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Model
HLU-431
E
NGINEERING
H
G
L
I
AIN
INE
List Number
1E
HLU 431
H G
I AIN
HDSL
MODE
STATUS
BRG
SPAN
D
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1
BRG
SPAN
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PairGain
P
G
T
AIR
AIN
ECHNOLOGIES
S
ERVICES
™150-431-115-01"¨
S
150-431-115-01
ECTION
U
NIT
Part Number
150-1504-15
LINE UNIT
MARGIN
dB
SEL
SETUP
XMT
RCV
R
S
2
3
2
, I
.
NC
T
P
ECHNICAL
RACTICE
CLEI Code
T1L2FVDAAA
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Table of Contents
Related Manuals for PairGain HiGain HLU-431 1E
Summary of Contents for PairGain HiGain HLU-431 1E
- Page 1 Model List Number Part Number CLEI Code HLU-431 150-1504-15 T1L2FVDAAA HLU 431 LINE UNIT I AIN MARGIN HDSL MODE SETUP STATUS SPAN SPAN PairGain ECHNOLOGIES NGINEERING ERVICES ECHNICAL RACTICE ™150-431-115-01"¨ 150-431-115-01 ECTION...
- Page 2 PairGain and HiGain are registered trademarks of PairGain Technologies, Inc. Information contained in this document 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.
- Page 3 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. If you must store the equipment for a prolonged period, store the equipment in its original container.
- Page 4 Inspecting Shipment 150-431-115-01, Revision 01 September 22, 1998 HLU-431 List 1E...
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Page 5: Table Of Contents
150-431-115-01, Revision 01 Table of Contents ABLE OF ONTENTS Overview ____________________________________________________________________________ 1 New Features............................1 Applications ............................2 Applications without HiGain Doublers ................2 Applications with HiGain Doublers ..................3 Product Description..........................3 Front Panel...........................4 Status LED...........................5 Front Panel Display ......................6 HLU-431 List 1E Card Connector..................8 Network Management Control Bus ..................8 Fuse Alarm ..........................8 System Alarm Relay Output....................9... - Page 6 Table of Contents 150-431-115-01, Revision 01 System Settings ..........................21 DS0 Blocking Option......................21 DS1 Line Code Option...................... 22 Margin Alarm Threshold ....................22 HAIS Selections ........................ 23 HDSL Line Voltage Operation ..................23 Ground Fault Detect......................23 System Settings Screen Options ..................24 Loopback Menu..........................
- Page 7 150-431-115-01, Revision 01 Table of Contents Appendix A - Technical Specifications ___________________________________________________ 46 Appendix B - Abbreviations ___________________________________________________________ 47 Appendix C - Functional Operation _____________________________________________________ 49 Power Consumption without Doublers ....................50 Power Consumption: Without Doublers................50 Maximum Power Dissipation:................50 Maximum Power Consumption: .................50 Maximum Current Drain:..................50 Power Consumption: With Doublers.................51 Appendix D - Compatibility ___________________________________________________________ 52...
- Page 8 List of Figures 150-431-115-01, Revision 01 IST OF IGURES Figure 1. HLU-431 List 1E Front Panel ......................4 Figure 2. HLU-431 List 1E Card-Edge Connector..................8 Figure 3. Installing the HLU-431 into a Shelf ....................9 Figure 4. DB-9 RS-232 I/O Pinouts....................... 12 Figure 5.
- Page 9 150-431-115-01, Revision 01 List of Tables IST OF ABLES Table 1. HDSL Loss Over Cables ........................2 Table 2. Front Panel Components and Labels....................5 Table 3. Status LED Descriptions ........................5 Table 4. Front Panel Display Messages ......................6 Table 5. Navigational Keys on the Maintenance Terminal ................13 Table 6.
- Page 10 List of Tables 150-431-115-01, Revision 01 September 22, 1998 HLU-431 List 1E...
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Page 11: Overview
Overview VERVIEW ® ® The PairGain HiGain HLU-431 List 1E is the Central Office (CO) side of a repeaterless, T1 transmission system. When used in conjunction with a remote unit or HRU, the system provides 1.544 Mbps transmission on two unconditioned copper pairs over the full Carrier Service Area (CSA) range. This line unit can be used in applications with or without HDUs. -
Page 12: Applications
Overview 150-431-115-01, Revision 01 PPLICATIONS HiGain systems provide a cost-effective, easy-to-deploy method for delivering T1 High Capacity Digital Service (HCDS) over metallic pairs. • The service is deployed over two unconditioned, non-loaded copper pairs, yet it demonstrates a quality that is competitive with fiber optics. -
Page 13: Applications With Higain Doublers
150-431-115-01, Revision 01 Overview Applications with HiGain Doublers For doubler applications, one or two doublers may be used in the HDSL loops between the HLU and HRU for a total of up to three spans. For compatibility guidelines on mixing newer doublers with older HRU and HLU models, refer “HiGain Doubler Circuit Deployment”... -
Page 14: Front Panel
HDSL MODE System option buttons SETUP STATUS Status LED SPAN Receive and transmit jacks DSX-1 SPAN Craft port Barcode List number Retaining latch Warranty Control PairGain number Figure 1. HLU-431 List 1E Front Panel September 22, 1998 HLU-431 List 1E... -
Page 15: Status Led
150-431-115-01, Revision 01 Overview Table 2. Front Panel Components and Labels Front Panel Feature Function Front panel display Displays four-character status, provisioning, and alarm system messages. System option buttons Permits the user options to be monitored and modified without the need of a maintenance (MODE and SEL) terminal. -
Page 16: Front Panel Display
Overview 150-431-115-01, Revision 01 Front Panel Display The front panel display is used with the MODE and SEL buttons to display system diagnostic messages. Refer to Table 4 for a listing of the four character messages. The front panel display turns on when power is initially applied to the HLU-431. To conserve power, the display only remains on for 4 minutes. - Page 17 150-431-115-01, Revision 01 Overview Table 4. Front Panel Display Messages (Cont.) Message Full Name Description PWR FEED Power Feed Off HDSL span power has been turned off by setting the PWFD option to DIS. BAD RT? No response from HRU The HLU does not receive any response from the HRU.
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Page 18: Hlu-431 List 1E Card Connector
The HLU-431 List 1E provides a Network Management Control Bus on pin 46 of the card-edge connector. This allows the various PairGain Management System protocols to manage the HLU through the HMU-319 HiGain Management Unit. Whenever the HLU-431 is under management, the MNGD message displays periodically on the HLU-431 front panel display. -
Page 19: System Alarm Relay Output
150-431-115-01, Revision 01 Installation System Alarm Relay Output The normally open alarm contacts available across pins 20 and 21 (Figure 2 on page 8) comprise the HLU-231 system alarm output. These alarm contacts close for any system alarms condition. This alarm contacts also close if power is lost or removed from the slot, providing fail-safe relay output. -
Page 20: Provisioning The Hlu-431
Provisioning the HLU-431 150-431-115-01, Revision 01 HLU-431 ROVISIONING THE There are two methods for provisioning the HLU-431: • Use the MODE and SEL buttons on the front panel • Access system settings screens through the RS-232 Craft port. No dip switches or jumpers are required to provision the HLU-431 as it contains a non-volatile RAM (NVRAM) which stores the system option settings. -
Page 21: Displaying System Inventory
150-431-115-01, Revision 01 Provisioning the HLU-431 Displaying System Inventory To scroll through an inventory of system parameters, press the MODE button for 3 or more seconds. The following parameters are displayed: • HLU software version number • HLU List number •... -
Page 22: Figure 4. Db-9 Rs-232 I/O Pinouts
Provisioning the HLU-431 150-431-115-01, Revision 01 TERMINAL DB-9 Connector (DTE) HRU-431 DB-9 Connector (DCE) RD (Receive Data) TD (Transmit Data) TERMINAL DB-25 Connector (DTE) Figure 4. DB-9 RS-232 I/O Pinouts September 22, 1998 HLU-431 List 1E... -
Page 23: Maintenance
150-431-115-01, Revision 01 Maintenance AINTENANCE This section explains how to navigate through the Maintenance Terminal screens and describes the Main Menu and its various options. AVIGATING THE AINTENANCE ERMINAL CREENS The following sections describe how the Maintenance Terminal displays an HLU-431 system with and without doublers, how to navigate through the maintenance screens, and how to select options. -
Page 24: Selecting An Option
Maintenance 150-431-115-01, Revision 01 Selecting an Option To select an option within the Maintenance Terminal screens, you can: • Press the key indicated to the left of the selection. • Press the letter in parenthesis of the parameter to be changed. An invalid entry produces the following message and identifies the name of a field where the invalid entry occurred: >... -
Page 25: View Span Status
150-431-115-01, Revision 01 Maintenance Table 6. Maintenance Terminal Screens Screen Function See page: View Span Status Provides access to subscreens that allow you to monitor the HDSL line between the HLU and the HRU. Set Clock Allows you to set both the time and the date parameters at the HLU, and to update the same settings at the HRU. -
Page 26: Figure 7. Span Status Screen (No Doubler)
Maintenance 150-431-115-01, Revision 01 SPAN STATUS TIME: 00:14:11 DATE: 02/02/98 Circuit ID#: ALARMS: NONE LOOPBACK: OFF HDSL-1 HDSL-2 HDSL-1 HDSL-2 cur/min/max cur/min/max cur/min/max cur/min/max MARGIN: 21/17/21 20/17/21 21/18/21 20/18/21 dB PULSE ATTN: INS LOSS: PPM OFFSET: 24 HOUR ES: 00002 00004 00005 00007... -
Page 27: Span Status Fields, Alarms, And Loopbacks
150-431-115-01, Revision 01 Maintenance SPAN 2 STATUS TIME: 12:06:04 Circuit ID#: DATE: 02/02/98 ALARMS: NONE LOOPBACK: OFF HDU1 HDSL-1 HDSL-2 HDSL-1 HDSL-2 cur/min/max cur/min/max cur/min/max cur/min/max MARGIN: 21/21/21 21/21/21 21/21/21 21/21/21 dB PULSE ATTN: INS LOSS: PPM OFFSET: 24 HOUR ES: 00000 00000 00000... -
Page 28: Table 8. Hlu-431 Status Menu Messages: Alarms
Maintenance 150-431-115-01, Revision 01 Table 7. Span Status Fields and Descriptions (Cont.) Field Description 24-Hour ES The number of one second intervals that contained at least one CRC error. This value is a running total of the last 24 Hours. 24-Hour UAS The number of seconds the HDSL loop was out of sync. -
Page 29: Set Clock
150-431-115-01, Revision 01 Maintenance Table 8. HLU-431 Status Menu Messages: Alarms (Cont.) Message Full Name Description HDU1 Network Doubler 1 Loopback Loopback at Doubler #1 towards network initiated by IOR code or HLU-231 front panel MANUAL LOOPBACK push-buttons or maintenance terminal (Figure 15). HDU2 Network Doubler 2 Loopback Loopback at Doubler #2 towards network initiated by IOR code or HLU-231 front... -
Page 30: Set Time
Maintenance 150-431-115-01, Revision 01 All time information is lost when power is removed. The last date, however, is retained in NVRAM and reappears when power is restored. Set Time The cursor defaults to the New Time field. To set the system time, type the hour and minute in the 24-hour format of hh:mm:ss (setting the seconds is optional), then press . -
Page 31: System Settings
150-431-115-01, Revision 01 Maintenance YSTEM ETTINGS The options set from the System Settings screen are the same as the options set through the HLU-431 front panel Mode and SEL buttons (except for Margin Alarm Threshold and DS0 Blocking, which can only be set at this screen). -
Page 32: Ds1 Line Code Option
Maintenance 150-431-115-01, Revision 01 If a customer of a fractional T1 service fills any of the unused DS0 channels with information other than an idle code of all ones, the HiGain system blocks this information from reaching the remote end of the circuit and replaces those DS0 channels with an all ones idle code. -
Page 33: Hais Selections
150-431-115-01, Revision 01 Maintenance HAIS Selections The HAIS option provides two selections for the T1 transmit outputs at both the HLU-431 and HRU for HDSL loss of sync conditions. • 1LP causes the AIS (LOS if ALMP is set to LOS) pattern to be transmitted at both T1 outputs when either of the two HDSL loops experience an out-of-sync (LOSW) condition or when a margin alarm occurs. -
Page 34: System Settings Screen Options
Maintenance 150-431-115-01, Revision 01 System Settings Screen Options Table 9 describes the System Settings screen options and their counterpart codes for the front panel display. Table 9. HLU-431 List 1E System Settings Screen Options Front Panel System Settings Display Selection Description Screen Options Code... - Page 35 150-431-115-01, Revision 01 Maintenance Table 9. HLU-431 List 1E System Settings Screen Options (Cont.) Front Panel System Settings Display Selection Description Screen Options Code Loopback Timeout LBTO NONE Disables automatic time-out cancellation of all loopbacks. Sets automatic cancellation of all loopbacks to 20 minutes after initiation. Sets automatic cancellation of all loopbacks to 60 minutes after initiation.
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Page 36: Loopback Menu
Maintenance 150-431-115-01, Revision 01 Table 9. HLU-431 List 1E System Settings Screen Options (Cont.) Front Panel System Settings Display Selection Description Screen Options Code DSO Blocking The DS0 blocking option can only be set via the RS-232 Craft port with a terminal. -
Page 37: Loopback Menu: Two Doublers
150-431-115-01, Revision 01 Maintenance Loopback Menu: Two Doublers Figure 13 shows the Loopback Menu with two doublers. LOOPBACK MENU TIME: 00:03:33 DATE: 02/02/98 CIRCUIT ID#: A. DISABLE LOOPBACKS B. NETWORK LOOP HLU (NLOC) C. NETWORK LOOP HRU (NREM) D. NETWORK LOOP DOUBLER 1 (NDU1) F. -
Page 38: Disable Loopbacks
Maintenance 150-431-115-01, Revision 01 HI-GAIN HLU-431 MAINTENANCE TERMINAL MAIN MENU (ver V5.1L-5) CIRCUIT ID#: A. VIEW SPAN STATUS B. SET CLOCK C. SYSTEM SETTINGS D. LOOPBACK MODE: NLOC E. VIEW PERFORMANCE DATA F. VIEW PERFORMANCE HISTORY G. VIEW ALARM HISTORY H. -
Page 39: Performance Data Screen: No Doubler
150-431-115-01, Revision 01 Maintenance Errored and Unavailable seconds are defined in Table Table 10. Errored and Unavailable Seconds Definitions ES and UAS Definition HDSL Errored Second A second in which at least one HDSL CRC has occurred. HDSL Unavailable Second A second in which an HDSL loop has sync loss at least once. -
Page 40: Performance Data Screen: With Doubler
Maintenance 150-431-115-01, Revision 01 Performance Data Screen: With Doubler The Performance Data Screen displays information by span. With no doubler, there is only one span (Figure 15). With multiple doublers (up to two), there can be as many as three span screens. Press from the Maintenance Terminal Main Menu to view the Performance Data screen. -
Page 41: The 7 Day History Screen: No Doubler
150-431-115-01, Revision 01 Maintenance The 7 Day History Screen: No Doubler Press (View Performance History) from the Maintenance Terminal Main Menu to open the 7 Day History screen for applications (Figure 17) without a doubler. The 7 Day History Span 1 screen shows the ES and UAS for the HDSL loop between the HLU-431 and the HRU. -
Page 42: View Alarm History
Maintenance 150-431-115-01, Revision 01 Time: 03:09:34 7 DAY HISTORY CIRCUIT ID#: SPAN 5 ERRORED SECONDS/UNAVAILABLE SECONDS HDSL-1 HDSL-2 HDU4 HDU4 04/09 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/10 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/11 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/12 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 00000/00000 04/13... -
Page 43: Alarm History Screen: No Doubler
150-431-115-01, Revision 01 Maintenance Table 11 lists the Alarm History fields and descriptions. These descriptions apply to the Alarm History for doubler applications as well. Table 11. Alarm History Fields and Descriptions Field Description Type Identifies the type of alarm LOS, DS1-HLU First and last instance of LOS at the HLU DSX-1 input;... -
Page 44: Alarm History Screen: With Doubler
Maintenance 150-431-115-01, Revision 01 Alarm History Screen: With Doubler The Alarm History screen displays information by span. With no doubler, there is only one span (Figure 19). With multiple doublers (up to two), there can be as many as three span screens. Press from the Maintenance Terminal Main Menu to view the Alarm History screen. -
Page 45: System Alarms
150-431-115-01, Revision 01 System Alarms YSTEM LARMS Table 12 lists possible HLU-431 alarm states. The accompanying front panel message is listed in the Alarm column. More than one alarm condition can exist at any given time, but only one message can be displayed. For multiple alarms, only the highest priority alarm displays. -
Page 46: Self Test
Loopback Operation 150-431-115-01, Revision 01 The Self Test mode that occurs when both HDSL loops are not in sync has been enhanced to include the input DS1 transceiver chip. The Self Test procedure can cause the AIS pattern that is normally transmitted from the HLU-431 during these out of sync intervals, to exhibit occasional BPVs. -
Page 47: Initiating Manual Loopback Sessions
150-431-115-01, Revision 01 Loopback Operation A2LB through A5LB are four special, addressable, repeater loopback functions which are supported by the HLU-431 List 1E. These loopbacks provide the HiGain system with sophisticated maintenance and trouble shooting tools. A2LB and A5LB are patterned after the Teltrend addressable T1 repeater loopbacks. A3LB and A4LB are patterned after the Wescom addressable T1 repeater loopbacks. -
Page 48: Loopback Test Procedures
Loopback Operation 150-431-115-01, Revision 01 Do one of the following: • To execute an NLOC loopback, press the SEL button. The message changes from NLO? to NLOC. • To execute an NREM loopback: – Press the MODE button. The message changes from NLO? to NRE? –... -
Page 49: Loopback Operation Without Doublers
150-431-115-01, Revision 01 Loopback Operation OOPBACK PERATION WITHOUT OUBLERS The complete family of loopbacks that a HiGain system can execute is shown in Figure 21. The loopbacks can be initiated from the HLU RS-232 Craft port, the HLU front-panel MODE and SEL buttons, or from a family of Special Loopback (SPLP) in-band loopback commands. -
Page 50: Loopback Operation With Doublers
Loopback Operation 150-431-115-01, Revision 01 OOPBACK PERATION WITH OUBLERS The complete family of loopbacks that a HiGain system equipped with the HDU-409 can execute is shown in Figure 22. Four of those loopbacks, NDU1, NDU2; CDU1, CDU2 occur in the doubler. The loopbacks can be initiated from the HLU RS-232 Craft port, the HLU front-panel MODE and SEL buttons, or from a family of Special Loopback (SPLP) in-band loopback commands. -
Page 51: Gnlb Loopback Test Procedures
150-431-115-01, Revision 01 Loopback Operation The more common generic, SPLB in-band loopback commands for doubler loopbacks are listed in Table 13. The commands are very specific combinations of either 6 or 7 bits that continuously repeat. All NXXX loopbacks are towards the network. -
Page 52: A1Lb, A2Lb, And A5Lb Test Procedures
HLU-431 may indicate one more or one less bit error, depending on the test set type and the number of frame bits contained in the block of errored bits. To avoid this uncertainty, PairGain recommends sending the IR commands unframed. - Page 53 150-431-115-01, Revision 01 Loopback Operation The HLU is now in Logic Loopback. The Loopback Time-out option is user settable to: • NONE (0 minutes) • 20 minutes • 60 minutes • 120 minutes These selections determine the duration of this loopback unless it is overridden by the Time-out Override command or a loop-down command is sent.
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Page 54: A3Lb And A4Lb Test Procedures
Loopback Operation 150-431-115-01, Revision 01 Table 14. Addressable 1, 2, 5 (A1LB, A2LB, A5LB) Repeater Loopback Commands Name Description Code ARMING or NI LPBK (in-band) Arming code 11000 11000 … ARMING or NI LPBK (ESF Data Link) Arming code 1111(F) 1111(F)0100(4)1000(8) IR LPDN or DISARM (in-band) Disarming code... -
Page 55: Table 15. Addressable 3 And 4 (A3Lb And A4Lb) Repeater Loopback Commands
150-431-115-01, Revision 01 Loopback Operation Table 15 summarizes the codes required to execute Addressable 3 and 4 (A3LB and A4LB) repeater loopback commands. All code sequences must be present for at least 5 seconds. The abbreviations used in Table 15 are as follows: •... -
Page 56: Appendix A - Technical Specifications
Appendix A - Technical Specifications 150-431-115-01, Revision 01 A - T PPENDIX ECHNICAL PECIFICATIONS HDSL Line Code 784 kbps 2B1Q. HDSL Output +13.5 dBm ±0.5 dB at 135 ohms. HDSL Line Impedance 135 ohms. Maximum Provisioning Loss 35 dB at 196 kHz,135 ohms. Line Clock rate Internal “Stratum 4”... -
Page 57: Appendixb - Abbreviations
150-431-115-01, Revision 01 Appendix B - Abbreviations B - A PPENDIX BBREVIATIONS 2 Binary,1 Quaternary 2B1Q Alarm Indicator Signal Alternate Mark Inversion Bipolar with 8-zero Substitution B8ZS Bipolar Violation Customer Installation Central Office Customer Local Loopback CLOC Customer Premises Equipment Cyclic Redundancy Check Customer Remote Loopback CREM... - Page 58 Appendix B - Abbreviations 150-431-115-01, Revision 01 Loss of Sync Word LOSW Network Equipment Building System NEBS Network Interface Network Interface Device Network Interface Unit Network Local Loopback NLOC Network Management and Administration Network Remote Loopback NREM Plain Old Telephone Service POTS SmartJack AIS SAIS...
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Page 59: Appendix C - Functional Operation
UNCTIONAL PERATION PairGain HDSL technology provides full-duplex services at standard T1 rates over copper wires between an HLU and an HRU, which comprise one HiGain system. HiGain systems use PairGain 2-Binary 1, Quartenary (2B1Q) HDSL transceiver systems to establish two, full-duplex, 784 kbps data channels between the HLU-431 and a remotely located HDU or HRU. -
Page 60: Power Consumption Without Doublers
Appendix C - Functional Operation 150-431-115-01, Revision 01 OWER ONSUMPTION WITHOUT OUBLERS The three most important power parameters of an HLU are its maximum power consumption, its maximum power dissipation, and its maximum current drain. The Maximum Power Consumption is the total power that the HLU-431 consumes or draws from its -48 V shelf power source. -
Page 61: Power Consumption: With Doublers
150-431-115-01, Revision 01 Appendix C - Functional Operation Power Consumption: With Doublers For doubler applications, one or two doublers may be used in the HDSL loops between the HLU-431 List 1E and an HRU. The HLU-431 can line power two doublers and the remote unit (three spans) for circuits up to 2000 ohms of loop resistance. -
Page 62: Appendix D - Compatibility
Appendix D - Compatibility 150-431-115-01, Revision 01 D - C PPENDIX OMPATIBILITY OUNTING The HLU-431 List 1E is compatible any mounting that accepts 400 mechanics including the following PairGain mountings: • HRE-420, Single Slot • HRE-422, Dual Slot • HRE-427, Seven Slot •... -
Page 63: Appendix E - Product Support
UPPORT This section contains product support and warranty information. ECHNICAL UPPORT PairGain Technical Assistance is available 24 hours a day, 7 days a week by contacting PairGain Customer Service Engineering group at: (800) 638-0031 or (714) 832-9922 Telephone: (714) 832-9924... -
Page 64: Warranty
Do not try to 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. -
Page 65: Modifications
The FCC requires the 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 wiring external to the products should follow the provisions of the current edition of the National Electrical Code. -
Page 66: Barcode And Configuration Number Information
SETUP STATUS SPAN DSX-1 SPAN CLEI/ECI Configuration number PairGain Figure 24. Bar Code Label and Configuration Number Table 18. Bar Code Label and Configuration Number Descriptions Number Components CLEI/ECI bar code label Contains the serial number and part number of the unit, as indicated in both bar code and text format. - Page 68 Corporate Office 14402 Franklin Avenue Tustin, CA 92780 Tel: (714) 832-9922 Fax: (714) 832-9924 For Technical Assistance: (800) 638-0031...