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Abbreviations

150-451-104-02, Revision 02

30

September 18, 1998

 HDU-451 List 4

Figure 13.

HDU-451 DB-9 Pin Outs. 

A

BBREVIATIONS

2B1Q

2Binary1Quaternary

AIS

Alarm Indication Signal

ALM

Alarm

ALMP

Alarm Pattern Option

AMI

Alternate Mark Inversion

AWG

American Wire Gauge

B8ZS

Bipolar with 8-zero Substitution

BDG

Bridged

Summary of Contents for 150-1143-04

Page 1: ...NEERING SERVICES TECHNICAL PRACTICE 150 451 104 02 SECTION 150 451 104 02 Model List Number Part Number CLEI Code HDU 451 4 150 1143 04 T1R5AJHEAA L RS 232 1 2 1 2 V TELEPHONE CO PROPERTY PairGain LOO...

Page 2: ...ocument is company private to PairGain Technologies Inc and shall not be modified used copied reproduced or disclosed in whole or in part without the written consent of PairGain Other product names me...

Page 3: ...o types of messages identified by icons appear in the text See Abbreviations on page 30 for a list of abbreviations used throughout this technical practice Notes contain information about special circ...

Page 4: ...Using This Manual 150 451 104 02 Revision 02 iv September 18 1998 HDU 451 List 4...

Page 5: ...on 9 Installation ____________________________________________ 10 Inspecting Your Shipment 10 Installing the HDU 451 List 4 10 Troubleshooting 11 Isolating a Problem 11 Solutions to Common Problems 12...

Page 6: ...cifications __________________________________28 Pinouts_________________________________________________29 Abbreviations ___________________________________________30 Product Support_________________...

Page 7: ...Figure 4 HiGain Loopbacks 9 Figure 5 Doubler Log On Screen 17 Figure 6 HDU 451 Main Menu 18 Figure 7 Span 1 Status screen 20 Figure 8 System Settings Screen 22 Figure 9 Performance Data Span 1 1 or 2...

Page 8: ...he HRE 423 and HRE 450 Enclosures 5 Table 3 Deployment Rules for the HRE 454 Enclosure 6 Table 4 The Features of the HDU 451 Front Panel 8 Table 5 HLU 451 Status Menu Messages 13 Table 6 Terminal Navi...

Page 9: ...applicable requirements of TR TSY 000063 Network Equipment Building System NEBS Generic Equipment requirements and TR TSY 000499 Transport System Generic Requirements TSGR DESCRIPTION AND FEATURES HDU...

Page 10: ...bridged tap and 1 dB for each cable gauge change The HiGain system operates with any number of other T1 POTS Digital Data Service DDS or other HiGain Systems sharing the same cable binder group In or...

Page 11: ...the HDSL output via the Output Span Voltage Control relay to power one other HiGain module either a second HDU or the remote HRU The maximum power dissipation of the HDU 451 is 6 watts OUTSIDE ENCLOS...

Page 12: ...used For example if slots 1 and 2 or 3 and 4 are used in the HRE 454 instead of slots 2 and 4 then use the deployment rules that apply when slots 1 2 and 4 are occupied All of the applications in Tabl...

Page 13: ...per TR TSY 000057 None Inside underground or fully shaded Max Ambient Temp HRE 423 Vertical 1 2 3 Full 120 F Vertical 1 2 3 None 130 F Vertical 1 2 Full 130 F Vertical 1 2 None 140 F Vertical 2 Full...

Page 14: ...round or fully shaded Max Ambient Temp Vertical 1 2 3 4 Full 115 F Vertical 1 2 3 4 None 125 F Vertical 1 2 4 Full 125 F Vertical 1 2 4 None 135 F Vertical 2 4 Full 135 F Vertical 2 4 None 145 F Verti...

Page 15: ...02 Revision 02 Functional Description HDU 451 List 4 September 18 1998 7 FRONT PANEL Figure 3 shows the front panel of the HDU 451 List 4 and Table 4 describes its features Figure 3 The HDU 451 List 4...

Page 16: ...L input line pairs HDSL IN 1 and HDSL IN 2 These indicators have the following states Flashing Green indicates synchronization is being attempted with the HLU Green indicates HDSL frame synchronizatio...

Page 17: ...P in band loop up command set for the four doubler loopbacks 110000 2 in 6 for NDU1 111000 3 in 6 for NDU2 111100 4 in 6 for CDU1 and 111110 5 in 6 for CDU2 Refer to the appropriate HLU practice for m...

Page 18: ...our slot outdoor above or below ground HRE 450 single slot outdoor above ground HRE 420 single slot indoor HRE 422 two slot single width indoor The HDU 451 also mounts in any industry standard 400 typ...

Page 19: ...ing a problem Table 5 on page 13 shows the messages that can appear on the line unit front panel display Isolating a Problem The front panel HDSL IN loop 1 and loop 2 LEDs identify the cable pairs com...

Page 20: ...e customer site is installed and operational in the central office All HRU Remote Units except List 8 have an HDSL input signature resistance of 180 kOhms between the Tip and Ring on each loop The HDS...

Page 21: ...rm condition is in effect LOSW Loss of Sync Word One of the HDSL loops has lost synchronization H1ES HDSL Loop 1 Errored Second Loop 1 s CRC has exceeded the user selected Errored Seconds threshold H2...

Page 22: ...1 Loopback Loopback at Doubler 1 towards network initiated from CO network by a family of special loopbacks SPLP or from maintenance terminal or by depressing both the MODE and SEL HLU front panel pus...

Page 23: ...U1 Customer Doubler 1 Loopback Loopback a Doubler 1 towards CI initiated from CPE customer by a family of special loopbacks SPLP or from maintenance terminal or by depressing both the MODE and SEL HLU...

Page 24: ...data bits 1 stop bit Hardware Flow Control set to None VT Terminal Emulation LOGGING ON AND USING THE TERMINAL MENUS When you log on to the terminal menus the terminal is actually logged on to the HLU...

Page 25: ...erminal Main Menu NAVIGATING THE TERMINAL MENUS Table 6 lists the keys you can use on the dumb terminal keyboard to navigate through the terminal menus and screens Not all keys function on all the men...

Page 26: ...l Navigational Keys Key Function Logs onto the Remote Terminal menus Exits the current menu Updates a report Displays the next Span Status screen Displays the previous page of a report Displays the ne...

Page 27: ...nformation about the HDSL line between the HLU HDU 451 and the HRU View Span Status on page 19 C System Settings Displays all system settings View System Settings on page 22 E View Performance Data Pr...

Page 28: ...formation for the next available span Table 8 describes the fields of the Span Status screen SPAN 1 STATUS HLU ver1 6 006D HDU1 ver2 5 0004 TIME 00 30 50 DATE 01 07 97 CIRCUIT ID P ALARMS NONE LOOPBAC...

Page 29: ...ignal than the 196 kHz loss PPM Offset Indicates the relative offset of the crystal oscillator in the HDU 451 from the HLU crystal oscillator Any value between 100 is adequate 24 Hour ES The number of...

Page 30: ...Settings screen displays Figure 8 System Settings Screen To exit this screen and return to the Main Menu type then press Table 9 describes the fields of the System Settings screen SYSTEM SETTINGS TIME...

Page 31: ...TO HIGH or LOW ZBTSI Indicates whether ZBTS is either On or Off An On setting tells the system that the ESF frame is operating in its Zero Byte Time Slot Interface ZBTSI mode An Off setting tells the...

Page 32: ...HDSL 1 HDSL 2 HLU HRU HLU HDU1 HLU HDU1 23 00 000 000 000 000 000 000 000 000 000 000 000 000 23 15 000 000 000 000 000 000 000 000 000 000 000 000 23 30 000 000 000 000 000 000 000 000 000 000 000 0...

Page 33: ...to view information for the next available span Time 02 51 24 7 DAY HISTORY CIRCUIT ID P SPAN 1 ERRORED SECONDS UNAVAILABLE SECONDS DS1 HDSL 1 HDSL 2 HLU HRU HLU HDU1 HLU HDU1 05 03 00000 00000 00000...

Page 34: ...lable span Table 10 describes the fields of the Alarm History screen ALARM HISTORY TIME 02 57 36 DATE 05 10 05 CIRCUIT ID P Type First Last Current Count LOS DS1 HLU 05 10 05 00 00 05 10 05 02 41 ALAR...

Page 35: ...dition number of alarms Span1 LOSW HDSL2 First and last instance of LOSW on HDSL2 Current condition number of alarms Span1 ES HDSL1 First and last instance of ES on HDSL1 Current condition number of a...

Page 36: ...Startup Time 15 seconds typical 30 seconds maximum Power Consumption 6 watts maximum Electrical Protection Secondary surge and power cross protection on all HDSL ports Operating Temperature and Humidi...

Page 37: ...29 PINOUTS The figures in this section show the pinouts for the HDU 451 List 4 Figure 12 on page 29 shows the pinouts for the HDU 451 connector Figure 13 on page 30 shows the pinouts for the HDU 451...

Page 38: ...1998 HDU 451 List 4 Figure 13 HDU 451 DB 9 Pin Outs ABBREVIATIONS 2B1Q 2Binary1Quaternary AIS Alarm Indication Signal ALM Alarm ALMP Alarm Pattern Option AMI Alternate Mark Inversion AWG American Wire...

Page 39: ...CRC Cyclic Redundancy Check CSA Carrier Service Area CSU Channel Service Unit dB Decibel DCE Data Circuit Terminating Equipment DIS Disable DL Data Link DLC Data Link Control DS1 Digital Service Leve...

Page 40: ...Light Emitting Diode LOS Loss of Signal LOSW Loss of Sync Word LPWR Local Power LVL Level NEBS Network Equipment Building System NET Network NI Network Interface NID Network Interface Device NIU Netw...

Page 41: ...ailable 24 hours a day 7 days a week by contacting PairGain Customer Service Engineering group at S N Signal to Noise SPLB Special Loopback TEC Total Error Count TLOS LB Transmit Loss of Signal Loopba...

Page 42: ...Y PairGain Technologies warrants this product to be free of defects and to be fully functional for a period of 60 months from the date of original shipment given correct customer installation and regu...

Page 43: ...area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Refer to the installation section of the appropriate instruction man...

Page 44: ...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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