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® HTU-C using Narrowband/Wideband for Litespan ® Installation and Maintenance Practice Document Number: 61247002L1-5A CLEI: SLL7AAAA_ _ March 2008...
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In no event will ADTRAN be liable for any special, incidental, or consequential damages or for commercial losses even if ADTRAN has been advised thereof as a result of issue of this document.
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Revision History Revision Date Description March 2008 Initial release Conventions The following typographical conventions are used in this document: This font indicates a cross-reference link. indicates screen menus, fields, and parameters. This font indicates keyboard keys ( ). Keys that are to be pressed simultaneously HIS FONT NTER are shown with a plus sign (...
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HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Training ADTRAN offers training courses on our products. These courses include overviews on product features and functions while covering applications of ADTRAN product lines. ADTRAN provides a variety of training options, including customized training and courses taught at our facilities or at customer sites.
HTU-C using Narrowband/ Wideband for Litespan GENERAL This practice is an installation and maintenance guide for the ADTRAN HTU-C using Narrowband/Wideband for Litespan (HTU-C NB/WB for Litespan). The HTU-C NB/WB for Litespan (P/N 1247002L1) front panel is illustrated in Figure Figure 1.
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice DESCRIPTION The HTU-C NB/WB for Litespan is a DS1 interface unit that provides full T1 service over 4-wire interface facilities. The HTU-C NB/WB for Litespan combines ADTRAN HDSL technology and Alcatel-Lucent Litespan technology to provide an HDSL interface to a Litespan system.
Low Voltage HTU-R T400 x = any generic number The HTU-C NB/WB for Litespan can be deployed in circuits consisting of one HTU-C and one HTU-R. When deployment requires the HRE, which doubles the service range, the HTU-C NB/ WB for Litespan can be deployed with one Low Voltage HRE and one Low Voltage HTU-R.
• HTU-C using Narrowband/Wideband for Litespan Compliance Notice (P/N 61247002L1-17) Compliance The HTU-C NB/WB for Litespan is NRTL Listed to the applicable UL standards for Continuous Use in –40°C to +50°C environmental conditions. Care should be exercised when handling equipment when temperatures at these extremes exist, as surfaces could be very cold or hot.
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1. This device may not cause harmful interference 2. This device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by ADTRAN could void the user’s authority to operate this equipment. WARNING Voltages up to –200 VDC with respect to ground may be present on...
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice NOTE The HTU-C NB/WB for Litespan is designed to operate with a nominal operating voltage of –48 VDC and a minimum operating voltage of –40 VDC. The HTU-C NB/WB for Litespan is not damaged by any steady state voltage below –56.7 VDC.
APPLICATIONS The ADTRAN HDSL system provides a cost-effective alternative for deploying T1 service over metallic cable pairs. In contrast with traditional T1 service equipment, ADTRAN HDSL can be successfully deployed over two unconditioned, non-loaded, bridged-tapped copper pair CSA loops (refer to “HDSL Deployment Guidelines”...
After unpacking the HTU-C NB/WB for Litespan, inspect it for damage. If damage has occurred, file a claim with the carrier, then contact ADTRAN Customer Service. If possible, keep the original shipping container for returning the unit for repair or for verification of shipping damage.
J1, Row A J1, Row B J1, Row C Surge Ground Frame Ground Frame Ground Frame Ground Tip 1 Narrowband Test Bus for Loop 1 (tip) Test Bus for Loop 1 (ring) Ring 1 Narrowband Test Bus for Loop 2 (tip) Tip 2 Narrowband Test Bus for Loop 2 (ring) Ring 2 Narrowband...
HTU-C NB/WB for Litespan and another line card in the asynchronous T1 line card class or another HTU-C NB/WB for Litespan. If the cross- connected unit is not an HTU-C, then T1 provisioning of the cross-connected unit can be accomplished through the Litespan craft interface port.
Control Port Operation CONTROL PORT OPERATION The HTU-C NB/WB for Litespan provides a front panel-mounted female DB-9 connector that supplies an RS-232 interface for connection to a controlling terminal. The pinout of the DB-9 is illustrated in Figure 5. The line card must be provisioned through the control port. Switches or jumpers are not provided.
• Screen Abbreviations Menu Structure The HTU-C NB/WB for Litespan uses a layered menu tree. Each layer of the menu tree is displayed as a menu or a screen. Menu A menu is a display that provides numbered selections that are used to navigate to related menus, modify provisioning information, or display information screens.
User Interface Screen Abbreviations For abbreviations used in the screen diagrams, see Table Table 5. Screen Abbreviations Abbreviation Definition Errored Seconds • DSX/DS1 – SF: Second in which a BPV or frame bit error occurs – ESF: Second in which a BPV or CRC error occurs •...
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice MENU DESCRIPTIONS The following subsections describe the HTU-C NB/WB for Litespan menu screens. Initiate a terminal session by entering multiple space bar characters, which determines the speed of the terminal. Once the speed has been determined, an Introductory menu appears.
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Menu Descriptions Table 6. HTU-C NB/WB for Litespan Main Menu Option Description Function Current System Status This option displays the “Current System Status Screen” on page 16. Performance History This option displays the “Performance History Screen” page 18. Adtran Information This option displays the “Unit Information Screen”...
HDSL, DSX-1, and DS1 interfaces. A key to the information provided is found in the center of the screen. Arrows indicate the key applies to both the HTU-C NB/WB for Litespan and HTU-R. Table 7 gives detailed definitions of each indicator of the key.
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Menu Descriptions An indication of pair reversal (if present) appears at the bottom of the first key column. Status and configuration information for the DS1 and DSX-1 signals are located in the center of the screen near the bottom. Table 8 gives the definitions of the status and configuration key items.
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Performance History Screen The Performance History screen is shown in Figure 8. At each 15-minute interval, the perfor- mance information is transferred to the 15-minute performance data register accessed from the Performance History screen. This unit supports the display of performance information in 15-minute increments for the last 24-hour period.
Menu Descriptions Unit Information Screen The ADTRAN Unit Information screen is illustrated in Figure 9. The screen lists serial number, CLEI code, and manufacturing date for every unit in the HDSL circuit. CIRCUIT ID: MM/DD/YY hh:mm:ss ADTRAN 901 Explorer Boulevard...
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Self-Test Screen The Self-Test screen is illustrated in Figure 11. On this screen, press " " to initiate a self-test, and press " " to return the Main Menu. CIRCUIT ID: MM/DD/YY hh:mm:ss SELF-TEST Press “S”...
- to return to the main menu Figure 12. Provisioning Menu The HTU-C NB/WB for Litespan stores its provisioning information in an EEPROM so that it remembers the past provisioning changes to determine its operating mode in the event of power loss to the HTU-C NB/WB for Litespan.
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Troubleshooting Display Screen The Troubleshooting Display screen, illustrated in Figure 13, graphically depicts an HDSL circuit. The unit reviews red, yellow, and blue alarm conditions in the circuit to automatically predict where a fault is located. Once a fault location is suspected, the corresponding portion of the circuit on the screen is highlighted and a message describing the failure appears.
LP1 MRGN LP2 MRGN Press: C to clear history : M for main menu Figure 14. Alarm History Screen The HTU-C NB/WB for Litespan DB-9 control port screen alarms are presented on the following screens: • Alarm History Screen •...
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AID,EQPT:MJ,FAIL,SA The access identifier (CBA slot) The HTU-C NB/WB for Litespan is has a major service-affecting unable to operate normally or has equipment failure. failed a diagnostic test. Refer to the “Troubleshooting”...
Menu Descriptions Time/Date/Circuit ID Menu Use the Time/Date/Circuit ID menu in Figure 15 to set the time, date, and circuit ID. CIRCUIT ID: MM/DD/YY hh:mm:ss SET TIME/DATE/CIRCUIT ID 1) SET TIME 2) SET DATE 3) SET CIRCUIT ID Choose an option by pressing the corresponding number. Press “M”...
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Terminal Modes Screen The Terminal Modes screen in Figure 17 defines the two different terminal modes, Manual Update and Real Time Update. Press “ ” to toggle between the two terminal modes. CIRCUIT ID: MM/DD/YY hh:mm:ss TERMINAL MODES MENU...
HDSL Deployment Guidelines HDSL DEPLOYMENT GUIDELINES The ADTRAN HDSL system is designed to provide DS1-based services over loops designed to comply with carrier service area (CSA) guidelines. CSA deployment guidelines are given below. • All loops are nonloaded only. • For loops with 26-AWG cable, the maximum loop length including bridged tap lengths is 9 kft.
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HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Loop loss per kft for other wire is summarized in Table Table 11. HDSL Loss Values Loop Loss per kft. Cable Gauge Cable Type 68° 90° 120° 3.902 4.051 4.253 Pulp 4.030 4.179 4.381...
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–7 BER. When deploying any of the HTU-C NB/WB for Litespans, the power requirements for the application should also be considered for product mix calculations and maximum number of HTU-C NB/WB for Litespans within a channel bank assembly. Use Worksheet PW-1 in the Engineering and planning section of Alcatel-Lucent practice, OSP TL1 software documen- tation release 7.1, or higher to determine whether a particular combination of channel units...
The FAIL LED remains on. 1. Verify that the channel bank or ONU BPS FAIL LEDs are off. 2. Verify that the equipment type for the HTU-C NB/WB for Litespan slot is AHT1U. Using TL1, equipment type is shown with the com- mand rtrv-eqpt::AID, where AID is the access identifier (i.e., cot-1-15).
MAINTENANCE The HTU-C NB/WB for Litespan requires no routine maintenance for normal operation. ADTRAN does not recommend that repairs be attempted in the field. Repair services may be obtained by returning the defective unit to ADTRAN. Refer to the“Appendix B, Warranty”...
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HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Table 16. HTU-C NB/WB for Litespan Specifications (Continued) Specification Description Physical Mounting: Litespan 2000 CBA, Litespan 2012 CBA, or an ONU CBA 4.42 in. high × 0.84 in. wide × 10.4 in. deep Dimensions: (11.22 cm ×...
Appendix A HDSL Loopbacks HDSL MAINTENANCE MODES This Appendix describes operation of the HDSL system with regard to detection of in-band and ESF facility data link loopback codes. Upon deactivation of a loopback, the HDSL system will synchronize automatically. Note that the synchronization process of the HDSL system upon deactivation of the HRE loopback could take up to 15 seconds, ensuring all system elements are synchronized.
HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Loopback Control Codes A summary of control sequences is given in Table A-1 and Table A-2. NOTE In all control code sequences presented, the in-band codes are shown left-most bit transmitted first, and the ESF data link codes with right-most bit transmitted first.
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Appendix A, HDSL Loopbacks - HDSL MAINTENANCE MODES Table A-1. HDSL Loopback Control Codes (Continued) Name Source Code (Hex / Binary) (2,3) Wescom (Continued) Customer 3F06/ Loopback data from customer toward customer at HRE 2 0011 1111 0000 0110 Network FF02/ Loopback data from network toward network at HTU-R 1111 1111 0000 0010...
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HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice Table A-2. In-Band Addressable Loopback Codes Function Code (Hex / Binary) Response 11000 (binary) The HTU-R will loop up toward the network. No AIS or (also known errors will be sent as a result of this loopback. The as a 2-in-5 HTU-C and HRE will arm.
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Appendix A, HDSL Loopbacks - HDSL MAINTENANCE MODES Table A-2. In-Band Addressable Loopback Codes (Continued) Function Code (Hex / Binary) Response Query D5D5/ If the units are armed and the HTU-C, HRE, or HTU-R Loopback 1101 0101 1101 0101 are in network loopback, errors are injected into the DSX-1 signal upon detection of the query loopback pattern.
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HTU-C using Narrowband/Wideband for Litespan Installation and Maintenance Practice This page is intentionally blank. 61247002L1-5A...
Appendix B Warranty WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within the warranty period if it does not meet its published specifications or fails while in service. Warranty information can be found at www.adtran.com/warranty. Refer to the following subsections for sales, support, Customer and Product Service (CAPS) requests, or further information.
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® Carrier Networks Division 901 Explorer Blvd. Huntsville, AL 35806...
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