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ADC H2TU-C-388 User's Manual

1. USER MANUAL H2TU C 388 List 1 Line Unit Part Number 150 2406 01 CLEI VACHKWOC 152 388 100 02 Issue 2 Revision History of This Manual Revision Release Date Revisions Made 01 June 6 2000 Initial release 02 Jaunary 18 2002 ADC rebranding Copyright Jaunary 18 2002 2002 ADC DSL Systems Inc All rights reserved Trademark Information ADC is a registered trademark of ADC Telecommunications Inc HiGain is a registered trademark of ADC DSL Systems Inc No right license or interest to such trademarks is granted hereunder and you agree that no such right license or interest shall be asserted by you with respect to such trademark Other product names mentioned in this practice are used for identification purposes only and may be trademarks or registered trademarks of their respective companies Disclaimer of Liability Information contained in this document is company private to ADC DSL Systems Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent of ADC Contents herein are current as of the date of publication ADC reserves the right to change the contents without prior notice Inno 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 This disclaimer of liability
2. Press this key To access this menu Menu Functions M Monitor Monitors loopbacks and alarms and provides a graphical representation of circuit activity including ES UAS SES and line code P Performance Provides performance and alarm histories for current 25 hour 48 hour or 31 day periods for either the DS1 or HDSL2 interface E Event Log Identifies the 100 most recent system events and reports the date and time of occurrence C Config Provides standard configuration options ADC options date and time setting and a reset option factory settings I Inventory Provides product information about the various devices that are in the system and lists circuit and device identifications R Rlogon Rlogout Remote logon can be performed from the H2TU C or H2TU R The screen displays Rlogout when the H2TU C or H2TU R is remotely logged on to the other unit at the end of the circuit To log off the remote unit press R Rlogout changes to Rlogon The unit is now locally logged on until R is pressed again to reinitiate the remote logon H Help Provides a glossary of terms used in the HiGain HDSL2 maintenance screens a list of navigational keys and ADC contact information 12 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning PROVISIONING TASKS After the HiGain Line Unit is successfully installed perform these basic provisioning tasks 1 Set the date and time see Setting Date and Ti
3. e DS1 is used throughout this document to refer to either the remote unit s DS1 interface or the 4 line unit s DSX 1 interface COMPATIBILITY The H2TU C 388 List 1 is designed to mount in DDM high density shelves For a list of compatible shelves see Appendix C Compatibility on page 53 APPLICATIONS HiGain systems provide a cost effective easy to deploy method for delivering DS 1 High Capacity Digital Service HCDS over a single copper pair HiGain systems support a multitude of network connections and system models The service is deployed over one unconditioned non loaded copper pair e With HiGain conventional inline DS1 repeaters are no longer required e Cable pair conditioning pair separation and bridged tap removal are not required Each loop has no more than 35 dB of loss at 196 kHz with driving and terminating impedances of 135 In general HiGain systems e Operate effectively in the same cable binder group with other HDSL2 lines HDSL DS1 ADSL SDSL POTS Digital Data Service DDS and other transmission schemes e Can be used with customers requiring DS1 service on a temporary or permanent basis e Provide a means of quickly deploying service in advance of fiber optic transmission systems 2 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 FRONT PANEL Front Panel Figure 1 shows the H2TU C 388 List 1 front panel Table 1 on page 4 describes the front panel components For a list
4. General Troubleshooting Tips If trouble is encountered on the DSX 1 interface of the H2TU C 388 verify that the e H2TU C is making a positive connection with its mounting assembly shelf connector e H2TU C internal equalizer is set to the correct distance range per Table 5 on page 17 All equalizers should be set to the distance from the DSX 1 to the shelf The transmit and receive DSX 1 ports have splitting access jacks and miniature 210 series monitor jacks as shown in Figure 1 on page 3 Connecting one cable between the two monitoring jacks and another between the two LINE jacks splits the IN and OUT and creates metallic loopbacks towards both the DSX 1 and the H2TU C 388 If separate plugs are inserted into both LINE jacks with the other end disconnected the MON jacks can be used to send and receive test patterns towards the DSX 1 GNLB Test Procedures Figure 27 on page 44 is a graphical representation of the various loopback configurations with the associated GNLB commands shown Also refer to Table 15 on page 40 for a description of these commands To perform the GNLB loopback test procedure 1 Have the CO tester send the NREM 3 in 7 inband loopup code for 5 seconds You should be able to observe the NREM message on the front panel display The Status LED on the front panel should be green and the loopback mode should also be identified on the Span Status screen 2 Have the CO tester transmit a DS1 test signal towards the
5. SmartJack Loopback LPBK ENA Enables the HiGain system to recognize all inband SmartJack SMJK loopback commands DIS Configures the HiGain system to ignore all inband SmartJack loopback commands Continued June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning Table 6 HiGain Line Unit List 1 ADC Config Screen Options Continued ADC Config Screen Screen Selection Description Options Display Code Remote Disconnect RDA ENA Enables a remote DS1 LOS condition at the input to the H2TU R to generate Alarm an LOS alarm AIS or LOS depending on ALMP is sent towards the network DIS Prevents a remote DS1 LOS condition at the input to the H2TU R from causing an LOS alarm The front panel Status LED still flashes red and the ALRM RLOS message displays The LOS is sent towards the network from the H2TU C instead of AIS HDSL2 BER Threshold HBER Option The HBER option permits monitoring of loop integrity and reporting of alarms when excessive errors are detected The PM primitive used for this purpose is the CRC checksum performed on the HDSL2 frame for both directions of transmission It is therefore called a block error rate rather than the bit error rate associated with the DS1 interface The CRC errors and counts display on the Monitor screen for both the H2TU C and H2TU R The HBER option allows an alarm to be generated if the total number of CRCs at either the H2TU C or H2TU R exceeds the selected BER threshol
6. Monitor Performance Event Log Inventory Rlogon Help Standard Options gt PairGain Options gt Date and Time gt J Master Clear _1 Set Factory Defaults Clear ALL performance alarm and event log entries Are you sure Y N ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 System OK Figure 10 Master Clear To clear the Event Log type E to select the Event Log screen then type E to clear the screen To clear an individual history or alarm screen do the following 1 Type P to select the Performance screen 2 Press the SPACEBAR to select either interface H2TU C DS1 H2TU R DS1 H2TU C HDSL2 or H2TU R HDSL2 then press ENTER 3 Press the SPACEBAR to select the type of statistics Current Alarm History 25 Hour History 48 Hour History or 31 Day History and press ENTER after your selection Selecting 31 Day History allows you to clear the Current 25 hour 48 hour and 31 day performance history screens for the selected interface Selecting Alarm History allows you to clear the alarm history screen for the selected interface For information about the DS1 and HDSL2 Alarm screens see Table 11 on page 32 4 Type L to clear the screen To clear ALL history alarm and event log screens by this method 1 Type C to select the Config screen 2 Select Master Clear 3 Type Y to clear all screens H2TU C 388 List 1 June 6 2000 21 Monitoring System Activity and Performance 1
7. Option The HiGain Line Unit improves compatibility with Digital Loop Carrier DLC feeder applications because of its ability to transmit DS1 BPV occurrences between its DS1 interfaces This feature is required to support protection switching in DLC applications Each DLC terminal must be able to monitor the integrity of its Receive DS1 payload and then switch to the protect line when the integrity of the path drops below specific user selected limits An essential requirement of this feature is the need for each DLC terminal to detect BPVs in its DS1 input Standard HDSL systems correct DS1 BPVs at the input and therefore prevent them from being detected by the DLC terminals to which they are connected The HiGain Line Unit and its associated remote units remove this limitation and become BPV transparent by detecting and counting input BPVs at each end and then by replicating them at the DS1 output port of the distant end The BPV count is converted into BPVs at the distant end during the following second at a rate of 1 BPV every 128 DS1 bits up to a maximum of 12000 BER 7 7 x 103 This maximum rate is more than adequate since it exceeds the maximum 103 BER required by most DLC systems H2TU C 388 List 1 June 6 2000 19 Provisioning 152 388 100 02 Issue 2 DS1 BER DBER Option The DS1 BER alarm occurs when any of the DS1 or DSX 1 performance monitoring parameters listed in Table 7 exceed the counts shown for the 24 hour period between 12 00 00 A
8. adc com Quotation Proposals Ordering and Delivery General Product Information Complete Solutions from concept to installation Network Design and Integration Testing System Turn Up and Testing Network Monitoring upstream or downstream Power Monitoring and Remote Surveillance Service Maintenance Agreements Systems Operation Technical Information System Network Configuration Product Specification and Application Training product specific Installation and Operation Assistance Troubleshooting and Repair Field Assistance www adc com Knowledge_Base index jsp www adc com library1 ADC Return Material Authorization RMA number and instructions must be obtained before returning products All 800 lines are toll free in the USA and Canada 54 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Appendix E Abbreviations APPENDIX E ABBREVIATIONS A ACO Alarm Cutoff AIS Alarm Indication Signal ALM Alarm AMI Alternate Mark Inversion AWG American Wire Gauge B8ZS Bipolar with 8 Zero Substitution B8ZSS B8ZS Monitored Seconds BER Bit Error Rate BPV Bipolar Violation BPVT Bipolar Violation Transparency Cl Customer Installation CLEI Common Language Equipment Identifier CLOC Customer Local Loopback CO Central Office CPE Customer Premises Equipment CRC Cyclical Redundancy Check CREM Customer Remote Loopback CSA Carrier Service Area CV Code Violation DBER DG Bit
9. indicating that the system is armed or is a steady yellow indicating that it is both armed and in SMJK loopback The H2TU C Status LED also flashes yellow when the system is armed e If the Arming code is not returned after 5 seconds the system may be armed but there is no active loopback H2TU C 388 List 1 June 6 2000 45 Testing 152 388 100 02 Issue 2 Once armed the H2TU C 388 can be looped back by sending Intelligent Office Repeater TOR LPBK activation code 1101 0011 1101 0011 D3D3 for at least 5 seconds You should observe the following activation response pattern in the order presented a 2 seconds of AIS all ones pattern b 2 seconds of returning data pattern c Logic errors including the frame bit occurring in the returned pattern comprising 231 errors if IOR LPBK H2TU C 388 was sent 20 errors if ILR 2 H2TU R was sent d normal looped data This error pattern repeats every 20 seconds as long as the IOR loopback pattern is being sent This also applies to ILR Time out Override and Query commands The H2TU C is now in logic loopback if the IOR NLOC loopback command was sent The Time out Override command or a Loopdown command can override the selection made for the loopback time out see Setting the Loopback Time out Option on page 42 If the Time out Override code 1101 0101 1101 0110 DSD6 is received after activating a loopback then the automatic timed expiration of the loopback is
10. 552 kbps data channels between the H2TU C 388 List 1 and a remotely located H2TU R Figure 30 shows a block diagram of the H2TU C 388 List 1 The H2TU C 388 List 1 receives a 1 544 Mbps DSX 1 data stream from the DSX 1 digital cross connect interface The H2TU C 388 contains a DS1 frame synchronizer controlled by an 8 bit microprocessor that determines the type of framing on the DS1 stream and synchronizes to it The H2TU C 388 recognizes Superframe SF including D4 or Extended Superframe ESF EQUALIZER framing HDSL2 TI Framer FRAMER SELECT 104 Management Bus 185Vdc HDSL LineVoltage MICROPROCESSOR Power Supply Ground Isolated and Ground Fault Detect Ring DSX 1 IN 110 koo 109 Tip FrameGND lt 119 114 DSX 1 OUT 115 48Vdc 217 POWER SUPPLY GND218 118 MODE SEL LEDS RS 232 front panel Figure 30 H2TU C 388 List 1 Block Diagram TIMING The low loop wander 0 5 UI max of an H2TU C 388 when used with a compatible remote unit allows the circuit to be used in all critical timing applications including those that are used to transport Stratum 1 timing GROUND FAULT DETECT The H2TU C 388 has a Ground Fault Detect GFD circuit which detects a ground or a resistive path to ground on any wire of the HDSL2 loop This makes the product compliant with the Class A2 requirements of GR 1089 52 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Appe
11. C 388 List 1 is installed verify that it is operating properly To do this monitor the following e Status LED e Status messages reported by the front panel display see Table 2 on page 5 Verification without a Downstream Device If there is no downstream device installed 1 Verify that the H2TU C powers up The front panel display illuminates and reports status messages See Table 2 on page 5 for a list of messages 2 Verify that the H2TU C attempts to communicate with downstream devices status LED flashes red Even if a downstream device is not present the following events should occur a The front panel display reports various four character status messages b The H2TU C again attempts communication with downstream devices until a downstream device is detected Verification with a Downstream Device If a downstream device has been installed 1 Verify that the H2TU C powers up The front panel display illuminates and reports various status messages 2 Verify that the H2TU C attempts to communicate with downstream devices status LED flashes red One of the following occurs Ifdownstream devices are successfully identified and the HDSL2 loop synchronizes the H2TU C status LED lights steady green The H2TU C reports normal margin messages on the front panel display If downstream devices are not successfully identified the H2TU C reports four character status messages The H2TU C attempts communication again and r
12. DS1 Alarm Register reset System 04 15 00 225 HDSL2 Alarm Register Reset System 04 15 00 225 DS1 Performance Register Reset System 04 15 00 7255 HDSL2 Performance Register Reset System 04 15 00 Toe Time set 12 25 00 System 04 15 00 Loe Date set 04 15 00 H2TU C 04 03 00 132 LOC Loop down H2TU C 04 03 00 sil LOC Loop up H2TU R 04 03 00 10 DS1 LOS Alarm End H2TU R 04 03 00 ELO DS1 LOS Alarm Begin System 04 03 00 04 DS1C AUTO to AMI H2TU C 04 03 00 HDSL2 LOSW Alarm End H2TU C 04 03 00 00 HDSL2 LOSW Alarm Begin Empty Empty Press N ext Page P revious Page T op of Log XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C System OK Figure 24 System Event Log 34 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance Table 13 Event Log Entry Messages List Event Log Messages Any DS1 Alarm History reset Any DS1 PM register reset Any HDSL2 Alarm History reset Any HDSL2 PM register reset Any Loop Down any segment Any Loop Up any segment Any provisioning option change lt provisioning mnemonic gt changed from lt old gt to lt new gt CPE DBER alarm 1 day threshold crossed of any PM data except PRM NE or PRM FE CPE DS1 AIS begins ends CPE DS1 LOS begins ends CPE PRM NE BER alarm at the remote only 1 day threshold crossed of PRM NE trouble on CPE receive Current
13. H2TU C 388 and verify that the returned looped signal to the test set is error free 3 If step 2 fails have the CO tester transmit the 3 in 5 inband loopdown code H2TU C 388 List 1 June 6 2000 43 Testing 152 388 100 02 Issue 2 4 Have the CO tester send the NLOC 4 in 7 inband loopup for 5 seconds You should be able to observe the NLOC message on the front panel display The Status LED on the front panel should be yellow and the loopback mode should also be identified on the Span Status screen 5 Repeat Step 2 If the test passes the problem is in the downstream direction If it fails the problem is in the upstream direction Loopbacks Toward Network HDSL2 SPAN All ones HDSL2 SPAN 11000 All ones HDSL2 SPAN 1110000 All ones All ones DSX 1 HDSL2 SPAN All ones Cl Customer Interface Loopbacks Toward Customer HDSL2 SPAN HDSL2 SPAN Set the NLBP option to AIS to send AIS indicated by an all ones pattern for any network loopback t A3LB and A4LB loopback codes A1LB A2LB and A5LB loopback codes 4 GNLB loopback codes Figure 27 Loopback Modes 44 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 A1LB A2LB and A5LB Test Procedures Testing Using the codes listed in Table 16 a network tester can activate NLOC NRG or NREM loopbacks or SMJK if enabled A tester at the customer premises can activate CLOC CRG or CREM loopbacks All loopbacks shown in Table 16 can als
14. Hour Performance HISfOFV ss 28 H2TU C HDSL2 25 Hour Performance History 29 H2TU C HDSL2 Current Statistics sise 29 H2TU C DS1 Alarm History Screen 31 H2TU R DS1 Alarim History SGTC H vessie 21 0n D0 s22 0 t1 ceed aint on nn re 31 H2T1U C HDST 2 A l rm History Been suisse 2105116 0711011 G6 c v0 0g g4 0 g1 S20 gu G c n c so l co 801 1 50 8 33 System Event Lois neinn n E er tn Dee EE EES EE 34 H2TU R LOS and AIS Response Priorities sise 38 Loopback Sumamary se es ne ee sites tek c dE tn 61060 Bee edd sde 39 Loopback Modes st nes ves aves l4 set deet dE edd EE E cua agen ee eet dee bai 44 HiGain Line Unit Card Edge Connector ss ss 50 210 t0 DB 9 Adapter ssc CENTER ENEE SEENEN v2 ne c 0 a Eo hous n ch ng EE EEN 51 H2TU C 388 List l Block Diagramme nn fans dt it Mas ue 52 H2TU C 388 List 1 June 6 2000 vii List of Tables 152 388 100 02 Issue 2 LIST OF TABLES viii E 00A ie UY OA Re QUY U ke e be ken ban en en en ken ke gh ON e S ORE IN I Se Front Panel Descriptions eege ZEN de ENEE NEESS EE S516 000556 events 4 Front Panel Display Messages egen uate Seele Eed ed Eege 5 Navigational Keys for the HiGain Maintenance Terminal Screens 11 Logon Screen Menus rimes nn EELER Biased ect ae nes 12 HiGain Line Unit List 1 Standard Config Screen Options ss 17 HiGain Line Unit List 1 ADC Config Screen Options ss 18 DSI DSX 1 24 hour PM Threshol di i
15. KKXX 04 15 00 12 30 01 H2TU C System OK Figure 8 Configuration Menu ADC Options Defaults Shown 16 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning Table 5 describes the Standard Config screen options and lists their front panel display codes Table 6 on page 18 describes the ADC Config screen options Selections in bold typeface are the factory default settings Table 5 HiGain Line Unit List 1 Standard Config Screen Options Screen Standard Config h e Display Selection Description Screen Options Code Loopback LBTO NONE Disables automatic time out cancellation of all loopbacks Timeout 20 Sets automatic cancellation of all loopbacks to 20 minutes after initiation 60 Sets automatic cancellation of all loopbacks to 60 minutes after initiation 120 Sets automatic cancellation of all loopbacks to 120 minutes after initiation Loop Attenuation LATT 0 through 40 dB Determines the maximum loop attenuation before an alarm is declared The Threshold loop attenuation threshold can only be set through the HiGain HDSL2 maintenance screens 35 dB Default value Zero disables the alarm Margin Threshold MARG 0 to 15 dB Determines the minimum allowable margin below which a system alarm can occur Zero disables the alarm The Margin Alarm Threshold can only be set through the HiGain HDSL2 maintenance screens 4dB Default value DS1 Frame FRMG AUTO Configures the HiGain system to operate
16. Line June 6 2000 55 Appendix E Abbreviations SES P Severely Errored Seconds Path SF SuperFrame SMJK SmarkJack SPLB Special Loopback T TLOS Transmit Loss of Signal U UAS Unavailable Seconds 56 June 6 2000 152 388 100 02 Issue 2 H2TU C 388 List 1 CERTIFICATION AND WARRANTY FCC CLass A COMPLIANCE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense LIMITED WARRANTY ADC DSL Systems Incorporated ADC warrants that for a period of sixty 60 months from the date of shipment the hardware portion of its products will be free of material defects and faulty workmanship under normal use ADC s obligation under this warranty is limited to replacing or repairing at ADC s option any such hardware product which is returned during the 60 month warranty period per ADC s instructions and which product is confirmed
17. Log Config Inventory Rlogon Help H2TU C DS 1 25 Hour History Page 1 of 9 P revious Page C l ear History Press lt Space gt to cycle through Interface H2TU C DS 1 choices and lt Enter gt to view Statistics ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 System OK Figure 14 H2TU C DSI 25 Hour Performance History H2TU C 388 List 1 June 6 2000 25 Monitoring System Activity and Performance 152 388 100 02 Issue 2 Examples of current statistics screens are shown below Figure 15 and Figure 16 show statistics for the DS1 interface at the remote unit and line unit respectively These screens report 1 day 1 hour and 15 minute statistics Monitor Event Log Config Inventory Rlogon Help H2TU R DS 1 Current Statistics nua QC E 0 0 600000 0 1801 Press ear Current Statistics Press lt Space gt to cycle through Interface H2TU R DS 1 Choices and lt Enter gt to view Statistics ID xxxx XXxXX XXXX XXXX 04 15 00 12 30 01 H2TU C Figure 15 H2TU R DS1 Current Statistics Monitor Event Log Config Inventory Rlogon Help H2TU C DS 1 Current Statistics un ia ti Oe wn OOOOOOOO 0 1 Press lt Space gt to cycle through Interface H2TU C DS 1 choices and lt Enter gt to view Statistics ID XXXX XXXX XXXX xXxXx 04 15 00 12 30 01 H2TU C System OK Figure 16 H2TU C DSI Current Statistics 26 June 6 2000 H2TU C 388 List 1 152 388 10
18. applies to all products publications and services during and after the warranty period June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Using This Manual USING THIS MANUAL The following conventions are used in this manual Monospace type indicates screen text e Keys you press are indicated by small icons such as M or ENTER Key combinations to be pressed simultaneously are indicated with a plus sign as follows CTRL ESC Items you select are in bold e Three types of messages identified by icons appear in text Notes contain information about special circumstances Cautions indicate the possibility of personal injury or equipment damage The Electrostatic Discharge ESD symbol indicates that a device or assembly is susceptible to damage from electrostatic discharge b For a list of abbreviations used in this document refer to Appendix E Abbreviations on page 55 INSPECTING SHIPMENT Upon receipt of the equipment e 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 DSL Systems Inc Order replacement equipment if necessary e Check the packing list to ensure complete and accurate shipment of each listed item If the shipment is short or irregular contact ADC DSL Systems Inc as described in Appendix D Product Support on page 54 I
19. by ADC not to comply with the foregoing warranty ADC warrants that for a period of 90 days from the date of purchase the software furnished with its products will operate substantially in accordance with the ADC published specifications and documentation for such software ADC s entire liability for software that does not comply with the foregoing warranty and is reported to ADC during the 90 day warranty period is at ADC s option either a return of the price paid or b repair or replace of the software ADC also warrants that for a period of thirty 30 days from the date of purchase the media on which software is stored will be free from material defects under normal use ADC will replace defective media at no charge if it is returned to ADC during the 30 day warranty period along with proof of the date of shipment The transportation charges for shipment of returned products to ADC will be prepaid by the Buyer ADC will pay transportation charges for shipment of replacement products to Buyer unless no trouble is found NTF in which case the Buyer will pay transportation charges ADC may use reconditioned parts for such repair or replacement This warranty does not apply to any product which has been repaired worked upon or altered by persons not authorized by ADC or in ADC s sole judgment has been subjected to misuse accident fire or other casualty or operation beyond its design range Repaired products have a 90 day warranty or
20. inhibited If this Time out Override is sent then the only way to loop the H2TU C 388 down is to do one of the following e issue the Intelligent Repeater IR loopdown LPDN code 1001 0011 1001 0011 9393 e issue the NI LPDN and Disarm inband code 11100 or the ESF DL code FF24 The Time out Override function is only valid for the current active loopback The automatic 5 I 46 W time out timer is restored during subsequent loopback sessions Once the test is complete do one of the following Ifthe system is to loop down but remain Armed send the IR LPDN code Ifall 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 The Armed mode has an automatic time out of 60 minutes but this timer is reset to 60 for any of the following events e Loopback terminates manually or time out e Query e Alternate query e Far End activate e Another ARM command This timer is inhibited while any of the valid command codes are being sent Once the codes are removed the timer restarts at 60 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 A3LB and A4LB Test Procedures Testing The H2TU C 388 can be looped back by sending the Addressable Office Repeater AOR LPBK activation code 1111 1111 0001 1110 FFIE for at least 5 seconds This causes the H2TU C 388 to enter the NLOC state The Loopback Time out setting see Sett
21. of front panel display messages refer to Table 2 on page 5 For pinout diagrams of the H2TU C card edge connector and craft port refer to Appendix A Specifications on page 48 hg HiGain JL List number HDSL2 LI A Are Front panel display CLEI and ECI EE uw O J barcode label MODE and SEL system option buttons Sr SETUP MODE SEL CO Status LED Figure 1 H2TU C 388 H2TU C 388 List 1 June 6 2000 STATUS 7 Craft port TO RS 232 DCE 4 Configuration number List 1 Front Panel Front Panel 152 388 100 02 Issue 2 Table 1 Front Panel Description Front Panel Feature Front panel display Function Displays four character status provisioning and alarm system messages The front panel display illuminates when power is initially applied To conserve power the display only remains on for 5 minutes Using the MODE or SEL buttons reactivates the display and restarts the 5 minute timer Refer to Table 2 on page 5 for a listing of the four character messages MODE and SEL system option buttons Permits user options to be monitored and modified without the need of a maintenance terminal Used to initiate all HiGain loopbacks and to display DSX 1 line parameters and line unit identity Status LED Off Green Red Flashing red Yellow Flashing yellow The status LED can report the following conditions Line power is off Norma
22. power of the received HDSL2 signal relative to noise S N with respect to 21 5 dB Any value of 6 dB or greater is adequate for reliable system operation MNGD Managed The HiGain Line Unit is under control of the HMU 319 Network PWR FEED OFF PWR FEED ON SIG SnL Power Feed Off Power Feed On Signaling Signal n Loop management unit In this state the front panel craft port and push buttons are disabled HDSL2 span power has been turned off by setting the PWRF option to off or HDSL2 span power has been turned off by use of the A2LB Intelligent Office Repeater IOR Power Down code Indicates that the HDSL2 loop is not grounded or shorted The transceivers of the H2TU C and H2TU R are trying to establish contact with each other over the HDSL2 loop The transceivers of the two devices are trying to establish contact with each other where n is the number of the span SYSTEM INFORMATION MESSAGES CODE xxxx FRM xxxx LATT xx LIST xx MARG xx VER x xx Line Code AMI or B8ZS Frame SF ESF UNFR Loop Attenuation HiGain Line Unit List Number Margin HiGain Line Unit Software Version Number The line code that H2TU C 388 is receiving at its DSX 1 interface if the DS1 option is set to AUTO Otherwise it mimics either of the other two DS1 line code settings Alternate Mark Inversion AMI or Bipolar with 8 Zero Substitution B8ZS Defines the type of frame pattern being received from the DSX 1 S
23. that are not inhibited will drive the front panel Status LED to a flashing red alarm state Table 14 Front Panel System Alarms Summary Front Panel T SCH Message Alarm Description To Inhibit PWR FEED Power Feed Short A short exists between the Tip and Ring of Cannot be inhibited SHRT the HDSL2 pair PWR FEED Power Feed Ground The HDSL2 loop is grounded Cannot be inhibited GND PWR FEED Power Feed Open A line power open condition exists Cannot be inhibited OPEN LOSW Loss of Sync Word d The HDSL2 loop has lost synchronization Cannot be inhibited LLOS Local Loss of Signal Loss of the DSX 1 input signal Cannot be inhibited RLOS Remote Loss of Signal Loss of the H2TU R DS input signal Disable the RDA Remote Disconnect Alarm option The front panel Status LED still flashes red and the ALRM RLOS message displays to alert you of the LOS state LOS is sent towards the network from the H2TU C This option prevents the common occurrences of a CPE LOS condition from generating recurring alarms and AIS payloads LAIS Local Alarm Indication Indicates an AIS all ones pattern is being Cannot be inhibited Signal transmitted from the local DS1 output port RAIS Remote Alarm Indicates an AIS all ones pattern is being Cannot be inhibited Indication Signal received at the H2TU R DS1 input port LRAI Line RAI Remote Indicates an RAI alarm yellow from the Cannot be in
24. the total framed payload being transported between two points f 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 c d e aon H2TU C 388 List 1 June 6 2000 27 Monitoring System Activity and Performance 152 388 100 02 Issue 2 Performance History at the HDSL2 Interface The HDSL2 interface has 31 day 48 hour 25 hour and current statistic screens for the H2TU C Figure 17 and Figure 18 below are examples of 31 day and 48 hour performance history screens Figure 19 and Figure 20 on page 29 are examples of 25 hour and current statistics performance history screens respectively Refer to Table 10 on page 30 for descriptions of the kinds of errors reported on all HDSL2 performance screens Monitor Event Log Config Inventory Rlogon Help H2TU C HDSL2 31 Day History Page 1 of 3 P revious Page C l ear History Press lt Space gt to cycle through Interface H2TU C HDSL2 choices and lt Enter gt to view Statistics SENS Eire ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C System OK Figure 17 H2TU C HDSL2 31 Day Performance History Monitor Event Log Config Inventory Rlogon Help H2TU C HDSL2 48 Hour History Page 1 of 4 N ext Page P revious Press lt Space gt to cycle through Interface H2TU C HDSL2 choices and lt Enter gt to view Statistics SERIES ID XXXX XXXX KXXXX XXXX 04 15 00 12 30 H2TU C System OK Figu
25. threshold 0 to 15 dB as set by the operator The HDSL2 loop is grounded Indicates a line power open condition Indicates a short between the Tip and Ring of the HDSL2 pair H2TU R PRM FE BER threshold has been exceeded Far End PRMN Performance Report Messaging H2TU R PRM NE BER threshold has been exceeded Near End RAIS Remote Alarm Indication Signal Indicates an AIS all ones pattern is being transmitted from the remote DS1 output port RLOS Remote Loss of Signal Indicates that no signal is detected at the DS1 input to the H2TU R Causes a system alarm RRAI Remote RAI Indicates an RAI alarm yellow from the CPE with errors from the line unit or network TUC Transmission Unit Central Office Accompanies the HBER MAL and LA alarm and indicates that the alarm has occurred at the H2TU C central office unit TUR Transmission Unit Remote End Accompanies the HBER MAL and LA alarm and indicates that the alarm has occurred at the H2TU R remote unit LOOPBACK MESSAGES CLOC Customer Local Loopback Signal from customer is looped back to the customer at the H2TU R COLB Central Office Loopback Dual loopback at the H2TU C CREM Customer Remote Loopback Signal from customer is looped back to the customer at the H2TU C NLOC Network Local Loopback DSX 1 signal is looped back to the network at the H2TU C NREM Network Remote Loopback DSX 1 signal is looped back to the network at the H2TU R RULB Remote Unit Loopback Dual loopback
26. 0 02 Issue 2 Monitoring System Activity and Performance Table 9 Acronyms Used on the DSI Performance History Screens Error A te Error Per Acronym Description Acronym Description CV L Code Violation Line SES P Severely Errored Seconds Path Total BPV count Seconds with SES or CRC ESP gt 320 or FE SF gt 8 F Fe ES L Errored Seconds Line UAS P Unavailable Seconds Path Seconds with BPV 21 A second of unavailability based on SES P or AIS 21 SES L Severely Errored Seconds Line PRM NE Performance Report Messaging Near End Seconds with BPV plus EXZ gt 1544 The PRM from CPE indicates errors and the signal received from the network at the remote is error free UAS L Unavailable Seconds Line PRM FE Performance Report Messaging Far End Seconds with LOS gt 1 The PRM from the network indicates errors and the signal received from the CPE is error free CV P Code Violation Path B8ZSS B8ZS Monitored Seconds Total count of SF frame bit FB errors or ESF Seconds with B8ZS detection when AMI option CRC errors is active ES P Errored Seconds Path MSEC 6 Monitored Seconds of the current 15 minute Seconds with SEF CRC ESF or hour 1 day screen FE SP gt 1 a FE is a frame bit error b Line refers to the AMI DS1 line code used to transport the payload Only appears on H2TU R Performance History screens Appears on the DS1 Current Statistics screens Path refers to
27. 14 730 3222 Fax 714 730 2400 DOCUMENT 152 388 100 02 ISSUE 2 A Eeer 1214391
28. 2 HDSL2 Alarm Descriptions Screen Alarm Front Panel Alarm Description HDSL2 ALARMS at the H2TU C and H2TU R LOSW LOSW Loss of Sync Word The HDSL2 loop has lost synchronization MAL MAL Margin The margin on the HDSL2 loop has dropped below the minimum threshold value set for the system LA LA Loop Attenuation The attenuation on the HDSL2 loop has exceeded the maximum value set for the HDSL2 loop attenuation threshold HBER HBER Block Error Rate The HDSL2 BER has exceeded the set threshold limits of 10 or 10 HDSL2 ALARMS at the H2TU C only SHORT PWR FEED SHRT Indicates a short between the Tip and Ring of the HDSL2 pair GND PWR FEED GND The HDSL2 loop is grounded OPEN PWR FEED OPEN Indicates a line power open condition H2TU C 388 List 1 June 6 2000 33 Monitoring System Activity and Performance 152 388 100 02 Issue 2 USING THE EVENT LOG TO TRACK SYSTEM EVENTS To view a running log of system events press E to select the Event Log The Event Log displays the date and time of the 100 most recent events most recent displayed first and provides a description of each event Refer to Table 13 on page 35 for a complete list of event log messages e Press N or P to page through the event log e Press T to return to the top of the log e Press L to clear the event log Monitor Performance IS Config Inventory Rlogon Help System Event Log Page 1 of 7 Location Date and System 04 15 00 25
29. 2TU C the H2TU C DSX 1 interface and the DS1 channels to the customer Loopback options include Generic Loopback GNLB options including the SmartJack SMJK option see Table 15 on page 40 e Special Loopback SPLB options see Special Loopback Commands on page 41 and the following command tables Addressable Repeater Loopback commands A1LB A2LB ASLB see Table 16 on page 45 Addressable Repeater Loopback commands A3LB A4LB see Table 17 on page 47 Loopback commands can be initiated by e Selecting the loopback type using the MODE and SEL buttons on the H2TU C front panel or the Manual Loopback button on the H2TU R e Selecting the loopback type from the Monitor Menu when connected to the craft port of the H2TU C or H2TU R e Entering the loopback code exceptions are COLB DxLB and RULB into the test equipment connected to the H2TU C or H2TU R HiGain supports multiple loopbacks but a single loopback is the preferred method I Generic Loopback Commands The HiGain Generic Loopback GNLB commande allow you to use inband codes to loop up either NLOC 4 in 7 or NREM 3 in 7 towards the network In addition these inband codes loop up CREM 6 in 7 or CLOC 5 in 7 towards the customer Either loopup condition can be terminated looped down with the 3 in 5 SMJK loopdown code All inband codes must be present for at least 5 seconds before the HiGain system responds TLOS is a logic loopback caused by
30. 52 388 100 02 Issue 2 MONITORING SYSTEM ACTIVITY AND PERFORMANCE The H2TU C 388 List 1 provides two sets of maintenance screens for monitoring system activity and assessing performance The Monitor screens provide a graphical representation of circuit activity and allow initiation of loopbacks The Performance screens provide current 25 hour 48 hour and 31 day performance histories and a continuous alarm history The Event Log provides a description of the 100 most recent events USING THE MONITOR SCREEN TO VIEW SYSTEM ACTIVITY 1 Type M to view the system diagram Figure 11 shows an armed circuit with an active loopback and alarms Terms used on the system diagram are defined in the onscreen Help menu glossary Abnormal situations are highlighted on the diagram See Table 8 on page 23 for screen field descriptions DS1 DS1 Errors Armed mode Margin Loop attenuation Alarm type HDSL2 Errors Performance Event Log Config Inventory Rlogon Help H2C M 19 we SE TI T KI ES 41 SES 41 lt Active L opback NLOC PL d DARCOS TRS New Loopback Nom E NEA Et ENEA and lt Enter gt to activate LPDN NLOC CREM NREM CLOC ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C System Alarm om Line code and framing Active loopback System status Figure 11 Monitor Screen Active Loopback with Alarms 2 22 To initiate a loopback press the SPACEBAR to cycle through the loopback choices Press ENT
31. 8 to perform this analysis MAXIMUM CURRENT DRAIN The maximum current drain is the maximum current drawn from the shelf power supply when it is at its minimum voltage 42 5 Vdc This determines the shelf fusing requirements Use the 42 5 Vdc current data in Table 18 to determine the shelf fusing requirements for your particular H2TU C applications H2TU C 388 List 1 June 6 2000 49 Appendix A Specifications 152 388 100 02 Issue 2 Loop ATTENUATION Each loop has no more than 35 dB of loss at 196 kHz with driving and terminating impedances of 135Q see Table 19 below Table 19 HDSL2 Cable Attenuation Chart Cable Gauge Loss at 196 kHz dB kft per kft 26 0 4 mm 3 88 83 24 0 51 mm 2 84 52 22 0 61 mm 2 18 32 19 0 91 mm 1 54 16 HIGAIN LINE UNIT CARD EDGE CONNECTOR Figure 28 shows the card edge connectors on the HiGain Line Unit Active pins are highlighted in black 219 119 Frameground Ground 218 118 Ground 48Vdc 217 117 Fusealarm 216 116 215 115 Ring1 gt DSX 1 OUT 214 114 Tip1 213 113 212 112 211 111 210 110 Ring 209 109 Tip DSX NIN 208 108 207 107 Factory burn in 206 106 205 105 204 104 Management bus 203 103 202 102 Ring1 201 101 Tip1 E ZER 200 100 Fuse alarm is normally floating 0 to 80 Vdc max and at 48 Vdc 10 mA max when activated Figure 28 HiGain Line Unit Car
32. ER to make your choice When prompted with the message Are you sure Y N press M to initiate the loopback or N to cancel For more information about loopbacks and troubleshooting see Testing on page 36 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance 3 To initiate a loopdown of all active loopbacks press the SPACEBAR to select LPDN then press ENTER or N When prompted with the message Are you sure Y N press Y to initiate the loopdown or N to cancel Table 8 Monitor Screen Descriptions Field Active Loopback Alarm type Armed mode Code type DS1 ES Count DS1 SES Count DS1 UAS Count Frame type HDSL2 ES Count HDSL2 SES Count HDSL2 UAS Count LA LPF M MAL PL or HG PRM System Status Description An active loopback is indicated on the lower third of the Monitor screen Available loopbacks are indicated by gray text See Table 15 on page 40 for asummary of the HiGain loopback codes Indicates type of alarm Indicates system is in an armed state for an intelligent repeater loopback command Type of DS1 line coding received or sent B8ZS or AMI Errored Seconds The sum of the Errored Seconds Line ES L and Errored Seconds Path ES P counts detected on the DS1 input over a 24 hour period Errors included are DS1 Frame errors BPV and ESF CRC errors Severely Errored Seconds The sum of the DS1 Severely Errored Second
33. Error Rate DDS Digital Data Service DLC Digital Loop Carrier DS1 Digital Signal level 1 DSX 1 DS1 Cross Connect Frame ECI Equipment Catalog Item ES Errored Seconds ESD Electrostatic Discharge ESF Extended SuperFrame ES L Errored Seconds Line ES P Errored Seconds Path GNLB Generic Loopback H H2TU R HiGain Remote Unit HBER HDSL2 Bit Error Rate HCDS High Capacity Digital Service HCS HiGain Card Shelf H2TU C 388 List 1 HDSL2 High bit rate Digital Subscriber Line 2 HMS HiGain Management Shelf HMU HiGain Management Unit ID Identification ILR Intelligent Line Repeater IN Transmit IOR Intelligent Office Repeater IR Intelligent Repeater L LA Loop Attenuation LED Light Emitting Diode LOS Loss of Signal LOSW Loss of Sync Word LOSWS Loss of Sync Word Second LPF Line Power Feed M MSEC Monitored Seconds N NI Network Interface NID Network Interface Device NLOC Network Local Loopback NMA Network Management and Administration NREM Network Remote Loopback NVRAM Non Volatile Random Access Memory O OPTIS Overlapped PAM Transmission with Interlocking Spectra OUT Receive P PAM Pulse Amplitude Modulation PRM FE Performance Report Messaging Far End PRM NE Performance Report Messaging Near End PWRF Power Feed R RDA Remote Disconnect Alarm RLOS Remote Loss of Signal S SES Severely Errored Seconds SES L Severely Errored Seconds
34. F OFF Disables powering to the HDSL2 pair ON Keeps the HDSL2 line voltage at nominal 185 Vdc Remote Provisioning RTPV ENA Enables remote provisioning DIS Disables remote provisioning Bipolar Violation BPVT ENA Enables BPVs and HDSL2 CRC errors at the DS1 input to be converted into Transparency DS1 BPVs at the DS1 output at the distant end This makes HiGain See Bipolar transparent to BPVs Violation DIS Disables BPV Transparency Transparency BPVT Option on page 19 DS1 BER Threshold DBER ENA Enables the fixed 24 hour DS1 BER threshold DIS Prevents the generation of a system alarm due to DS1 BER HDSL2 BER HBER 1E 6 The Status LED flashes red when the Block Error Rate BER exceeds 10 Threshold See HDSL2 BER 1E 7 The Status LED flashes red when BER exceeds 107 hreshold HBER thi u g 1 NONE Prevents generation of a system alarm due to BER Option on page 19 Special Loopback SPLB GNLB Configures the HiGain system to respond to the generic inband loopback Mode codes A1LB and Configures the HiGain system to respond to the inband loopback codes of A2LB the Teltrend addressable repeater A3LB Configures the HiGain system to respond to the inband loopback codes of the Wescom addressable repeater A4LB Configures the HiGain system to respond to the inband loopback codes of the Wescom Mod 1 addressable repeater A5LB Configures the HiGain system to respond to the inband loopback codes of the Teltrend Mod 1 addressable repeater
35. HiGain Line Unit Card Edge Connector ss 50 Network Management Control Bus 5 5 TT TH HH h 50 Fuse Alaris dss Eeer Ae ed ed EE ORAS Sk EE EE 51 VEH GE 51 Appendix B Functional Operation 52 ETH 52 Ground Fault Eet eege id RIG ee SE Ee eas 52 Appendix C Compatibility 53 Appendix D Product Support 54 Appendix E Abbreviations 55 Certification and Warranty Inside Back Cover vi June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 List of Figures LIST OF FIGURES mo an D H2TU C 388 List 1 Front Panel REESEN SEENEN SEn NEVE k i EV t 3 Installing the H2TU C 388 into a Shelf ss H Los n SCr en e ah hat ee lin Egeter 12 Configuration Menu Date and Time sise 13 Inventoty Men consens hirsinen a a aa E AAAA EEA ATAA E ane c n A sat AE ung 14 Conf Surat On Menu dns en et EN O cae tees E ie ne dns SERVEER EEES 15 Configuration Menu Standard Options Defaults Shown ss 16 Configuration Menu ADC Options Defaults Shown ss 16 Configuration Menu Reset to Factory Defaults ss 20 Master Cle aP ugetruede dE 21 Monitor Screen Active Loopback with Alarms ss 22 H2TU R DS1 31 Day Performance History ss 24 H2TU R DS1 48 Hour Performance History ss 25 H2TU C DS1 25 Hour Performance History ss 25 SEA BEER EE UE 26 H2TUC EU 26 H2TU C HDSL2 31 Day Performance History ss 28 H2TU C HDSL2 48
36. History at the DS1 Interface 24 Performance History at the HDSL2 Interface ssssseeseeeessseressseesesrererresreresreerrsreresreresrese 28 Using the Performance Screens to View Alarm Data 30 Alarm History at the DS1 Interface ss 31 Alarm History at the HDSL2 Interface 33 Using the Event Log to Track System Events ss 34 H2TU C 388 List 1 June 6 2000 v Table of Contents 152 388 100 02 Issue 2 Testing 36 Front Panel System Alarms e Segeler REESEN 36 Alarm Option for DLC Feed 37 Retiring System Alarms sr Le nr rene N dise 37 Remote LOS and AIS Response ss HESE ENEE ENEE RREKET 38 OCT55 Test Pattern with AMI Line Code ss 38 Loopback Op ration is 2626262212610 1511 161 4 1 00105 c ants c n 1x0 n ch t c EEKE KEKEE a cases orni Se 39 Generic Loopback Commande 39 Special Loopback Commande 41 Manual Loopback Session sise 42 Loopback Test Procedures ss 43 General Troubleshooting Tips ss 4 GNEB NEE 43 AILB A2LB and ASLB Test Procedures 5 lt 2c 22323232321 3118535311522 sxx 45 A3LB and A4LB Test Procedures 5 55 91 ss 47 Appendix A Specifications 48 Power Cons HDD eegen deed eessen deeg E 49 Maximum Power Dissipation tan enter dites nine nets dunpesesviaceeasvesesouveste 49 Maximum Current Drain iit censon oa a a E E E A R EET ENE SEES 49 Loop Att nudti n saint EEN ESES eee h c Rie 50
37. M through 11 59 59 PM These thresholds correspond to a 10 BER All PM counters clear to zero at 12 00 00 AM or when Master Clear is selected Table 7 DS1 DSX 1 24 hour PM Threshold Parameter Threshold Count opp 133400 ES L ES P PRM NE PRM FE 648 SES L SES P 100 UAS P UAS L 10 Resetting the H2TU C Resetting the H2TU C 388 to its original factory settings may cause interruption of service To reset the HiGain Line Unit to its original factory defaults 1 Type to select the Config menu 2 Use the and Y arrow keys to select Set Factory Defaults then press ENTER 3 Type Y if you are certain you want to reset the H2TU C or press to cancel this action Monitor Performance Event Log Inventory Rlogon Help Standard Options gt PairGain Options gt Date and Time gt Master Clear Set Factory Defaults SETTING FACTORY DEFAULTS SERVICE MAY BE INTERRUPTED ARE YOU SURE Y N ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 System OK Figure 9 Configuration Menu Reset to Factory Defaults 20 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning Clearing the History Alarm and Event Log Screens Clear the History Alarm and Event Log screens after the system has been installed and is functioning properly This removes miscellaneous data acquired during the startup session and ensures collection of accurate and meaningful data thereafter
38. Threshold option to dropped below the minimum threshold 0 zero value set for the system xxxx denotes either TUC or TUR If TUC and TUR occur at the same time then TUC displays XXXX LA Loop Attenuation The attenuation on the HDSL2 loop has Set the HDSL2 Loop Attenuation exceeded the maximum value set for the Threshold option to zero HDSL2 loop attenuation threshold xxxx denotes either TUC or TUR If TUC and TUR occur at the same time then TUC displays a The message ALRM displays prior to any alarm message Message displays repeatedly as long as the alarm condition exists and is not included in the priority order Only these alarms assert the System Alarm bus on pins 20 and 21 of the card edge connector if the ALM option is enabled When the HDSL2 loop loses sync word LOSW a system alarm condition exists However since the H2TU C 388 enters the acquiring mode the front panel status LED flashes red and the ACQ or SIG message displays instead of the ALRM message b c d Alarm Option for DLC Feed To improve HiGain compatibility with the switch to protect features used in DLC feeder applications the H2TU C 388 List 1 has an Alarm Pattern ALMP option that allows you to select either an AIS or LOS DS1 output payload for the following alarms e LOSW on any loop e LOS DS1 Retiring System Alarms To retire a system alarm press the SEL button to execute an Alarm Cutoff ACO An ACO turns the a
39. at does not exceed the maximum allowable power dissipation density in watts per square foot to comply with GR 63 In COs the maximum power dissipation for open faced natural convection cooled mountings is limited to 134 7 watts per square foot per GR 63 CORE The footprint of a standard 28 slot 23 inch HMS 317 shelf is 7 024 square feet Therefore the maximum bay dissipation is limited to 946 watts Use this limit and the parameters in Table 18 to determine the maximum number of H2TU C circuits that can occupy one CO bay density More favorable conditions would permit increasing the number of shelves per bay This is a worst case situation since it assumes the entire CO is subjected to the maximum power Z without jeopardizing the CO thermal integrity The thermal loading limitations imposed when using the H2TU C in a Controlled Environmental Vault CEV or other enclosures are determined by applying its power parameters to the manufacturer s requirements for each specific housing The 48 Vdc power consumption is the maximum total power that the H2TU C 388 consumes or draws from the shelf power source This parameter is needed when the H2TU C 388 is in a location remote to the CO it is serving It determines the battery capacity required to maintain an 8 hour standby battery reserve for emergency situations Battery capacity therefore limits the maximum number of line units which can be installed in a remote enclosure Use the data in Table 1
40. at the H2TU R H2TU C 388 List 1 Continued June 6 2000 5 Front Panel 152 388 100 02 Issue 2 Table 2 Front Panel Display Messages Continued Message Full Name Description SMJK Remote SmartJack Loopback DSX 1 signal is looped back to the network at the H2TU R SmartJack module DIAGNOSTIC MESSAGES A Xx Maximum Loop Attenuation The Attenuation A message appears followed by xx where xx is the loop attenuation measured in dB ACQ Acquisition The multiplexers of the H2TU C and H2TU R are trying to establish synchronization over the HDSL2 loop AnL Acquisition n Loop The multiplexers of the two devices are trying to establish synchronization with each other where n is the number of the span ARM HiGain System Armed Armed to respond to Intelligent Repeater Loop ILR codes BAD RT No Response from H2TU R The H2TU C receives no response from the H2TU R and all HDSL2 loop conditions are normal Therefore the integrity of the H2TU R or the HDSL2 loop is questionable FERR Framing Bit Error Occurred Framing bit error occurred at H2TU C DSX 1 input FLDL Flash Download Flash download of firmware updates Contact Customer Service for update procedures see Appendix D Product Support on page 54 HES HDSL2 CRC Error H2TU C HDSL2 Loop Cyclical Redundancy Check CRC error LBPV Local Bipolar Violation A bipolar violation has been received at the DSX 1 input to the HiGain Line Unit M xx HDSL2 Loop Margin Indicates the
41. bly with a random 10 BER on the facility The entire arming and loopback sequence can also be initiated at the remote H2TU R location b Not supported by A4LB H2TU C 388 List 1 June 6 2000 47 Appendix A Specifications APPENDIX A SPECIFICATIONS Power Line Voltage CO Supply Electrical Protection Fusing Environmental Operating Temperature Operating Humidity Physical Height Width Depth Weight Mounting HDSL2 Line Rate Transmission Media Output Line Impedance Maximum Loop Attenuation Start up Time DSX 1 DSX 1 Line Impedance DSX 1 Line Rate DSX 1 Line Format DSX 1 Frame Format DSX 1 Pulse Output DSX 1 Input Level System 48 One way DS1 Delay Wander Looped Wideband Jitter Looped Narrowband Jitter Looped 152 388 100 02 Issue 2 0 185 Vde 48 Vdc nominal 42 5 Vdc to 56 5 Vdc See Power Consumption and Maximum Power Dissipation and Maximum Current Drain on page 49 Secondary surge and power cross protection on HDSL2 ports Requires external primary protection Internal connected to FUSE ALARM output on pin 117 40 F to 149 F 40 C to 65 C 5 to 95 non condensing 3 62 in 9 2 cm 0 69 in 1 8 cm 10 in 25 4 cm 0 5 Ibs 23 kg DDM high density shelf 1 552 Mbps Overlapped Pulse Amplitude Modulation Transmission with Interlocking Spectra OPTIS Full duplex One non loaded copper two wire cable
42. d Edge Connector Network Management Control Bus The H2TU C 388 provides a Network Management Control Bus on pin 104 of the card edge connector This allows the various ADC Management System protocols to manage the H2TU C through the HMU 319 HiGain Management Unit Whenever the H2TU C 388 is under management the MNGD message displays periodically on the front panel display e Some HiGain Line Unit features are affected when it is under management Consult the 4 management unit practice for further information 50 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Appendix A Specifications Fuse Alarm Pin 117 on the card edge connector is a fuse alarm that is driven to 48 Vdc through a diode whenever its onboard fuse opens CRAFT PORT Figure 29 shows the craft port adapter and its connection to a DB 9 or DB 25 connector on a maintenance terminal Terminal DB 9 connector DTE H2TU C 388 DB 9 connector RD Receive Data TD Transmit Data GND Terminal Female DB9 210 adapter supplied with each unit Figure 29 210 to DB 9 Adapter H2TU C 388 List 1 June 6 2000 51 APPENDIX B FUNCTIONAL OPERATION ADC HDSL2 technology provides full duplex services at standard DS1 rates over copper wires between an H2TU C and an H2TU R which comprise one HiGain system HiGain systems use ADC Overlapped PAM Transmission with Interlocking Spectra OPTIS transceiver systems to establish full duplex 1
43. d during the last 1 minute interval e HBER option 1E 6 Alarm is generated if CRC gt 92 e HBER option 1E 7 Alarm is generated if CRC gt 9 Once initiated the HBER count clears when the CRC count drops below the selected threshold Selecting NONE inhibits this alarm DS1 Line Coding DS1 Option The DS1 line code option should always be set to conform to the type of DS1 service AMI or B8ZS being provided by the HiGain system The Auto mode which can adapt to either AMI or B8ZS should only be used in applications that require it such as when HiGain acts as a standby circuit to DS1 circuits whose line codes are not known or may be both AMI and B8ZS This is because the Auto mode induces one BPV in the DS1 bit stream whenever it switches from AMI to B8ZS The Auto mode allows both the H2TU C and the H2TU R to set its DS1 output code to that which is being received at the distant end DS1 input This forces the input and the output codes in each direction of transmission to be identical H2TU C Equalization EQL Option Equalization is the configuration of system transmission characteristics within specified limits An adaptive equalizer inserts a frequency shaped loss that corresponds to an equivalent addition of an appropriate cable length By simulating the additional cable loss necessary for correct operation the equalizer compensates for a range of variation in transmission path characteristics Bipolar Violation Transparency BPVT
44. e Terminal Screens Key 9 Function SPACEBAR Cycle through selections ENTER Activate the current setting or choice or display a menu ESC or F11 VT100 Return to the parent menu T or CTRL E Select the submenu or item above the current one or return to the previous menu J or CTRLU x Select the submenu or item below the current one gt or CTRL D Select the menu or item to the right of the current one lt or CTRL S Select the menu or item to the left of the current one or return to the previous menu CTRL R Refresh the screen a Legacy management units require use of control keys instead of arrow keys o A Most VT100 emulation programs support a print screen option For Windows based programs such as ProComm or Hyperterminal do the following 1 Highlight the screen that you wish to print 2 Click File then Print 3 In the Print dialog box choose Selection as the Print Range 4 Click OK to print For printing procedures for other programs contact the appropriate vendor H2TU C 388 List 1 June 6 2000 11 Provisioning 152 388 100 02 Issue 2 Menu bar Performance Event Log Config Inventory Rlogon Help PairGain Technologies Inc HiGain Solitaire HDSL2 Voice 800 638 0031 Fax 714 832 9924 www pairgain com ID XXXX KXXXX XXXX KXXXX 04 15 00 12 30 01 Circuit ID Number Date and Time Logon Device System Status Figure 3 Logon Screen Table 4 Logon Screen Menus
45. e network at the H2TU R and signal from the customer X X is looped back to the customer at the H2TU R SMJK LpUp 11000 SmartJack Loopup or NID payload PL code Invokes X PL 2 in 5 H2TU R loopback towards network SMJK LpUp 1111 1111 SmartJack Loopup or NID ESF DL code Invokes X ESF DL 0100 1000 H2TU R loopback towards network SMJKLpDn 11100 SmartJack Loopdown or NID payload PL code Removes X PL 3 in 5 SMJK NLOC NREM CLOC CREM CRGx and NRGx SMJK LpDn 1111 1111 SmartJack Loopdown or NID ESF DL code Removes X ESF DL 0010 0100 SMJK NLOC NREM CLOC CREM CRGx and NRGx 7 40 HiGain systems feature the SmartJack option which can emulate a Network Interface Device NID for the purpose of loopback testing of the HiGain circuit SMJK and NREM loopbacks perform the same functions but their initiation differs SMJK indicates that the loopback was initiated by the 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 or the MODE and SEL buttons Use the inband commands to enable or disable the SMJK loopback options The H2TU C 388 system setting is normally enabled to recognize all inband SmartJack loopback commands June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Testing Special Loopback Commands In addition to the GNLB loopback command mode a HiGain system can be configured for one of five special loopback com
46. e operator PL displays when the loopback was initiated by a command embedded in the DS1 data path payload PL HG displays when the loopback was initiated from a HiGain Generic HG front panel or by a HiGain maintenance terminal loopback command The sum of the Performance Report Messaging Near End PRM NE and Performance Report Messaging Far End PRM FE counts 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 Alarm Data on page 30 for detailed alarm information H2TU C 388 List 1 June 6 2000 23 Monitoring System Activity and Performance 152 388 100 02 Issue 2 USING THE PERFORMANCE SCREENS TO VIEW PERFORMANCE DATA The Performance screens display e CRC statistics for the HDSL2 or DST interface in 31 day 48 hour 25 hour and current history reports e Alarm statistics for the HDSL2 Figure 23 on page 33 or DS1 interfaces Figure 22 on page 31 on a continuous basis To access the Performance history screens 1 Type P to select the Performance screen 2 Press the SPACEBAR to select either interface H2TU C DS1 H2TU R DS1 H2TU C HDSL2 or H2TU R HDSL2 then press ENTER 3 Press the SPACEBAR to select the type of statistics Current Alarm History 25 Hour History 48 Hour History or 31 Day History then pres
47. eports four character status messages The H2TU C repeats this cycle until a downstream device is detected 3 Verify that the remote unit synchronizes normally The H2TU C status LED should light a steady green and the front panel display should report normal margin messages 4 Verify that a valid DS1 signal has been applied to the H2TU C and the H2TU R Ifno DS1 signal is being applied to either the H2TU C or the H2TU R inputs then the appropriate DS1 alarms LLOS or RLOS are observed on the front panel display and the status LED flashes red e fa valid DS1 signal is being supplied to the H2TU C and H2TU R then DS1 alarm indications should be absent and the status LED should be a steady green 8 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning PROVISIONING There are two provisioning methods Use the MODE and SEL buttons on the front panel of the H2TU C to Set system options Reser the H2TU C to its factory default settings for system options Display system option settings scroll mode Select system loopbacks Use a maintenance terminal VT100 terminal or a PC running terminal emulation software connected to the H2TU C craft port or to an HMU craft port to access the HiGain HDSL2 maintenance screens Figure 3 on page 12 This gives you full access to all H2TU C status history inventory and provisioning screens No dip switches or jumpers are required to provision the H2TU C 388 Li
48. events since 12 00 00 AM PRM FE PRMF Performance Report Messaging Far End The count of the PRM FE register at the H2TU R exceeds the 10 BER threshold at 648 events since 12 00 00 AM DBER DBER Bit Error Rate The DS1 BER has exceeded the built in 24 hour threshold limits of approximately 10 8 LOF LOF Loss of Frame Indicates the incoming DS1 frame pattern is other than the one selected ESF or SF by the FRMG option Only occurs if the FRMG option is set to SF or ESF a Issues a minor alarm sent to the management unit or the backplane if enabled b AIS Cl is a modified AIS alarm pattern Equipment not suited to detect AIS CI still detects this signal as an AIS AIS Cl is sent toward the network indicating that an LOS RLOS or AIS RAIS has been received from the CPE 32 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance Alarm History at the HDSL2 Interface Figure 23 shows the H2TU C HDSL2 alarm history and Table 12 describes the alarms Monitor Event Log Config Inventory Rlogon Help H2TU C HDSL2 Alarm History Status 04 03 00 00 00 04 03 00 00 45 ALARM OK OK 04 03 00 00 37 04 03 00 00 45 OK OK OK OK Press C l ear Alarm History Press lt Space gt to cycle through Interface H2TU C HDSL2 choices and lt Enter gt to view Statistics HELENA ID NNN NS 04 15 00 12 30 01 H2TU C System Alarm Figure 23 H2TU C HDSL2 Alarm History Screen Table 1
49. f you must store the equipment for a prolonged period store the equipment in its original container H2TU C 388 List 1 June 6 2000 iii Inspecting Shipment 152 388 100 02 Issue 2 iv June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Table of Contents TABLE OF CONTENTS Overview 1 Features EE 1 COmmpatD ty EE 2 er OT EE 2 Front Panel 3 Installation 7 KS et ee EE 8 Verification without a Downstream Device ss 8 Verification with a Downstream Device ss 8 Provisioning 9 Using the MODE and SEL BULfOnS 22222222621 20065 0016 ist ses 600101505 Ree KOLS SE EE PATEE 9 Setting Options through MODE and SEL 9 Resetting to Factory Default Nalues eee cee 6 5 S31 9 TY TH HH HH TH t 10 Displaying System Parameter Settings 10 Toopb ck Modes 2 line nn tin nn c 4 0 ooh hee ee 10 Using a Maintenance TerIm1Tna 5c 2e ss 10 Connecting to a Maintenance Terminal 10 RRE EE 11 Provisioning Tasks iss sie awh Med ee Eege c c 13 Setting Date and Time sise 13 Setting Circuit ID Num TS ss ss 14 Confis rnne the System vec se seer nl ten fre xess 15 Clearing the History Alarm and Event Log Screens 55 sen set 21 Monitoring System Activity and Performance 22 Using the Monitor Screen to View System Activity 22 Using the Performance Screens to View Performance Data 24 Performance
50. he alarm history screens 1 2 Type P to select the Performance screen Press the SPACEBAR to select an interface H2TU C DS1 H2TU R DS1 H2TU C HDSL2 or H2TU R HDSL2 then press ENTER Press the SPACEBAR until Alarm History is selected then press ENTER e Press N or P to page through the alarm history screens e Press E to clear the selected alarm history screen June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance Alarm History at the DS1 Interface The Alarm History screen reports DS1 statistics for the H2TU C Figure 21 and the H2TU R Figure 22 on page 31 on a continuous basis The types of alarms reported are described in Table 11 on page 32 Current alarms are shown in reverse video Monitor Event Log Config Inventory Rlogon Help H2TU C DS 1 Alarm History Status 04 03 00 00 00 04 03 00 00 45 ALARM OK 04 03 00 00 37 04 03 00 00 45 OK OK Interface Statistics System Alarm Figure 21 H2TU C DS1 Alarm History Screen Monitor Event Log Config Inventory Rlogon Help H2TU R DS 1 Alarm History Status 04 03 00 00 00 04 03 00 00 45 ALARM 04 03 00 00 37 04 03 00 00 45 C 1 ear Alarm History Press lt Space gt to cycle through Interface H2TU R DS 1 Choices and lt Enter gt to view Statistics ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 Figure 22 H2TU R DS1 Alarm History Screen H2TU C 388 List 1 June 6 2000 31 Monitoring System Act
51. hibited Alarm Indication at the CPE with an error free signal from the line H2TU R Net signal unit or network does not have errors RRAI Remote RAI Remote Indicates an RAI alarm yellow from the Cannot be inhibited Alarm Indication at the CPE with errors from the line unit or H2TU R Net signal network has errors xxxx DBER DS1 Bit Error Rate The DS1 BER has exceeded the set Select DIS for the DBER system option threshold limits of approximately 10 xxxx denotes either TUC or TUR If TUC and TUR occur at the same time then TUC displays Continued 36 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Testing Table 14 Front Panel System Alarms Summary Continued Front Panel Message Alarm Description To Inhibit LOF Loss of Frame The DS1 input does not contain the ESFor Change FRMG option to AUTO or UNFR SF frame pattern setting of the FRMG option PRMF Performance Report Indicates H2TU R PRM FE BER threshold Set DBER threshold to DIS Messaging Far End is exceeded PRMN Performance Report Indicates H2TU R PRM NE BER threshold Set DBER threshold to DIS Messaging Near End is exceeded xxxx HBER 9 HDSL2 Block Error The HDSL2 BER has exceeded the set Select NONE for the HBER system option Rate threshold limits of 10 or 10 xxxx denotes either TUC or TUR If TUC and TUR occur at the same time then TUC displays xxxx MAL 9 Margin Alarm The margin on the HDSL2 loop has Set the Margin Alarm
52. in an auto framing AUTO mode It Formatting detects and locks to both SF or ESF DS1 frame patterns Line and path performance parameters are maintained and displayed Unframed payloads will cause the ES P and SES P counters to increment SF Configures the HiGain system to search for the SF framing pattern at its DS1 input ESF Configures the HiGain system to search for the ESF framing pattern at its DS1 input UNFR Configures the same as AUTO except unframed payloads do not cause the ES P and SES P counters to increment DS1 Line Coding DSi AUTO The H2TU C 388 and H2TU R monitor the incoming DS1 bit streams for the see DS1 Line B8ZS code If the H2TU R detects this code the H2TU C enters B8ZS output Coding DS1 mode The H2TU C reverts back to AMI output mode if no B8ZS codes are Option on received at the H2TU R input for 5 seconds Similarly when the H2TU C page 19 detects the B8ZS code the H2TU R enters B8ZS mode and returns to AMI mode if no B8ZS code is received at the H2TU C input for 5 seconds B8ZS Places both the H2TU C 388 and H2TU R into B8ZS mode AMI Places both the H2TU C 388 and H2TU R into AMI mode H2TU C EQL 0 Sets the Equalizer to DSX 1 for 0 to 132 feet Equalization See H2TU C 133 Sets the Equalizer to DSX 1 for 133 to 265 feet Equalization 266 Sets the Equalizer to DSX 1 for 266 to 398 feet EQL Option on page 19 399 Sets the Equalizer to DSX 1 for 399 to 532 feet 533 Sets the Equalize
53. ing the Loopback Time out Option on page 42 determines the duration of this loopback unless it is overridden by the reception of a second identical 16 bit loopup command before the timer expires When this time out override state exists the only way to loop the H2TU C 388 down is to issue one of the three loopdown commands listed in Table 17 The automatic time out mode is restored during subsequent loopback sessions Table 17 summarizes the codes required to execute Addressable 3 A3LB and Addressable 4 A4LB repeater loopback commands All code sequences must be present for at least 5 seconds Table 17 Addressable Repeater Loopback Commands A3LB and A4LB Name Description Binary Code 2 Hexadecimal Equivalent NLOC H2TU C 388 loopup from NI 1111 1111 0001 1110 FF1E CREM H2TU C 388 loopup from Cl 0011 1111 0001 1110 3F1E NREM H2TU R loopup from NI 1111 1111 0000 0010 FF02 CLOC H2TU R loopup from Cl 0011 1111 0000 0010 3F02 SMJK H2TU R loopup from NI 11000 11000 11000 SMJK H2TU R loopup from NI 100000 100000 100000 SMJK H2TU R loopup from NI ESF DL 1111 1111 0100 1000 FF48 Loopdown H2TU C and H2TU R loopdown from NI OR Cl 11100 11100 11100 Loopdown H2TU C and H2TU R loopdown from NI OR Cl 100 100 100 Loopdown H2TU C and H2TU R loopdown from NI OR CI ESF DL 1111 1111 0010 0100 FF24 a The leftmost bit arrives first in all sequences The detection algorithm functions relia
54. inutes 60 minutes default setting 120 minutes Activating Manual Loopback Mode Z With the exception of SmartJack any of the HiGain loopbacks can be executed using the MODE and SEL buttons When executing a manual loopback session using the MODE and SEL buttons e The next loopback option can be displayed by pressing the MODE button however the previously activated loopback remains active until the SEL bution is pressed which activates the new loopback e If neither button is pressed for a period of 30 seconds and no loopback is in effect the manual loopback session terminates and the display returns to normal mode e If any loopback is in effect the 30 second time out is inhibited The active loopback and the manual loopback session continue until the loopback times out in accordance with the LBTO setting If there is an active loopback pressing the MODE and SEL buttons for 3 or more seconds terminates any active loopback ends the manual loopback session and returns the display to normal mode To initiate a manual loopback session 1 Press both the MODE and SEL buttons on the front panel for at least 5 seconds The following message appears on the front panel display MAN LPBK NLO 2 Press SEL to activate NLOC The display changes to MAN LPBK NLOC 3 Press MODE to advance to the next available loopback NRE NREM CRE CREM CLO CLOC COL dual loopback at H2TU C RUL dual loopback at H2TU R J
55. itioned copper pair over the full Carrier Service Area CSA range The CSA includes loops up to 12 000 feet of 24 American Wire Gauge AWG wire or 9 000 feet of 26 AWG wire including bridged taps FEATURES The HiGain Line Unit line unit is the Central Office CO side of a T1 transmission system HDSL2 transmission features Lightning and power cross protection on HDSL2 interfaces Full duplex HDSL2 transmission on one pair at 1 552 Mbps Ultra low wander Stratum 1 compliant Grounded loop detection on High bit rate Digital Subscriber Line 2 HDSL2 Front panel provisioning features Four character status display Status Light Emitting Diodes LEDs Bantam 210 jack port for RS 232 connection to a maintenance terminal MODE and SEL switches HiGain HDSL2 maintenance screens for inventory provisioning and troubleshooting DS1 and HDSL2 performance monitoring Non volatile alarm histories Configuration options Selectable DS1 pre equalizer Bipolar Violation Transparency BPVT options Bit Error Rate BER alarm Loss of Signal Alarm Indicator Signal LOS AIS payload alarm option Remote provisioning Selectable loopback activation codes Compatible with Double Dual Module Plus DDM high density shelves Payload PL and HiGain Generic HG loopback source identification Network Management and Administration NMA interface Margin Alarm MAL alarm H2TU C 388 List 1 June 6 2000 1 Overview 152 388 100 02 Issue 2
56. ivity and Performance 152 388 100 02 Issue 2 Table 11 DSI Alarm Descriptions Screen Alarm Front Panel Alarm Description H2TU C DS1 ALARMS Figure 21 on page 31 LLOS LLOS Local Loss of Signal Loss of the H2TU C DSX 1 input signal LAIS LAIS Local Alarm Indication Signal Indicates an AIS all ones pattern is transmitted from the local DS1 output port The ALMP option determines whether AIS default or LOS is sent towards the CPE DBER DBER Bit Error Rate The DS1 BER has exceeded the built in 24 hour threshold limits of approximately 10 8 LOF LOF Loss of Frame Indicates the incoming DS1 frame pattern is other than the one selected ESF or SF by the FRMG option Only occurs if the FRMG option is set to SF or ESF H2TU R DS1 ALARMS Figure 22 on page 31 RLOS RLOS Remote Loss of Signal Loss of the H2TU R D I input signal RAIS RAIS Remote Alarm Indication Signal Indicates an AIS all ones pattern is being transmitted from the remote DS1 output port By default see Figure 25 on page 38 AIS CI is sent towards the network RAI RRAI Remote RAI Indicates an RAI alarm yellow from the CPE with errors from the line unit or network LRAI LRAI Line RAI Indicates an RAI alarm yellow from the CPE with an error free signal from the line unit or network PRM NE PRMN Performance Report Messaging Near End The count of the PRM NE register at the H2TU R exceeds the 10 BER threshold at 648
57. k These additions make A1LB identical to A2LB A1LB is given a separate identity to allow future DS1 E1 enhancements to be added without affecting A2LB ASLB differs from A2LB in that ASLB does not block the arming code from exiting the H2TU C 388 into the network AILB and A2LB can be configured to do one of the following e Block the arming code after 2 seconds from exiting the H2TU C into the network and replace it with the AIS code e Unblock the AIS code by executing the Far End Activate code Since ASLB never blocks the arming code from exiting the H2TU C the Far End Activate code is not available in ASLB A3LB differs from A4LB in that A3LB supports the additional 1 in 6 SMJK loopback command H2TU C 388 List 1 June 6 2000 41 Testing 152 388 100 02 Issue 2 Manual Loopback Session 42 A manual loopback session allows you to select any one of the HiGain loopbacks listed in Table 15 on page 40 with the exception of SmartJack loopbacks which can only be issued by inband commands Setting the Loopback Time out Option Before initiating a loopback session verify that the Loopback Time out parameter is set to the desired setting 1 Use the MODE and SEL buttons as described in Setting Options through MODE and SEL on page 9 The Loopback Time out parameter is also user selectable from the System Settings screen when using a maintenance terminal 2 Select the desired setting NONE time out disabled 20 m
58. l operation Fuse alarm HDSL2 acquisition or system alarm An H2TU C 388 List 1 Customer Remote Loopback CREM or a Network Local Loopback NLOC is in effect H2TU C 388 List 1 is in an Armed ARM state Craft port RS 232 Provides bidirectional communication between the unit and an external terminal to allow configuration and performance monitoring through the Maintenance Terminal screens CLEI and ECI bar code label Provides the human readable Common Language Equipment Identifier CL EI code number and the Equipment Catalog Item ECI bar code number List number Identifies the list number of the H2TU C 388 List 1 Configuration Number For some products the configuration number may contain either a standalone two or three digit configuration number or a five or six digit warranty configuration number as follows Digit 1 Last digit of shipment year Digits 2 and 3 Shipment month Digits 4 5 and 6 Configuration number The configuration number identifies the version of the product New configuration numbers usually accompany changes in the last two characters of the CLEH code The configuration number is found on a small label attached to the unit It is the last two numbers following the x of a 13 character part number For example 150 1234 01 x01 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Front Panel Table 2 lists the front panel display messages The four character display
59. larm off and replaces the ALRM message with an ACO message The second part of the ALRM message which defines the cause of the alarm remains Both parts of the message remain until the alarm condition clears or another higher priority alarm occurs H2TU C 388 List 1 June 6 2000 37 Testing 152 388 100 02 Issue 2 Remote LOS and AIS Response Figure 25 shows the different ways the H2TU R can respond to the network depending on the configuration of the TLOS NLBP RDA and ALMP configuration options described in Table 5 on page 17 and Table 6 on page 18 Loopback to Network pass on LOS to Network no alarm report Remove alarm pattern PairGain Option HDSL2 Standard Option Default configurations are boldface Pass on LOS to Network AIS to Network Figure 25 H2TU R LOS and AIS Response Priorities OCT55 TEST PATTERN WITH AMI LINE CODE The OCTSS test pattern can be used in unframed mode to stress the system and verify data integrity In an SF or ESF framing mode excessive zero anomalies may occur which causes the H2TU C to report ES SES and UAS errors according to ANSI T1 231 1997 38 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Testing LOOPBACK OPERATION HiGain has a family of loopback options for analyzing circuit functionality The loopback signal is transmitted and returned to the sending device for comparison This allows you to verify the integrity of the HDSL2 channels to the H
60. loss of the DS1 input from the CI Figure 26 summarizes the available loopbacks in the system and Table 15 on page 40 summarizes the HiGain generic loopback commands See GNLB Test Procedures on page 43 for the test procedures that apply when using the GNLB mode lt Activate loopback using one of the following e MODE SEL pushbuttons Maintenance Terminal Activate loopback using one of the following LBK pushbutton Maintenance Terminal e Test Set NREM NLOC CREM SMJK CLOC TLOS Test Set H2TU C H2TU R Customer Premises Figure 26 Loopback Summary H2TU C 388 List 1 June 6 2000 39 Testing 152 388 100 02 Issue 2 Table 15 Summary of HiGain Loopback Codes and Activation Methods Method of Activation Loopback Code Description Test Set Craft Port MODE SEL NLOC 1111000 DSX 1 signal is looped back to the network at the H2TU C X X X 4 in 7 NREM 1110000 DSX 1 signal is looped back to the network at the H2TU R X X X 3 in 7 CLOC 1111100 Signal from the customer is looped back to the customer X X X 5 in 7 at the H2TU R CREM 1111110 Signal from the customer is looped back to the customer X X X 6 in 7 at the H2TU C COLB Dual loopback at the H2TU C DSX 1 signal is looped back to the network at the H2TU C and signal from the customer X X is looped back to the customer at the H2TU C RULB Dual loopback at the H2TU R DSX 1 signal is looped back to th
61. mand modes These are selected from the maintenance terminal System Settings screen see Table 5 on page 17 or by using the MODE and SEL buttons see Figure 27 on page 44 Once a loopback mode is activated other loopback commands can be sent by a test set connected to the craft port of the H2TU C or H2TU R see Table 16 on page 45 and Table 17 on page 47 for list of SPLB commands A1LB through ASLB are five special addressable repeater loopback modes which are supported by the H2TU C 388 List 1 These loopback modes provide the HiGain system with sophisticated maintenance and troubleshooting tools AILB A2LB and ASLB are patterned after the Teltrend addressable DS1 repeater loopbacks A3LB and A4LB are patterned after the Wescom addressable DS1 repeater loopbacks All five SPLBs have been enhanced to handle the specific requirements of the following HiGain customers AILB Teltrend Southwestern Bell e A2LB Teltrend Southwestern Bell e A3LB Wescom New England Telephone e A4LB Wescom Mod 1 New York Telephone e ASLB Teltrend Mod 1 Southern New England Telephone SNET Southwestern Bell Pacific Bell The A1LB loopback selection complies with that proposed for HDSL2 systems in the T1E1 4 92 recommendation with the following additions e Query loopback IOR Intelligent Office Repeater powerdown e Four loopback time out choices e Initiation from either end e Repeating bit error signatures Alternate query loopbac
62. me on this page 2 Set the circuit ID numbers see Setting Circuit ID Numbers on page 14 3 Make any necessary configuration changes see Configuring the System on page 15 4 Clear history alarm and event log screens to remove miscellaneous data during startup see Clearing the History Alarm and Event Log Screens on page 21 Setting Date and Time Monitor Performance Event Log Inventory Rlogon Help Standard Options gt PairGain Options gt Date and Time gt Date mm dd yyyy rs Time hh mm ss 12 30 01 ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C Figure 4 Configuration Menu Date and Time 1 Type C to select the Config menu 2 Select Date and Time then press ENTER 3 Enter the date in the format indicated then press ENTER 4 Enter the time in the format indicated entering seconds is optional then press ENTER H2TU C 388 List 1 June 6 2000 13 Provisioning 152 388 100 02 Issue 2 Setting Circuit ID Numbers The Inventory screen provides product information on all units in the system and allows setting of the circuit and unit identification numbers Monitor Performance Event Log Config Rlogon Product Information H2TU R Product i H2TU R 402 List 1 Sw Ver H 210 Build 02 Checksum Ox3FAE H2 Xcvr L1 RA2 1 31 L1 RA2 1 31 Serial 01232456789 0123456789 CLET VACHKWOCAA VARHJUUCAA 04 05 00 04 05 00 Circuit and Unit Identifica
63. ndix C Compatibility APPENDIX C COMPATIBILITY The HiGain system uses HDSL2 transmission technology as recommended by ANSI committee in compliance with the August 1999 T1 E1 4 99 006R5 HDSL2 standards The H2TU C 388 List 1 is compatible with the following DDM high density shelves and associated equipment e HCS 402 two slot shelf with 150 1193 01 adapter e Shelf 23 inch Larus FT2 1188 28 slot connectorized AT amp T DS1 Ext 28 slot connectorized e Shelf 19 inch Larus FT21187 20 slot connectorized e Cabinet Distant Terminal 23 inch Larus FT2 1190 12 slots for a 51A cabinet H2TU C 388 List 1 June 6 2000 53 Appendix D Product Support 152 388 100 02 Issue 2 APPENDIX D PRODUCT SUPPORT 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 TAC Sales Assistance 800 366 3891 extension 73000 USA and Canada 952 917 3000 Fax 952 917 3237 Systems Integration 800 366 3891 extension 73000 USA and Canada 952 917 3000 ADC Technical Assistance Center 800 638 0031 714 730 3222 Fax 714 730 2400 Email wsd_support adc com Online Technical Support Online Technical Publications Product Return Department 800 366 3891 ext 73748 or 952 917 3748 Fax 952 917 3237 Email repair amp return
64. o be initiated from the H2TU C 388 front panel MODE and SEL buttons see Setting Options through MODE and SEL on page 9 Table 16 Addressable Repeater Loopback Commands AILB A2LB A5LB Name ARMING or NI LPBK inband Description Arming code Binary Code Hexadecimal Equivalent 11000 11000 ARMING or NI LPBK ESF Data Link Arming code 1111 1111 0100 1000 FF48 Disarming code 11100 11100 IR LPDN or DISARM inband IR LPDN or DISARM ESF Data Link Disarming code 1111 1111 0010 0100 FF24 IOR LPBK NL OC and CREM 230 232 bit errors 229 231 bit errors H2TU C loopup 1101 0011 1101 0011 D3D3 IR LPDN Loopdown H2TU C H2RU or 1001 0011 1001 0011 9393 H2TU R IR QUERY LPBK Query loopback 1101 0101 1101 0101 D5D5 IR ALTERNATE QUERY LPBK Alternate query loopback 1101 0101 1110 1010 D5EA TIME OUT OVERRIDE Loopback time out override FAR END NI ACTIVATE Unblock AIS 1101 0101 1101 0110 D5D6 IOR POWER DOWN H2TU C Removes HDSL2 line power 1100 0101 0101 0100 C554 0110 0111 0110 0111 6767 a The leftmost bit arrives first in all sequences The detection algorithm functions reliably with a random 10 BER on the facility The entire arming and loopback sequence can also be initiated at the remote H2TU R location b The H2TU R identifies CREM and the H2TU C identifies NLOC with 231 bit er
65. pair 16 8 dBm 0 5 dB at 135 Q 0 450 kHz at CO side 16 5 dBm 0 5 dB at 135 0 350 kHz at remote side 135 Q 35 dB at 196 kHz 135Q 30 seconds typical 1 minute maximum 100 Q 1 544 Mbps 200 bps Alternate Mark Inversion AMI or Bipolar with 8 Zero Substitution B8ZS Extended SuperFrame ESF SuperFrame SF or Unframed UNFR 6 VPkPK pre equalized for 0 to 655 feet of ABAM cable 1 5 to 7 5 dB DSX lt 400 us over the span Meets MTIE T1 101 requirements 0 2 Ul maximum 0 1 Ul maximum June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Appendix A Specifications POWER CONSUMPTION The maximum power consumption and heat dissipation depends upon the type of remote units in the system and the CPE power setting The three most important power parameters of an H2TU C are its maximum power consumption its maximum power dissipation and its maximum current drain Table 18 describes line powered circuits on 9 kft 26 AWG loops Table 18 H2TU C 388 Power Parameters 48 Vdc Power Consumption nh 42 5 ee sis Watts Remote Power Source Maximum Maximum Maximum Line powered 12 5 7 0 294 0 Local powered 5 0 5 0 117 0 MAXIMUM POWER DISSIPATION The maximum power dissipation measures the power that is converted into heat that builds up within the unit It contributes to the total heat generated in the space around the unit It is used to determine the maximum number of fully loaded shelves per bay th
66. r to DSX 1 for 533 to 655 feet H2TU R Line RLBO 0 dB Sets the DS1 receive level output toward the Customer Interface Cl Can only Buildout be set through the HiGain HDSL2 maintenance screens 7 5 dB Sets the DS1 RLBO level toward the Cl to 7 5 dB 15 dB Sets the DS1 RLBO level toward the Cl to 15 0 dB Alarm Pattern ALMP AIS Enables the HiGain system to output an AIS payload at its DS1 ports for LOSW and DS1 LOS See Figure 25 on page 38 for LOS AIS response priorities LOS Enables the HiGain system to output an LOS condition at its DS1 ports for LOSW and DS1 LOS H2TU C 388 List 1 Continued June 6 2000 17 Provisioning 152 388 100 02 Issue 2 Table 5 HiGain Line Unit List 1 Standard Config Screen Options Continued Screen Standard Config x Ai i Display Selection Description Screen Options Code H2TU R TLOS TLOS ENA Enables a logic loopback at the H2TU R when an LOS occurs at its DS1 input Loopback See Figure 25 on page 38 for LOS AIS response priorities DIS Disables TLOS logic loopback Network NLBP AIS Enables the H2TU R to transmit AIS towards the CI for any network loopback Loopback Pattern See Figure 25 on page 38 for LOS AIS response priorities LOS Enables the H2TU R to transmit LOS towards the CI for any network loopback Table 6 HiGain Line Unit List 1 ADC Config Screen Options ADC Config Screen Screen Options Display Code Selection Description Line Power Feed PWR
67. re 18 H2TU C HDSL2 48 Hour Performance History 28 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance Monitor Event Log Config Inventory Rlogon Help H2TU C HDSL2 25 Hour History Page 1 of 9 245 00 15 30 45 00 15 30 45 00 i5 30 45 P revious Page C l ear History Press lt Space gt to cycle through Interface H2TU C HDSL2 choices and lt Enter gt to view Statistics PSN ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C System OK Figure 19 H2TU C HDSL2 25 Hour Performance History Event Log Config Inventory Rlogon Help H2TU C HDSL2 Current Statistics 348 Margin dB Press lt Space gt to cycle through Interface H2TU C HDSL2 choices and lt Enter gt to view Statistics ID XXXX XXXX XXXX XXX gt H2TU C Figure 20 H2TU C HDSL2 Current Statistics H2TU C 388 List 1 June 6 2000 29 Monitoring System Activity and Performance 152 388 100 02 Issue 2 Table 10 Acronyms Used on the HDSL2 Performance History Screens Error Acronym Description ES Errored Seconds Seconds with HDSL2 CRC gt 1 or LOSW gt 1 SES Severely Errored Seconds Seconds with HDSL2 CRC gt 50 or LOSW gt 1 UAS Unavailable Seconds Based on 10 contiguous SES occurrences CV Code Violation Total count of HDSL2 CRC errors LOSWS Loss of Sync Word Second Seconds with LOSW gt 1 USING THE PERFORMANCE SCREENS TO VIEW ALARM DATA 30 To access t
68. reports the code of an alarm loopback or diagnostic message and in some cases is followed by a second four character message that modifies the first message with a value or current configuration setting Table 2 Front Panel Display Messages Message Full Name SYSTEM ALARM MESSAGES ACO ALRM DBER HBER LA LAIS LLOS LOSW LRAI MAL PWR FEED GND PWR FEED OPEN PWR FEED SHRT PRMF Alarm Cutoff Alarm Condition Exists DS1 Bit Error Rate HDSL2 Block Error Rate Loop Attenuation Local Alarm Indication Signal Local Loss of Signal Loss of Sync Word Line RAI Margin Alarm Ground Open Short Performance Report Messaging Description A system alarm has occurred and has been retired to an ACO condition by pressing the SEL button on the H2TU C front panel A system alarm condition is in effect A system DS1 BER alarm is in effect and remains in effect until cleared A system HDSL2 Block Error Rate alarm is in effect Indicates that the attenuation on the HDSL2 loop has exceeded the maximum threshold value Indicates an AIS all ones pattern is being transmitted from the local DS1 output port Indicates that no signal is detected at the DSX 1 input to the H2TU C Causes a system alarm Indicates that the HDSL2 loop has lost synchronization Indicates an RAI alarm yellow from the CPE with an error free signal from the line unit or network The margin on HDSL2 loop has dropped below the
69. rors including the frame bits When framed data is being sent in the Auto framing mode the number of the 231 bit errors detected by the test set varies from 229 to 231 depending on whether or not the test set counts frame errors as bit errors and on the number of frame bits contained in the block of 231 error bits The H2TU R and H2TU C generate this bit pattern in a series of discontinuous bursts containing 20 bit errors each including frame bits Those test sets that do not count frame error bits as data bit errors will indicate fewer bits than the H2TU R and H2TU C transmit for a Cl and NI loopback c Sending the Far End NI Activate code is not required in A5LB because it is always activated ECH Q HiGain system returns to its normal unlooped and unarmed state The IOR Power Down code must remain present for the duration of the powerdown mode When this code is removed the To perform the A1LB A2LB and the A5LB test procedures 1 Send the inband Arming and NI LPBK code 11000 to the H2TU C 388 for at least 5 seconds 2 Monitor the output of the H2TU C 388 for the return of the pattern Return of the pattern indicates one of the following the H2TU R has looped up if the SMJK Loopback option is enabled e anexternal NID has looped up if the SMJK Loopback option is disabled and the H2TU C and H2TU R have been armed 3 Verify if possible that the H2TU R Loopback LED is either flashing yellow at 4 times per second
70. running a terminal emulation program A 210 to DB 9 adapter is provided with every unit to facilitate the use of standard RS 232 DB 9 cables see Figure 29 on page 51 Once connected to a maintenance terminal you can access the maintenance provisioning and performance screens To connect to a maintenance terminal 1 Insert the 210 to DB9 adapter into the RS 232 jack on H2TU C 388 front panel 2 Connect an RS 232 cable to the adapter 3 Connect the other end of the cable to the serial port on the maintenance terminal 4 Start a terminal emulation program such as ProComm emulating a VT100 terminal June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning 5 Configure the maintenance terminal to the following communication settings 9600 baud No parity 8 data bits 1 stop bit Hardware flow control to OFF 6 If necessary press CTRL R to refresh the HiGain HDSL2 logon screen The Logon Screen The HiGain maintenance terminal screens allow you to monitor provision and troubleshoot an H2TU C 388 List 1 system To select a menu from the HiGain HDSL2 logon screen Figure 3 on page 12 do one of the following e Type the first letter of the menu e Use the gt arrow keys to select the menu and press ENTER Table 3 summarizes the navigational keys They are also listed in the onscreen Help menu Table 4 on page 12 describes the Logon screen menus Table 3 Navigational Keys for the HiGain Maintenanc
71. s ENTER Performance History at the DS1 Interface 24 The Performance History for the DS1 Interface provides 31 day 48 hour 25 hour and current statistics screens for the H2TU C and the H2TU R as viewed from the H2TU C Figure 12 below and Figure 13 on page 25 are examples of DS1 performance history screens at the remote unit Figure 14 on page 25 is an example of DS1 performance history screens at the line unit Refer to Table 9 on page 27 for descriptions of the kinds of errors reported on DS1 interface screens Monitor Event Log Config Inventory Rlogon Help H2TU R DS 1 31 Day History Page 1 of 3 SES P UAS P PRM NE PRM FE ee li ae ek lb Crore EK ae i a alk ale cle Crem FEE ETE EA A A 7 J JEE 10 10 0 0 P revious Page C l ear History Interface EPAI choices and lt Enter gt to view Statistics 31 Day History ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C System OK Figure 12 H2TU R DS1 31 Day Performance History June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Monitoring System Activity and Performance Monitor Event Log Config Inventory Rlogon Help H2TU R DS 1 48 Hour History Page 1 of 4 ES L SES L UAS L CV P ES P SES P UAS P PRM NE PRM FE N ext Page P revious Page C l ear History Interface H2TU R DS 1 choices and lt Enter gt to view Statistics SERGE Eet ID NNN NNN 04 15 00 12 30 01 H2TU C Figure 13 H2TU R DSI 48 Hour Performance History Monitor Event
72. s Line SES L and Severely Errored Seconds Path SES P counts over the last 24 hours Unavailable Errored Seconds The number of seconds during which the DS1 input signal was absent over a 24 hour period Type of DS1 framing detected at the input stream SF ESF or UNFR Errored Seconds The number of 1 second intervals that contained at least one CRC or LOSW error This value is a running total of the last 24 Hours Severely Errored Seconds The number of 1 second intervals that contain at least 50 CRC errors or one or more LOSW defects An LOSW defect occurs when at least three consecutive HDSL frames contain one or more frame bit errors This value is a running total of the last 24 hours Unavailable Errored Seconds The number of seconds the HDSL2 loop is unavailable This occurs after 10 contiguous HDSL SES and is retired after 10 contiguous non SES seconds This value is arunning total of the last 24 hours Circuit identification ID number Loop Attenuation Indicates the attenuation of the Overlapped PAM Transmission with Interlocking Spectra OPTIS pulse from the distant end The value is related to the loop attenuation at 196 kHz and should be kept under 35 dB Line Power Feed Indicates the HDSL2 line power is on Margin The signal to noise ratio at all HDSL2 ports relative to a 107 Bit Error Rate Margin Alarm Indicates the margin on HDSL2 loop has dropped below the threshold 0 to 15dB as set by th
73. s sscesessessives sate orase aug ERAUS 20 Monitor Screen Descriptions sisi 23 Acronyms Used on the DS1 Performance History Screens 27 Acronyms Used on the HDSL2 Performance History Screens 30 LEES OR e E 32 HDSEZ Alarm Descriptions ss anim Mint EREE EENS EE 33 Event Log Entry Messages List 35 Front Panel System Alarms ummara seen 36 Summary of HiGain Loopback Codes and Activation Methods 55 3 St HH nh re 40 Addressable Repeater Loopback Commands A1LB A2LB ASLB 45 Addressable Repeater Loopback Commands A3LB and AAL Bi 47 H2TUEC 388 Power Parameters s s nso nen s p si ng iesse 49 HDSL2 Cable Attenuation C aTh fine ns te fn hante ner iles tie ba sec 50 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Overview OVERVIEW The HiGain product family from ADC is the industry s first practical implementations of High bit rate Digital Subscriber Line 2 HDSL2 ADC products are fully compliant with the HDSL2 standard 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 HiGain uses the industry s first HDSL2 chipset ANSI T1 E1 4 compliant developed by ADC HiGain HDSL2 products provide 1 552 Mbps transmission on one uncond
74. st 1 as it contains a non volatile RAM NVRAM which stores the system option settings System option settings are retained if shelf power is lost or if the H2TU C 388 List 1 is unplugged USING THE MODE AND SEL BUTTONS Setting Options through MODE and SEL To provision the H2TU C 388 List 1 through the MODE and SEL buttons on the front panel 1 Press the MODE button for 1 second and then release it The front panel display alternately shows the first system parameter and its current setting Press the SEL button to step through all possible settings of the selected parameter After the desired setting has been selected press the MODE button This updates the current displayed parameter to the selected setting then advances to the next configurable parameter After the last parameter has been selected a CONF NO message appears on the front panel display Do one of the following e To cancel the session without saving the requested parameter changes press the MODE button or do nothing After 30 seconds the display returns to its normal mode without saving the new changes e To accept the requested parameter changes press the SEL button A CONF YES message displays and the display returns to its normal mode after saving the new changes H2TU C 388 List 1 June 6 2000 9 Provisioning 152 388 100 02 Issue 2 Resetting to Factory Default Values All user options for the H2TU C 388 List 1 Table 5 on page 17 can be set
75. statistics reset Event Log reset H2TU C Power up down H2TU R Power up down HDSL2 DC pair open begins ends on any segment HDSL2 Ground fault begins ends on any segment HDSL2 HBER alarm threshold crossed on any segment HDSL2 loop attenuation threshold crossed on any HDSL2 I F HDSL2 margin alarm threshold crossed on any HDSL2 I F HDSL2 unavailability begins ends on any segment Master zero reset NTWK DBER alarm 1day threshold crossed of any PM data NTWK DS1 LOS begins ends NTWK PRM FE BER alarm at the remote only 1 day threshold crossed of PRM FE trouble on NTWK far end NTWN DS1 AIS begins ends Power Feed Open begins ends Power Feed Short begins ends RAI begins ends LRAI begins ends RAI CI sent from the remote towards the network H2TU C 388 List 1 June 6 2000 35 Testing TESTING 152 388 100 02 Issue 2 This section provides information about front panel system alarms LOS and AIS response OCTSS test procedure and loopback testing FRONT PANEL SYSTEM ALARMS Table 14 summarizes all possible HiGain system alarms in order of priority as they appear on the front panel When multiple alarms occur the front panel display only reports the highest priority alarm The alarm history screens display alarms also but provide greater detail See Using the Performance Screens to View Alarm Data on page 30 All alarms
76. tions Circuit ID EE H2TU R ID gt YYYY YYYY YYYY YYYY Enter new ID and press lt Enter gt to set ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C Figure 5 Inventory Menu 1 Type I to select the Inventory screen 2 Type the Circuit ID number then press ENTER 3 Type the ID numbers of all other devices listed in the system pressing ENTER after each entry 14 June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Provisioning Configuring the System The Config menu Figure 6 allows you to make the following types of system configuration changes Standard options Figure 7 on page 16 ADC options Figure 8 on page 16 Date and time see Setting Date and Time on page 13 Master clear see Clearing the History Alarm and Event Log Screens on page 21 Reset to factory default configuration Figure 9 on page 20 Monitor Performance Event Log Inventory Rlogon Help Standard Options gt ff PairGain Options gt Date and Time gt Master Clear Set Factory Defaults ID XXXX XXXX XXXX xXxX 04 15 00 12 30 01 H2TU C System OK Figure 6 Configuration Menu Making Changes to Standard and ADC Options Figure 7 and Figure 8 on page 16 show the Standard and ADC configuration options Standard options are those that are supported by HiGain units when connected to units from other vendors ADC options are an extended set of options that are only available when
77. to the factory default values using the MODE and SEL buttons To set the user options to their default values 1 Press the SEL button for 6 seconds until the following message appears DFLT NO 2 Press the SEL button while the DFLT NO message appears The message changes to DFLT YES indicating the factory default values are now in effect and the display returns to the normal mode To terminate the DFLT mode without setting the factory default values do one of the following e Press the MODE button to return to the normal display mode e Wait 30 seconds for the unit to return to the normal display mode Displaying System Parameter Settings To scroll through the current settings of all system parameters press the MODE button for 3 or more seconds The H2TU C 388 displays the following parameters e Software version number e List number e Type of frame pattern received from the DSX 1 e Line code of the signal received from the DSX 1 e All user configured parameter settings Loop attenuation threshold setting e Margin alarm threshold setting Loopback Modes See Loopback Operation on page 39 for instructions on using the MODE and SEL buttons to activate loopbacks USING A MAINTENANCE TERMINAL Connecting to a Maintenance Terminal 10 A miniature 3 pin 210 Bantam type jack on the front panel serves as a craft port and allows connection between the HiGain Line Unit and a maintenance terminal ASCII terminal or PC
78. une 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Testing 4 Press SEL 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 then returns to the normal display mode You can terminate loopbacks manually and exit the MAN LPBK mode by simultaneously pressing the MODE and SEL buttons for 3 or more seconds If no loopback is active the MAN LPBK mode automatically terminates after 30 seconds All loopbacks except dual loopbacks can be initiated by inband commands in the DS1 payload Loopbacks can also be initiated by a command from the HiGain system front panel buttons or maintenance screen selections Therefore whenever a loopback is active the method by which it was activated is indicated in the Loopback and Status screens by the annotation HG or PL adjacent to the identified loopback For example NREM HG indicates that the loopback was initiated by the HiGain system e SMJK loopback commands are only activated by inband commands Dual loopback commands are only activated by the front panel buttons or maintenance screen selections LOOPBACK TEST PROCEDURES The following sections provide step by step test procedures for verifying the integrity of the HDSL2 channels at every module location as well as the DS1 channels to the customer and the local DSX 1 interface
79. until the end of the original warranty period whichever period is greater ADC DISCLAIMS ALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO ITS PRODUCTS AND ANY ACCOMPANYING WRITTEN MATERIALS FURTHER ADC DOES NOT WARRANT THAT SOFTWARE WILL BE FREE FROM BUGS OR THAT ITS USE WILL BE UNINTERRUPTED OR REGARDING THE USE OR THE RESULTS OF THE USE OF THE SOFTWARE IN TERMS OF CORRECTNESS ACCURACY RELIABILITY OR OTHERWISE MODIFICATIONS 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 SAFETY STANDARDS COMPLIANCE The H2TU C 388 modules have been tested and verified to comply with the applicable sections of the following safety standards e GR 63 CORE Network Equipment Building System NEBS Requirements e GR 1089 CORE Electromagnetic Compatibility and Electrical Safety e UL 1459 3rd Edition and CSA C22 2 225 M90 Telecommunications Equipment Electronics and Electrical Safety For technical assistance refer to Appendix D Product Support on page 54 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 7
80. uperFrame SF Extended SuperFrame ESF Unframed UNFR The current loop attenuation threshold setting measured in dB The list number xx The current margin threshold setting measured in dB The software version number x xx a System information messages are displayed in scroll mode To scroll through system information messages press the MODE button for 3 or more seconds June 6 2000 H2TU C 388 List 1 152 388 100 02 Issue 2 Installation INSTALLATION Upon receipt of the equipment 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 H2TU C 388 CO Shelf Figure 2 Installing the H2TU C 388 into a Shelf When installing an H2TU C in a chassis be sure to wear an antistatic wrist strap Avoid touching components on the circuit board b 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 388 List 1 DSX 1 output ports to the cross connect panel must be grounded at both ends gt 1 Align the H2TU C 388 List 1 with the enclosure slot guides then push the unit in until it touches the backplane card edge connector 2 Press down on the H2TU C 388 front panel to properly seat it H2TU C 388 List 1 June 6 2000 7 Installation 152 388 100 02 Issue 2 VERIFICATION Once the H2TU
81. using HiGain units exclusively For a description of each option and a list of possible option settings refer to Table 5 on page 17 and Table 6 on page 18 To make changes to these options 1 2 3 4 5 Type C to select the Config menu Use the M and 4 arrow keys to select Standard Options or ADC Options and press ENTER Use the arrow keys to select an option Press the SPACEBAR to cycle through the available settings for that option Press ENTER to activate your choice H2TU C 388 List 1 June 6 2000 15 Provisioning 152 388 100 02 Issue 2 Monitor Performance Event Log Inventory Rlogon Help pback Timeout LBTO p Attenuation Threshold LATT Margin Threshold MARG DS1 Frame Formatting FRMG DS1 Line coding DS1 H2TU C Equalization EQL H2TU R Line Buildout RLBO Alarm Pattern ALMP H2TU R TLOS Loopback TLOS Network Loopback Pattern NLBP Press lt Space gt to cycle through settings and lt Enter gt to activate ID XXXX XXXX XXXX XXXX 04 15 00 12 30 01 H2TU C Monitor Performance Event Log Inventory Rlogon Standard Options n Options gt Line Power Feed PWRF Remote Provisioning RTPV Bipolar Violation Transparency BPVT DS1 BER DBER HDSL2 BER Threshold HBER Special Loopback Mode SPLB SmartJack Loopback LPBK Remote Disconnect Alarm RDA Press lt Space gt to cycle through settings and lt Enter gt to activate ID XXXX KXKXX KXKXKX

ADC H2TU-C-388 User's Manual

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