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Abbreviations

150-451-103-02, Revision 02

34

September 18, 1998

 HDU-451 List 3

NID

 Network Interface Device

NIU

Network Interface Unit

NREM

Network Remote Loopback

NVRAM

Non-volatile Random Access Memory

POTS

Plain Old Telephone Service

RCV

Receive

RDA

Remote DS1 Alarm

RLEV

Receive Level

RLOS

Receive Loss of Signal

SAIS

SmartJack AIS

SCURR

Sealing Current

SF

Super Frame

S/N

Signal-to-Noise

SPLB

Special Loopback

TEC

Total Error Count

TLOS-LB

Transmit Loss of Signal-Loopback 

TSEC

Total System Error Count

TSGR

Transport System Generic Requirements

UAS

Unavailable Seconds

UL

Underwriters Laboratory

W

Watts

XMT

Transmit

ZBTSI

Zero Byte Time Slot Interchange

Summary of Contents for 150-1143-03

Page 1: ...NEERING SERVICES TECHNICAL PRACTICE 150 451 103 02 SECTION 150 451 103 02 Model List Number Part Number CLEI Code HDU 451 3 150 1143 03 T1R3L1W8AA 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 32 for a list of abbreviations used throughout this technical practice Notes contain information about special circ...

Page 4: ...Using This Manual 150 451 103 02 Revision 02 iv September 18 1998 HDU 451 List 3...

Page 5: ...on 9 Installation ____________________________________________ 10 Inspecting Your Shipment 10 Installing the HDU 451 List 3 10 Troubleshooting 11 Isolating a Problem 11 Solutions to Common Problems 12...

Page 6: ...cifications __________________________________29 Pinouts_________________________________________________30 Abbreviations ___________________________________________32 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 23 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: ...series to triple the normal CSA range 36 000 feet on 24 AWG The HDU 451 mounts in a single slot of any industry standard 400 mechanics shelf or in equivalent enclosures manufactured by PairGain Techn...

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

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 3 September 18 1998 7 FRONT PANEL Figure 3 shows the front panel of the HDU 451 List 3 and Table 4 describes its features Figure 3 The HDU 451 List 3...

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 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 HDSL input part r...

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: ...System Settings Displays all system settings View System Settings on page 22 E View Performance Data Provides access to screens displaying the Errored Seconds ES and Unavailable Seconds UAS for each s...

Page 28: ...us screen displays Figure 7 Span 1 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 LOOPBACK OFF HDSL 1 HDSL 2 HDSL 1 HDSL 2 cur min ma...

Page 29: ...te BER of 10 7 the first value is the current margin the second is the minimum margin since last cleared the third is the maximum margin since last cleared Pulse ATTN Indicates the attenuation of the...

Page 30: ...Count The number of seconds during which the DS1 input signal was absent 125 or more consecutive 0s Frame Type Type of DS1 framing used on the input stream SF ESF Unframed or No Activity Code Type Typ...

Page 31: ...settings of either ENA or DIS for SmartJack loopback where signal from DS1 is looped back at the HRU to the DSX 1 Special LBPK Indicates the special loopback settings of either Generic loopback GNLB...

Page 32: ...ther 20 60 or 120 minutes after initiation Alarm Indicates whether alarms are enabled or DIS DS1 Code Indicates one of three settings Auto B8ZS or AMI Framing Indicates whether framing is either Auto...

Page 33: ...000 000 000 000 23 15 000 000 000 000 000 000 000 000 000 000 000 000 23 30 000 000 000 000 000 000 000 000 000 000 000 000 23 45 000 000 000 000 000 000 000 000 000 000 000 000 00 00 000 000 000 000...

Page 34: ...SECONDS DS1 HDSL 1 HDSL 2 HLU HRU HLU HDU1 HLU HDU1 05 03 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 05 04 00000 00000 00000 00000 00000 00000 00000 00000 00000 00000 000...

Page 35: ...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 36: ...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 37: ...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 38: ...t 3 PINOUTS The figures in this section show the pinouts for the HDU 451 List 3 Figure 12 on page 30 shows the pinouts for the HDU 451 connector Figure 13 on page 31 shows the pinouts for the HDU 451...

Page 39: ...150 451 103 02 Revision 02 Pinouts HDU 451 List 3 September 18 1998 31 Figure 13 HDU 451 DB 9 Pin Outs...

Page 40: ...ire Gauge B8ZS Bipolar with 8 zero Substitution BDG Bridged BER Bit Error Rate BERT BIT Error Rate Threshold BPV Bipolar Violation BPVT Bi polar Violation Transparency CI Customer Interface CO Central...

Page 41: ...me Data Link FRM Frame HCDS High Capacity Digital Service HDSL High bit rate Digital Subscriber Line HDU HiGain Doubler Unit HLU HiGain Line Unit HRE HiGain Remote Enclosure HRU HiGain Remote Unit I C...

Page 42: ...rvice RCV Receive RDA Remote DS1 Alarm RLEV Receive Level RLOS Receive Loss of Signal SAIS SmartJack AIS SCURR Sealing Current SF Super Frame S N Signal to Noise SPLB Special Loopback TEC Total Error...

Page 43: ...k within 30 minutes of initiating the request In addition PairGain maintains a computer bulletin board system for obtaining current information on PairGain products product troubleshooting tips and ai...

Page 44: ...icing FCC COMPLIANCE This unit complies with the limits for Class A digital devices pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful inte...

Page 45: ...e user to be notified that any changes or modifications made to this device that are not expressly approved by PairGain Technologies Inc may void the user s authority to operate the equipment All wiri...

Page 46: ...Product Support 150 451 103 02 Revision 02 38 September 18 1998 HDU 451 List 3...

Page 47: ...150 451 103 02 Revision 02 Product Support HDU 451 List 3 September 18 1998 39...

Page 48: ...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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