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PairGain HIGAIN-2 HLU-619 Manual

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PAIRGAIN TECHNOLOGIES
Technical Practice
Engineering - PLANT Series
P
G
AIR
L
#
IST
1
CONTENTS
1. DESCRIPTION AND FEATURES.......................2
2. APPLICATIONS.................................................3
3. SPECIFICATIONS .............................................3
4. ABOUT THE HLU-619 .......................................4
4.1 DSX-1 INTERFACE DRIVER ........................4
4.2 POWER CONSIDERATIONS........................5
5. USING ALARMS................................................6
6. INSTALLATION .................................................8
7. TESTING............................................................8
8. SETTING THE SYSTEM OPTIONS .................10
8.1 USING THE FRONT PANEL ......................10
8.2 USING AN RS-232 TERMINAL...................11
9. LOOPBACK OPERATION ...............................12
16. CERTIFICATION............................................28
17. WARRANTY...................................................28
18. FINDING TECHNICAL HELP .........................28
19. GLOSSARY ...................................................29
20. USING THE SOFTWARE...............................30
Revision History of this practice.
Revision 01 - August 5, 1996
a) Initial release.
2008.DOC
T
AIN
ECHNOLOGIES
MODEL HLU-619
P
N
ART
UMBER
#150-1276-01
PAGE
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I
AIN
CLEI C
T1L2AAAAAA
CAUTION
T
HIS PRODUCT INCORPORATES STATIC SENSITIVE
. P
COMPONENTS
ROPER ELECTROSTATIC DISCHARGE
PROCEDURES MUST BE FOLLOWED
Figure 1.
HLU-619 Front Panel. The PairGain
HLU-619 is the Central Office side of a single
pair repeaterless T1 transmission system.
SECTION 150-619-100
Revision 01
August 5, 1996
U
INE
NIT
ODE
.
Page 1

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Summary of Contents for PairGain HIGAIN-2 HLU-619

  • Page 1: Table Of Contents

    20. USING THE SOFTWARE.......30 Revision History of this practice. Revision 01 — August 5, 1996 Figure 1. HLU-619 Front Panel. The PairGain a) Initial release. HLU-619 is the Central Office side of a single pair repeaterless T1 transmission system. Page 1...

  • Page 2: Description And Features

    3408 Fault Locate unit, they must be rewired to accept the HLU-619. 1.01 PairGain’s HiGain-2 Line Unit Model HLU-619, List 1 (see Figure 1) is the Central Office (CO) side 1.04 HLU-619, List 1 includes: of a single pair repeaterless T1 transmission •...

  • Page 3: Applications

    Section 150-619-100 Revision 01 DSX-1 Pulse Output Pre-equalized for 0 to 2. APPLICATIONS 655 feet of ABAM 2.01 Cost-Effective. HiGain-2 provides easy-to- DSX-1 Input Level +1.5 to -7.5 dB DSX deploy method for delivering T1 High Capacity Digital Service (HCDS) over one metallic pair. The 1.544 Mbps ±...

  • Page 4: About The Hlu-619

    4.02 A block diagram of the HLU-619 is shown in Word (FSW) of the VHDSL channel, the Figure 2. The HiGain-2 HLU-619 receives a 1.544 demultiplexer can reconstruct the original 1.544 Mbps DS1 data stream from the DSX-1 digital cross Mbps DS1 stream from the VHDSL channel.

  • Page 5: Power Considerations

    R C V RING 1 Figure 2. HLU-619 Block Diagram. PairGain’s VHDSL technology provides full duplex services at standard T-1 rates over copper wires between an HLU and an HRU, which comprise one HiGain-2 system. 4.22 Power Demands. The three most important 4.2 POWER CONSIDERATIONS...

  • Page 6: Using The Rs-232 Connection

    Section 150-619-100 Revision 01 4.23 The Maximum Power Dissipation measures parity. You can connect an ASCII terminal or a Personal Computer loaded with or using the power that is converted into heat buildup within the unit. It contributes to the total heat generated in communication software.
  • Page 7 Section 150-619-100 Revision 01 5.04 The HLU-619 Pin 10, Fuse Alarm is driven to 5.02 Pin H, MNRALM, remains at +5V for the -48 V whenever its on-board fuse opens. It duration of the alarm condition. If the Wescom 1184 emulates the function of the Fuse Alarm output from Alarm Card is installed in the shelf, its LOS LED Pin 10 of normal HD repeaters.

  • Page 8: Installation

    (C)lear option from the HLU- extent of damage to the transportation company and 619 Status Screen shown in Figure 7. to PairGain. Note that since the HLU-619 is considered the 6.02 The HLU-619 mounts in the group of both...
  • Page 9 Section 150-619-100 Revision 01 HLU-619 Loopback Configurations. The most important of the HiGain-2 family of loopback Figure 5. options is the Smart-Jack loopback, which emulates the functions of a standard NID. Page 9...

  • Page 10: Setting The System Options

    Section 150-619-100 Revision 01 1. To set the default values, press the SEL button 8. SETTING THE SYSTEM OPTIONS while the “DFLT NO” message is displayed. “DFLT YES” appears, indicating the factory 8.01 The HLU-619 contains a non-volatile RAM, default values are now in effect. which stores the System Options Settings.

  • Page 11: Using An Rs-232 Terminal

    Section 150-619-100 Revision 01 parameter to be changed. Each entry of this letter 8.2 USING AN RS-232 TERMINAL scrolls the parameter to its next value. Hit the Enter 8.21 The following three user options must be set key after making each selection. After all selections with an RS-232 terminal: have been made, press E to “Exit”...

  • Page 12: Loopback Operation

    Smart-Jack loopback (1 in 6) command. HRU/NREM (3 in 7) toward the network. In addition, Refer to the PairGain HiGain-2 Intelligent Repeater it allows in-band codes to loop up the HLU/CREM (6 Application Note #910 Part #325-910-100 for more in 7) or the HRU/CLOC (5 in 7) toward the customer.
  • Page 13 Section 150-619-100 Revision 01 HiGain-2 loopbacks to be executed. The next 9.08 HiGain-2 may take longer than normal to loopback option can be presented by pressing the respond to in-band loopback commands when its Mode push button, however, the previously framing mode is set to UNFR, and the in-band executed loopback will remain active until the SEL commands are sent in either an SF or ESF mode.
  • Page 14 Section 150-619-100 Revision 01 TABLE 2. HLU-619 SYSTEM OPTIONS ELECTION ESCRIPTION Sets the equalizer to DSX-1 for 0 to 132 feet. Sets the equalizer to DSX-1 for 133 to 265 feet. Sets the equalizer to DSX-1 for 266 to 398 feet. Sets the equalizer to DSX-1 for 399 to 532 feet.
  • Page 15 Section 150-619-100 Revision 01 TABLE 2. HLU-619 SYSTEM OPTIONS (CONTINUED) ELECTION ESCRIPTION AUTO The HLU-619 and HRU-612 independently monitor their incoming T1 bit streams for the Binary Eight Zero Substitution (B8ZS) pattern. If either unit detects this pattern, it enters its B8ZS mode. It reverts back to its Alternate Mark Inversion (AMI) mode if no B8ZS patterns are received for five seconds.
  • Page 16 Section 150-619-100 Revision 01 TABLE 3. HLU-619 FOUR-CHARACTER FRONT PANEL MESSAGES ESSAGE ESCRIPTION CREM Customer Remote Signal from customer is looped back to customer at HLU-619. Loopback NLOC Network Local DSX-1 signal is looped back to DSX-1 at HLU. Loopback CLOC Customer Local Signal from customer is looped back to customer at HRU-612.
  • Page 17 Section 150-619-100 Revision 01 TABLE 3. HLU-619 FOUR-CHARACTER FRONT PANEL MESSAGES (CONTINUED) ESSAGE ESCRIPTION PWR FEED SHRT Power Feed Short Indicates a short between the VHDSL conductors. This same message can occur with an HRU, which is drawing the correct amount of power over good cable pairs, but cannot communicate with the HLU.
  • Page 18 Section 150-619-100 Revision 01 TABLE 4. HLU-619 STATUS MENU MESSAGES ESSAGE ESCRIPTION ALARMS: LLOS Local Loss of Signal No signal from HLU-619 local DSX-1 interface. RLOS Remote Loss of Signal No signal from HRU-612 remote DS1 interface. LOSW Loss of Sync Word VHDSL loop has lost sync.
  • Page 19 Section 150-619-100 Revision 01 TABLE 4. HLU-619 STATUS MENU MESSAGES (CONTINUED) ESSAGE ESCRIPTION CLOC Customer Local Loopback The loopback at HRU-612 (local) toward CI (see Figure 5) initiated from CPE (customer) by either the ILR number 2 code, the HLU-619 front panel Manual Loopback push buttons, or the maintenance terminal.

  • Page 20: Hlu-619 Gnlb Test Procedure

    Section 150-619-100 Revision 01 Also verify, if possible, that the Loopback LED of TESTING PROCEDURES the HRU-612 is flashing indicating that the HRU- 612 is armed, or, that the Loopback LED lights 10. HLU-619 GNLB TEST PROCEDURE steadily indicating that the HRU-612 is both armed and in loopback.
  • Page 21 Section 150-619-100 Revision 01 the HLU-619. The unit remains armed, however, 5. Using the following codes, a network tester can as indicated by the “Arm” message on the HLU- activate loopbacks NLOC or NREM or SMJK (if 619 and the flashing of the HRU-612 Loopback ENAbled) (see Figure 5).

  • Page 22: Hlu-619 A2Lb Test Procedure

    Section 150-619-100 Revision 01 Note: This error pattern repeats every 20 12. HLU-619 A2LB TEST PROCEDURE seconds, as long as the IOR loopback pattern is being sent. This same 20-second 1. Send the in-band Arming and NI LPBK code repeat scenario also applies to the Time-out 11000 into the HLU-619 for at least five seconds Override and Query commands.
  • Page 23 Section 150-619-100 Revision 01 ADDRESSABLE 2 (A2LB) REPEATER LOOPBACK COMMANDS OMMAND ESCRIPTION ARMING or NI LPBK (in-band) Arming code 11000 11000 ... ARMING or NI LPBK (ESF data link) Arming code 1111 1111 0100 1000 (FF48) IR LPDN or DISARM (in-band) Disarming code 11100 11100 ...

  • Page 24: Hlu-619 A3Lb Test Procedures

    Section 150-619-100 Revision 01 time-out override state exists, the only way to 13. HLU-619 A3LB TEST PROCEDURES loop the HLU-619 down is to issue one of the three loop-down commands listed in Step 2. The 1. The HiGain-2 Line Unit can be looped back automatic time-out mode is restored during (NLOC in Figure 5) by sending the Addressable subsequent loopback sessions.

  • Page 25: Hlu-619 A4Lb Test Procedures

    Section 150-619-100 Revision 01 command before the timer expires. When this 14. HLU-619 A4LB TEST PROCEDURES time-out override state exists, the only way to loop the HLU-619 down is to issue one of the 1. The HiGain-2 Line Unit can be looped back three loop-down commands listed in Step 2.

  • Page 26: Hlu-619 A5Lb Test Procedures

    Section 150-619-100 Revision 01 ♦ Normal looped data. 15. HLU-619 A5LB TEST PROCEDURES Note This error pattern repeats every 20 seconds, 1. Send the in-band Arming and NI (Network as long as the IOR loopback pattern is being Interface) LPBK code 11000 into the HLU-619, sent.
  • Page 27 Section 150-619-100 Revision 01 ADDRESSABLE 5 (A5LB) REPEATER LOOPBACKS Command Description Code ARMING or NI LPBK (in-band) Arming code 11000 11000 ... ARMING or NI LPBK (ESF data Arming code 1111 1111 0100 1000 (FF48) link) IR LPDN or DISARM (in-band) Disarming code 11100 11100 ...

  • Page 28: Certification

    PairGain for repair. Any modifications of the unit by anyone other than an authorized PairGain representative voids the warranty. 17.03 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: PairGain Technologies, Inc.

  • Page 29: Glossary

    Section 150-619-100 Revision 01 19. GLOSSARY MARGINS Indicates the excess signal to noise ratio, at either the HRU-612 or HLU HDSL ports, relative to a 10 Bit Error Rate. 1st value is current margin, 2nd value is minimum margin since the clear option was last chosen, 3rd value is maximum value since cleared.

  • Page 30: Using The Software

    Section 150-619-100 Revision 01 4. Press <M> on the keyboard to return to the 20. USING THE SOFTWARE Main menu. 20.01 Once you have installed the HLU-619, you 20.04 System Settings Screen.Viewing system can monitor perfomance using the software and a settings allows you to specify any special settings video terminal.
  • Page 31 Section 150-619-100 Revision 01 specific information about a time slice, but rather To use the Alarm History Screen you see information about the entire 24 hour period 1. Go to the Main menu, as described in section in one figure. 20.02.
  • Page 32 Section 150-619-100 Revision 01 Figure 6. HLU-619 Main Menu. Figure 7. HLU-619 Status Display. Page 32...
  • Page 33 Section 150-619-100 Revision 01 HLU-619 Set Clock Menu. Figure 8. Figure 9. HLU-619 System Settings Menu. Page 33...
  • Page 34 Section 150-619-100 Revision 01 HLU-619 Performance Data Screen. Figure 10. Figure 11. HLU-619 7-Day Performance History Screen. Page 34...
  • Page 35 Section 150-619-100 Revision 01 HLU-619 Alarm History Screen. Figure 12. Copyright © 1996, PairGain Technologies, Inc. PairGain is a registered trademark, CopperOptics and HiGain-2 are trademarks of PairGain Technologies, Inc. Page 35...

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