit and unit identifications • Product information • System configuration Event Report • Circuit and unit identifications • Product information • System event log October 25, 2002 H2TU-C-202 List 2F...

  • Page 57: Testing

    The HDSL2 BER has exceeded the set threshold Select NONE for the HBER limits of 10 or 10 . xxx denotes either TUC or system option. TUR. If TUC and TUR occur at the same time, then TUC displays. Continued H2TU-C-202 List 2F October 25, 2002...

  • Page 58: Alarm Option For Digital Loop Carrier Feed

    (c) Only these alarms assert the System Alarm bus on pins 30 and 22 of the card-edge connector if the ALM option is enabled. (d) When the HDSL2 loop loses sync word (LOSW), a system alarm condition exists. However, since the H2TU-C-202 List 2F...

  • Page 59: Remote Los And Ais Response

    The OCT55 test pattern can be used in unframed mode to stress the system and verify data integrity without creating any line errors. When a framed OCT55 test pattern is used, excessive zero anomalies may occur which cause the H2TU-C to report ES, SES, and UAS errors according to ANSI T1.202-1997. H2TU-C-202 List 2F October 25, 2002...

  • Page 60: Loopback Operation

    • Maintenance Terminal NLOC CREM SMJK CLOC • Test Set • Test Set TLOS H2TU-C H2TU-R Customer Network Premises Figure 32. Loopback Summary HiGain HDSL2 supports multiple loopbacks, but a single loopback is the preferred method. October 25, 2002 H2TU-C-202 List 2F...

  • Page 61: Generic Loopback Commands

    2-in-5 inband command. NREM, on the other hand, is initiated by the 3-in-7 inband command, or by a command issued from the maintenance terminal. Use the inband commands to enable or disable the SMJK loopback options. The H2TU-C-202 system setting is normally enabled to recognize all inband SmartJack loopback commands.

  • Page 62: Special Loopback Commands

    A2LB. A5LB differs from A2LB in that A5LB does not block the arming code from exiting the H2TU-C-202 List 2F into the network. A1LB and A2LB can be configured to do one of the following: •...

  • Page 63: Manual Loopback Session

    Press LBK to activate the selected loopback. The previous loopback is terminated. Once a loopback is selected and activated, the loopback stays active until it times out (based on the LBTO setting). When a loopback times out, the display returns to the normal display mode. H2TU-C-202 List 2F October 25, 2002...

  • Page 64: Loopback Test Procedures

    Have the CO tester transmit a DS1 test signal toward the H2TU-C and verify that the returned (looped) signal to the test set is error-free. If step 2 fails, have the CO tester transmit the 3-in-5 inband loopdown code. October 25, 2002 H2TU-C-202 List 2F...

  • Page 65: Loopback Modes

    * Set the NLBP option to AIS to send AIS (indicated by an all ones pattern) for any network loopback. A3LB and A4LB loopback codes. ‡ A1LB, A2LB, and A5LB loopback codes. GNLB loopback codes. Figure 33. Loopback Modes H2TU-C-202 List 2F October 25, 2002...

  • Page 66: A1Lb, A2Lb, And A5Lb Test Procedures

    HDSL2 system returns to its normal unlooped and unarmed state. For information regarding the 16-bit DBDB command for retrieving information on the circuit’s margin and loop attenuation, see “Payload Retrieval of Margin and Loop Attenuation Parameters” on page October 25, 2002 H2TU-C-202 List 2F...
  • Page 67 If the system is to loop down but remain Armed, send the IR LPDN code. • If all the equipment is to be looped down, disarmed, and returned to normal operation, send the disarm inband code 11100 or the ESF-DL code (FF24). H2TU-C-202 List 2F October 25, 2002...

  • Page 68: A3Lb And A4Lb Test Procedures

    120. A3LB and A4LB Test Procedures The H2TU-C-202 List 2F can be looped back by sending the Addressable Office Repeater (AOR) LPBK activation code 1111-1111-0001-1110 (FF1E) for at least 5 seconds. This causes the H2TU-C to enter the NLOC state.

  • Page 69: Testing With The H2Tu-R Signal Generator

    2 pseudo random, 1:7 pattern, 2:8 pattern, 3:24 pattern Test Signal Linecode AMI or B8ZS Test Signal Direction Toward CPE or toward NET & CPE only Test Signal Framing SF, ESF, UNFR H2TU-C-202 List 2F October 25, 2002...

  • Page 70: Appendix A - Specifications

    0 to 655 feet of ABAM cable Input Level +1.5 to -7.5 dB DSX System One-way DS1 Delay < 400 µs Wander (Looped) Meets MTIE DS1.101 requirements Wideband Jitter (Looped) 0.2 UI maximum Narrowband Jitter (Looped) 0.1 UI maximum October 25, 2002 H2TU-C-202 List 2F...

  • Page 71: Power Consumption

    The maximum current drain is the maximum current drawn from the shelf power supply when it is at its minimum voltage (-42.5 ). This determines the shelf fusing requirements. Use the -42.5 Vdc current data in Table 26 above to determine the shelf fusing requirements for your H2TU-C applications. H2TU-C-202 List 2F October 25, 2002...

  • Page 72: Loop Attenuation And Insertion Loss

    2.18 19/0.91 mm 1.54 (a) Insertion Loss = 1.25 times loop attenuation H2TU-C-202 C ONNECTOR Figure 35 shows the card-edge connector on the H2TU-C-202. Active pins are highlighted in black. Ring HDSL2 Span Ring 1 Management bus DSX-1-RCV Tip 1...

  • Page 73: Network Management Control Bus

    ADC Management System protocols to manage the H2TU-C through the HMU-319 HiGain Management Unit. Some H2TU-C-202 List 2F features are affected when it is under management control. Consult the management unit practice for further information. See “Appendix D - Product Support” on...

  • Page 74: Appendix B - Functional Operation

    1.552 kbps data channels between the H2TU-C-202 List 2F and a remotely located H2TU-R. Figure 37 shows a block diagram of the H2TU-C-202 List 2F. The H2TU-C-202 List 2F receives a 1.544 Mbps DSX-1 data stream from the DSX-1 digital cross-connect interface. The H2TU-C contains a DS1 frame synchronizer controlled by an 8-bit microprocessor that determines the type of framing on the DS1 stream.

  • Page 75: Appendixc - Compatibility

    ANSI T1.418-2000 HDSL2 standards. HiGain HDSL2 complies with GR-63-CORE, TR-TSY-000499, and GR-1089-CORE. OMPATIBLE HELVES AND NCLOSURES The H2TU-C-202 List 2F is compatible with the following 200 and 400 mechanics, high-density shelf enclosures: • Indoor enclosures – HiGain Remote Enclosure HRE-425 (12-slot) –...

  • Page 76: Appendix D - Product Support

    UPPORT ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products. Technical support is available 24 hours a day, 7 days a week by contacting the ADC Technical Assistance Center. • Quotation Proposals Sales Assistance •...

  • Page 77: Appendix E - Abbreviations

    LBPV: Local Bipolar Violation Datalink LED: Light Emitting Diodes DLC: Digital Loop Carrier LLOS: Line (Unit) Loss of Signal DSX-1: Digital Signal Cross-Connect, Level 1 LOS: Loss of Signal LOSW: Loss of Sync Word H2TU-C-202 List 2F October 25, 2002...
  • Page 78 Plain Old Telephone Service PRM: Performance Report Messaging PRM-FE: Performance Report Messaging - Far End PRM-NE: Performance Report Messaging - Near End RAI-CI: Remote Alarm Indication-Customer Installation RAIS: Remote Alarm Indication Signal RDA: Remote Disconnect Alarm October 25, 2002 H2TU-C-202 List 2F...

  • Page 79: Certification And Warranty

    ODIFICATIONS Any changes or modifications made to this device that are not expressly approved by ADC DSL Systems, Inc. voids the user's warranty. All wiring external to the products should follow the provisions of the current edition of the National Electrical Code.
  • Page 80 ADC DSL Systems, Inc. 14402 Franklin Avenue Tustin, CA 92780-7013 Tel: 714.832.9922 Fax: 714.832.9924 Technical Assistance Tel: 800.638.0031 Tel: 714.730.3222 Fax: 714.730.2400 : LTPH-UM-1072-03 OCUMENT ´,Qƶ4£¨ 1249004...

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