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List of Figures

150-412-107-03, Revision 03

vi

November 19, 1999

HRU-412 List 7

L

IST

OF

F

IGURES

1. HRU-412 List 7 Front Panel ...................................................................3

2. HRU-412 List 7 Back Panel ...................................................................7

3. Connecting to a Maintenance Terminal................................................ 11

4. HRU-412 List 7 Loopbacks .................................................................. 15

5. HRU-412 List 7 Pinouts ....................................................................... 19

6. Craft Port Wiring .................................................................................. 20

7. HRU-412 List 7 Block Diagram ........................................................... 23

L

IST

OF

T

ABLES

1. HRU-412 List 7 Front Panel Components..............................................4

2. Rear Panel Components..........................................................................8

3. Remote Terminal Main Menu Items..................................................... 14

4. HDSL Loss Over Cables....................................................................... 21

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Содержание HIGAIN HRU-412

Страница 1: ...HIGAIN REMOTE UNIT PAIRGAIN TECHNOLOGIES INC ENGINEERING SERVICES TECHNICAL PRACTICE SECTION 150 412 107 03 Model List Number Part Number CLEI Code HRU 412 7 150 1103 07 T1LIEV04 ...

Страница 2: ... or disclosed in whole or in part without the written consent of PairGain Information furnished by PairGain Technologies is believed to be accurate and reliable However no responsibility is assumed by PairGain Technologies for its use nor for any infringement of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent...

Страница 3: ...een damaged in transit immediately report the extent of damage to the transportation company and to PairGain Order replacement equipment if necessary Check the packing list to ensure complete and accurate shipment of each listed item If the shipment is short or irregular contact PairGain as described in the Warranty located inside the back cover If you must store the equipment for a prolonged peri...

Страница 4: ...Inspecting the Shipment 150 412 107 03 Revision 03 iv November 19 1999 HRU 412 List 7 ...

Страница 5: ...________________ 11 Connecting to a Maintenance Terminal 11 Logging On and Off 13 Remote Terminal Main Menu 14 Loopbacks _____________________________________________ 15 Appendix A Specifications_______________________________ 18 Pinouts 19 Craft Port 20 Insertion Loss 21 Appendix B Functional Description_______________________ 22 Operational Capabilities 22 Local and Line Powering 23 Appendix C P...

Страница 6: ...RU 412 List 7 Back Panel 7 3 Connecting to a Maintenance Terminal 11 4 HRU 412 List 7 Loopbacks 15 5 HRU 412 List 7 Pinouts 19 6 Craft Port Wiring 20 7 HRU 412 List 7 Block Diagram 23 LIST OF TABLES 1 HRU 412 List 7 Front Panel Components 4 2 Rear Panel Components 8 3 Remote Terminal Main Menu Items 14 4 HDSL Loss Over Cables 21 ...

Страница 7: ...gh bit rate Digital Subscriber Line HDSL transmission technology The HRU 412 List 7 features Customer Interface CI Front panel DS1 and HDSL LEDs Front panel loopback button Signature resistance on DS1 and HDSL ports Generic and addressable repeater Loopback activation codes Metallic SmartJack loopback conforms to TR TSY 000312 Provisioning switches for customer premise equipment CPE current receiv...

Страница 8: ...y of delivering T1 High Capacity Digital Service HCDS to customers over copper pairs The HiGain system can be deployed on two unconditioned non loaded copper pairs without repeaters and without the need for bridged tap removal or binder group separation A HiGain system operates with a variety of other T1 POTS Digital Data Service DDS equipment or other HiGain systems sharing the same cable binder ...

Страница 9: ...evision 03 Front and Rear Panel HRU 412 List 7 November 19 1999 3 FRONT AND REAR PANEL Figure 1 shows the front panel of the HRU 412 List 7 Table 1 on page 4 describes its components Figure 1 HRU 412 List 7 Front Panel ...

Страница 10: ...ck in the HRU 412 TLOS Enabled Loopback LB LEDs The LB NET LED is steady green indicating the HRU 412 is in a loopback state where the signal from the network is looping back to the network The LB CIS LED is steady yellow indicating the HRU 412 is in a loopback state in which the signal from the customer interface CI is looping back to the CI Code LEDs The B8ZS LED is steady green indicating that ...

Страница 11: ...LED flashes green while HDSL Loop 1 is synchronizing with the HLU The LED is steady green indicating that Loop 2 is properly synchronized with the HLU The LP2 MAR LED is steady yellow when the HRU 412 margin on HDSL Loop 2 has dropped below the user defined margin threshold value This indicator flashes yellow at a slow rate indicating that a loss of sync word LOSW exists in Span 1 Loop 2 of the HD...

Страница 12: ...the version of the product New configuration numbers usually accompany changes in the last two characters of the CLEI code The configuration number can also be found on a small bar label that also contains the Julian date code The configuration number appears as either a stand alone CFG xx number or as a 15 character number comprised of the part number and a 3 character extension For example the n...

Страница 13: ... 412 107 03 Revision 03 Front and Rear Panel HRU 412 List 7 November 19 1999 7 The HRU 412 List 7 back panel features are shown in Figure 2 Table 1 describes the features Figure 2 HRU 412 List 7 Back Panel ...

Страница 14: ...el display This condition remains until a valid T1 signal is received from the CPE or until the 3 in 5 in band loopdown command is issued Once the TLOS initiated loopback occurs it will not reoccur until the CPE T1 signal has been reapplied and then removed This feature prevents the HRU 412 from oscillating into and out of TLOS loopback when a loopdown command is issued in the absence of a T1 sign...

Страница 15: ...nts in the following shelves HRE 454 four unit HRE 450 single unit 400 Mechanics type shelves To install the HRU 412 List 7 1 Ensure that the shelf is correctly mounted and wired refer to the shelf s technical practice for additional information 2 Slide the HRU 412 into the card guides for the desired slot then push the unit back until it touches the backplane card edge connectors 3 Place your thu...

Страница 16: ...the HLU Measure the return loop signal to verify it is error free If the signal is not error free remove the HRU 412 from loopback by pressing the loopback button for five seconds The LB NET LED should be off 3 Have the CO send the HLU 4 in 7 in band loopup NLOC for five seconds Verify that the HLU front panel displays NLOC 4 Repeat step 2 If the test passes a problem exists in the cable pair or i...

Страница 17: ...nel RS 232 craft port Remote login creates menus and screens for the HRU 412 that are identical to those at the HLU Once logged on you can access the Remote Terminal Main Menu screens to view system settings and status and initiate loopbacks You can also access the HRU 412 performance monitoring capabilities CONNECTING TO A MAINTENANCE TERMINAL Figure 3 Connecting to a Maintenance Terminal ...

Страница 18: ... connector on the HRU 412 2 Connect the other end of the terminal cable to the console port on the maintenance terminal 3 Start a terminal emulation program such as ProComm emulating a VT 100 terminal 4 Configure the maintenance terminal to the following communication settings 1200 to 9600 baud No parity 8 data bits 1 stop bit Hardware flow control to OFF If using the Microsoft Windows terminal em...

Страница 19: ...screens Depending on the HLU attached to the HRU 412 List 7 remote provisioning may be available Refer to the HLU technical practice for details The Performance Monitoring Menu items provide special network surveillance features that monitor network performance and help track problems 3 From the Remote Terminal Main Menu screen type the appropriate letter to select the items you wish to view see T...

Страница 20: ...tings Allows viewing of all system settings View Performance Data Allows viewing of the Errored Seconds ES and Unavailable Seconds UAS for the HLU to HRU 412 span non doubler applications and any additional spans doubler applications in 15 minute intervals over a 4 hour time period View Performance History Allows viewing of the ES and UAS for the HLU to HRU 412 span non doubler applications and an...

Страница 21: ...upports 4 types of loopbacks see Figure 4 TLOS transmit loss of signal NREM network remote loopback CLOC customer local loopback SMJK SmartJack Loopback tests can be initiated by using in band codes or maintenance terminal commands or by faceplate pushbutton activation Figure 4 HRU 412 List 7 Loopbacks ...

Страница 22: ... The HiGain system is in the AIS ENA SmartJack loopback state It remains in this state until a loopdown command is detected or the default time out period if enabled at the HLU expires When the HRU 412 List 7 is in the AIS ENA SmartJack metallic loopback state the T1 input LOS Code and Frame monitoring circuits are connected to the unframed AIS pattern which is being looped back to these circuits ...

Страница 23: ...ands include 3 in 7 command 16 bit addressable repeater commands or activation using the front panel MODE and SEL buttons When T1 loopback tests are made on the HiGain system with external metallic loopback connections at either end the DS1 code at the metallic loopback interface may be different from the DS1 code at the opposite end when the DS1 user option is set to AUTO For example if the HRU 4...

Страница 24: ...tection Secondary surge and power cross protection on all DS1 and HDSL ports Environmental Operating Temperature 40 C to 65 C Humidity 5 to 95 non condensing Mounting Single wide 400 Mechanics type shelf DS1 One way Delay 220 microseconds per span Line Impedance 100 Pulse Output 0 dB RLEV 0 15 dB RLEV 15 Input Level 22 5 dB Line Rate 1 544 Mbps 200 bps Output Wander MTIE and TVAR Compliant with Se...

Страница 25: ...12 107 03 Revision 03 Appendix A Specifications HRU 412 List 7 November 19 1999 19 PINOUTS The HRU 412 List 7 pinouts are shown in Figure 5 The active pins are shown in black Figure 5 HRU 412 List 7 Pinouts ...

Страница 26: ...Appendix A Specifications 150 412 107 03 Revision 03 20 November 19 1999 HRU 412 List 7 CRAFT PORT Figure 6 shows the craft port wiring diagram Figure 6 Craft Port Wiring ...

Страница 27: ...he HiGain line unit and the HiGain remote unit Without specific loop insertion loss data add 3 dB for each bridged tap and 1 dB for each cable gauge change The DC cable resistance determines the simplex powering resistance path of the loops The maximum allowable resistance for a HiGain system is 800 over two HDSL simplex loops For example where 12 kft AWG 24 equals 34 08 dB insertion loss resistan...

Страница 28: ...copper wires between an HLU and an HRU that comprises one HiGain system The HRU 412 List 7 power supply converts the power feed voltage received on the simplex pairs or the 48 Vdc input when locally powered to voltages and currents required by the HRU 412 circuitry The power supply generates 5 5 and 30 Vdc outputs The 30 Vdc output is converted to a 60 mA current feed to power a Network Interface ...

Страница 29: ...ooses the local 48 Vdc power source if present It defaults to line power only in the absence of local power Some older HLUs automatically turn off their line powering when connected to the HRU 412 List 7 The older versions of the HLU 231 Lists 1 2 3 3A and 4 must have their PWRF user option disabled for them to work properly with a locally powered HRU 412 List 7 Refer to the appropriate HLU techni...

Страница 30: ... 2005 Wall Mount Power Supply or equivalent is capable of powering two HRU 412 List 7 units with the I CPE option switch set to 0 mA or one HRU 412 List 7 with the I CPE option switch set to 60 mA The HRU 412 List 7 can be used in limited 2000 and unlimited full CSA three span line powering applications The line units and doublers that are compatible with limited and unlimited line powering are sh...

Страница 31: ...ly by a Customer Service Engineer At other times a request for technical assistance is handled by an on duty Customer Service Engineer through a callback process This process normally results in a callback within 30 minutes of initiating the request WORLD WIDE WEB PairGain product and company information can be found at http www pairgain com using any Web browser To download PairGain product manua...

Страница 32: ...irgain com 3 Include the following information in writing along with the equipment you are returning Company name and address Contact name and telephone number The shipping address to which PairGain should return the repaired equipment The original purchase order number A description of the equipment that includes the model and part number of each unit being returned as well as the number of units...

Страница 33: ...ping carton 5 Write PairGain s address and the RMA Number you received from the RMA Department clearly on the outside of the carton and return to PairGain Technologies Inc 14352 Franklin Ave Tustin CA 92780 7013 Attention RMA Number All shipments are to be returned prepaid PairGain will not accept any collect shipments ...

Страница 34: ...nstitute AWG American Wire Gauge B8ZS Bipolar with 8 zero Substitution BPV Bipolar Violation CI Customer Installation CLEI Common Language Equipment Identifier CLOC Customer Local Loopback CO Central Office CPE Customer Premises Equipment CRC Cyclic Redundancy Check CSA Carrier Service Area DDS Digital Data Service DIS Disabled DS0 Digital Signal level 0 DS1 Digital Signal level 1 DSX 1 DS1 Cross ...

Страница 35: ...ss of Signal LOSW Loss of Sync Word MAL Margin Alarm Loop NEBS Network Equipment Building System NI Network Interface NID Network Interface Device NLOC Network Local Loopback NREM Network Remote Loopback POTS Plain Old Telephone Service PWRF Power Feed RAIS Remote Alarm Indicating Signal RCV Receive RLOS Remote Loss of Signal RMA Return Material Authorization SF Super Frame SMJK SmartJack TLOS LB ...

Страница 36: ......

Страница 37: ... repair the unit If it fails replace it with another unit and return the faulty unit to PairGain for repair Any modifications of the unit by anyone other than an authorized PairGain representative voids the warranty If a unit needs repair call PairGain for a Return Material Authorization RMA number and return the defective unit freight prepaid along with a brief description of the problem to PairG...

Страница 38: ...Corporate Office 14402 Franklin Avenue Tustin CA 92780 Tel 714 832 9922 Fax 714 832 9924 For Technical Assistance 800 638 0031 ...

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