PairGain HiGain Line Unit HLU-388 Quick Installation Manual
  1. Manuals
  2. Brands
  3. PairGain Manuals
  4. Touch terminals
  5. HiGain Line Unit HLU-388
  6. Quick installation manual

PairGain HiGain Line Unit HLU-388 Quick Installation Manual

Hide thumbs Also See for HiGain Line Unit HLU-388:
Table of Contents

Advertisement

Quick Links

Download this manual
H
Q
UICK
Model
List Number Part Number
HLU-388
P
E
NGINEERING
G
I
AIN
I
NSTALLATION
2E
G
T
AIR
AIN
ECHNOLOGIES
S
ERVICES
™350-388-125-01x¨
S
350-388-125-01
ECTION
L
U
INE
150-1141-25 T1L2BBYAAA
HLU 388
H G
HD
I AIN
L
2E
M
A
R
G
I
N
(dB)
SETUP
MODE SEL
STATUS
RS
232
T
ECHNICAL
NIT
G
UIDE
CLEI Code
, I
.
NC
P
RACTICE

Advertisement

Table of Contents
loading

Related Manuals for PairGain HiGain Line Unit HLU-388

Summary of Contents for PairGain HiGain Line Unit HLU-388

  • Page 1 UICK NSTALLATION UIDE Model List Number Part Number CLEI Code HLU-388 150-1141-25 T1L2BBYAAA HLU 388 I AIN (dB) SETUP MODE SEL STATUS ECHNOLOGIES NGINEERING ERVICES ECHNICAL RACTICE ™350-388-125-01x¨ 350-388-125-01 ECTION...
  • Page 2 Copyright ©1998 PairGain Technologies, Inc. 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 4 350-388-125-01, Revision 01 BBREVIATIONS Alternate Mark Inversion Bipolar with 8 Zero Substitution B8ZS Central Office Carrier Service Area Errored Seconds Extended Superframe High-bit-rate Digital Subscriber Line HDSL HiGain Doubler Unit HiGain Line Unit HiGain Remote Unit Non-Volatile Random Access Memory NVRAM Super Frame Zero Byte Time Slot Interface...

  • Page 5: Table Of Contents

    350-388-125-01, Revision 01 ABLE OF ONTENTS Product Overview________________________________________ 1 HLU-388 Features ..............1 Compatibility ................2 Front Panel ................3 Front Panel Messages .............. 5 Card-Edge Connector............... 9 Installation ____________________________________________ 10 HDSL Line Voltage _____________________________________ 11 Provisioning ___________________________________________ 12 Using the Front Panel Buttons ..........12 Restoring Default Settings .............
  • Page 6 350-388-125-01, Revision 01 June 30, 1998 HLU-388 List 2E...

  • Page 7: Product Overview

    • Selectable loopback activation codes • RS-232 Craft port for connection to a maintenance terminal • Compatible with PairGain Management System • Ground fault detect circuit • Front panel operator setup • Lightning and power cross protection on HDSL interfaces •...

  • Page 8: Compatibility

    Product Overview 350-388-125-01, Revision 01 • Margin threshold alarm • HDSL Alarm Indicator Signal (AIS) and SmartJack AIS options • Easily restored factory default settings • Circuit ID option OMPATIBILITY The HLU-388 List 2E is compatible with the following T1 repeater shelves and associated equipment: •...

  • Page 9: Front Panel

    HLU-388 List number HiGain HD Front panel display CLEI/ECI bar code label (dB) System option buttons SETUP MODE SEL Status LED STATUS Craft port PAIRGAIN Configuration number Figure 1. The HLU-388 Front Panel HLU-388 List 2E June 30, 1998...
  • Page 10 Product Overview 350-388-125-01, Revision 01 Table 1. 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 (MODE and SEL) without the need of a maintenance terminal.

  • Page 11: Front Panel Messages

    350-388-125-01, Revision 01 Product Overview The HLU-388 front panel tri-color Status LED has the following states: Table 2. Status LED Descriptions LED Status Description Green Normal operation. Flashing green HDSL acquisition. Fuse alarm. Flashing red System alarm. Yellow Self Test is in process or an HLU-388 Customer Remote Loopback (CREM) or a Network Local Loopback (NLOC) is in effect.
  • Page 12 Product Overview 350-388-125-01, Revision 01 Table 3. Front Panel Display Messages Message Full Name Description CREM Customer Remote Loopback Signal from customer is looped back to the customer at HLU-388. NLOC Network Local Loopback DSX-1 signal is looped back to DSX-1 at the HLU.
  • Page 13 350-388-125-01, Revision 01 Product Overview Table 3. Front Panel Display Messages (Cont.) Message Full Name Description Alarm CutOff A system alarm has occurred, and has been retired to an ACO condition, by pressing the SEL button on the HLU front panel. SELF TEST Self Test The HLU is in a self-test mode.
  • Page 14 Product Overview 350-388-125-01, Revision 01 Table 3. Front Panel Display Messages (Cont.) Message Full Name Description LLOS Local Loss of Signal Indicates that no signal is detected at the T1 input to the HLU. Causes a system alarm. RLOS Remote Loss of Signal Indicates that no signal is detected at the T1 input to the HRU.

  • Page 15: Card-Edge Connector

    350-388-125-01, Revision 01 Product Overview ONNECTOR Figure 2 shows the HLU-388 card-edge connector pinouts. FRAME GND -48VDC MJF* RING1 DSX-1 RCV TIP1 RING DSX-1 XMT (FACTORY BURN-IN) RING1 HDSL 2 TIP1 (MNG.BUS) RING HDSL 1 * MJF is normally floating (0 to 80V max.) and at -48V (10mA max.) when activated.

  • Page 16: Installation

    Installation 350-388-125-01, Revision 01 NSTALLATION This product contains static-sensitive components. Be sure to ground yourself properly before touching the HLU-388. Slide the HLU-388 into the shelf card guides for the desired slot, then push the unit in until it is entirely within the card guide. HLU-388 CO shelf Figure 3.

  • Page 17: Hdsl Line Voltage

    350-388-125-01, Revision 01 HDSL Line Voltage HDSL L OLTAGE The HLU-388 sets the HDSL line voltage to either 140 V (for non-doubler applications) or 200 V (for doubler applications) on loop 1. The 140 V output voltage used in non-doubler unit applications is always negative and unipolar. This keeps the HDSL cable pair voltage at or below ground potential, thereby avoiding corrosion problems caused by cable voltages more positive than ground.

  • Page 18: Provisioning

    Provisioning 350-388-125-01, Revision 01 ROVISIONING There are two methods for provisioning the HLU-388: • Use the MODE and SEL buttons on the front panel. • Access system settings menus through the Craft port. No dip switches or jumpers are required to provision the HLU-388. The HLU-388 contains a non-volatile RAM (NVRAM) which stores the system option settings.

  • Page 19: Restoring Default Settings

    350-388-125-01, Revision 01 Provisioning Do one of the following: • 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.) •...

  • Page 20: Using The Maintenance Terminal Menus

    Provisioning 350-388-125-01, Revision 01 SING THE AINTENANCE ERMINAL ENUS The 9-pin, Craft (RS-232) port on the front panel allows you to connect the HLU-388 to a maintenance terminal or PC running a terminal emulation program. Once connected to a maintenance terminal, you can access the maintenance, provisioning, and performance screens.

  • Page 21: Navigating The Maintenance Terminal Menus

    350-388-125-01, Revision 01 Provisioning Navigating the Maintenance Terminal Menus Table 4 lists keys you can use on the maintenance terminal to navigate the Maintenance Terminal menus. Table 4. Navigational Keys on the Maintenance Terminal Function Updates a report. Clears a report. &...

  • Page 22: System Options Settings

    Provisioning 350-388-125-01, Revision 01 System Options Settings Table 5. HLU-388 System Options Mode Selection Description Sets the equalizer to DSX-1 for 0 - 132 feet. Sets the equalizer to DSX-1 for 133 - 265 feet. Sets the equalizer to DSX-1 for 266 - 398 feet. Sets the equalizer to DSX-1 for 399 - 532 feet.
  • Page 23 350-388-125-01, Revision 01 Provisioning Table 5. HLU-388 System Options (Cont.) Mode Selection Description OFF* Notifies the HiGain system that the ESF frame is operating in its normal non-ZBTSI mode. ESAL Flashes the red STATUS LED when 17 Errored Seconds (ES) (17 HDSL CRC errors on either HDSL loop or a total of 17 BPVs) occur within a 24-hour period.
  • Page 24 Provisioning 350-388-125-01, Revision 01 Table 5. HLU-388 System Options (Cont.) Mode Selection Description FRMG AUTO* Configures HiGain to operate in an auto-framing (AUTO) mode in which it continuously searches the input T1 bit stream for a valid SF or ESF frame pattern. This feature is required for fractional T1 applications (DS0 blocking) where it insures proper channel time slot alignment.
  • Page 25 350-388-125-01, Revision 01 Provisioning Table 5. HLU-388 System Options (Cont.) Mode Selection Description The DS0 blocking option can only be set using a terminal connected to the RS-232 Craft port. The 4-character HLU-388 front panel LED readout only displays the status of the blocking option.

  • Page 26: Alarms

    Alarms 350-388-125-01, Revision 01 LARMS Only one alarm can be displayed at a time, therefore, only the highest priority alarm is displayed if more than one alarm exists. The following table lists the alarms in order of priority. Table 6. HDSL System Alarms Front-Panel Alarm Description...
  • Page 27 350-388-125-01, Revision 01 Alarms Table 6. HDSL System Alarms (Cont.) Front-Panel Alarm Description To inhibit: Message ALRM H2ES HDSL Loop HDSL Loop 2 has exceeded Set ESAL system option to 2 Errored the user-selected 24-hour NONE. Seconds Errored Seconds threshold. If both H1ES and H2ES occur simultaneously, only H1ES displays on the front panel.

  • Page 28: Loopbacks

    Loopbacks 350-388-125-01, Revision 01 OOPBACKS The HLU-388 loopback messages are described in Table Table 7. Loopback Messages Message Full Name Description SMJK SmartJack Loopback Loopback at HRU (remote) toward the Network initiated by either the (2 in 5) in-band loopback code or the out-of-band ESF data link code.

  • Page 29: Specifications

    350-388-125-01, Revision 01 Specifications Table 7. Loopback Messages (Cont.) Message Full Name Description CDU2 Customer Doubler 2 The loopback at doubler 2 toward CI Loopback initiated by in-band codes or the maintenance terminal. PECIFICATIONS HDSL Line Code 784 kbps 2B1Q HDSL Output +13.5 dBm ±0.5 dB at 135Ω...
  • Page 30 Specifications 350-388-125-01, Revision 01 Maximum Power 14W (without doubler), 25W (without doubler) Consumption Fusing Internal; connected to “FUSE ALARM” output on pin 10 HDSL Span Voltage 130 to 200VDC (absolute value between loops) Margin Indicator Displays HDSL span SNR margin for both HDSL spans relative to 10 BER operation Electrical Protection...

  • Page 31: Product Support

    ECHNICAL UPPORT PairGain Technical Assistance is available 24 hours per day, 7 days per week by contacting PairGain Customer Service Engineering group at: (800) 638-0031 or (714) 832-9922...

  • Page 32: 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 33: Fcc Compliance

    ODIFICATIONS 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 34: Standards Compliance

    Standards Compliance 350-388-125-01, Revision 01 TANDARDS OMPLIANCE The HLU-388 List 2E has been tested and verified to comply with the applicable sections of the following standards. • GR 63-CORE - Network Equipment-Building System (NEBS) Requirements • GR 1089-CORE - Electromagnetic Compatibility and Electrical Safety 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 HLU-388 DSX-1 output ports to the cross-connect panel must be grounded at both ends.
  • Page 36 Corporate Office 14402 Franklin Avenue Tustin, CA 92780 Tel: (714) 832-9922 Fax: (714) 832-9924 For Technical Assistance: (800) 638-0031...

Table of Contents