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Model
List Number Part Number
HRU-512
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TELEPHONE CO PROPERTY
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HRU 512
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Table of Contents
Related Manuals for CopperOptics PairGain HiGain HRU-512
Summary of Contents for CopperOptics PairGain HiGain HRU-512
- Page 1 EMOTE Model List Number Part Number CLEI Code HRU-512 150-1253-01 T1LIEPNRAA HRU 512 REM UNIT I AIN 60 mA HDSL TELEPHONE CO PROPERTY ECHNOLOGIES NGINEERING ERVICES ECHNICAL RACTICE ™150-512-100-03d¨ 150-512-100-03 ECTION...
- Page 2 150-512-100-03, Revision 03 Revision History of This Practice Revision Release Date Revisions Made August 16, 1994 Initial Release September 5, 1995 Modified and updated September 25, 1998 Modified and updated SING RACTICE Two types of messages, identified by icons, appear in the text. Notes contain information about special circumstances.
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Page 3: Table Of Contents
150-512-100-03, Revision 03 ABLE OF ONTENTS Overview _______________________________________________ 1 Applications ____________________________________________ 2 Functional Description____________________________________ 3 Operational Capabilities............3 Front Panel ................5 Rear Panel Features..............8 Local and Line Power ............10 Installation ____________________________________________ 11 Unpack and Inspect the Shipment.......... 11 Install the HRU-512 List 1............. - Page 4 150-512-100-03, Revision 03 IST OF IGURES Figure 1. HRU-512 List 1 Block Diagram ..........5 Figure 2. HRU-512 List 1 Front Panel ...........6 Figure 3. HRU-512 List 1 Rear Panel.............9 Figure 4. HRU-512 List 1 Edge Connector Pinouts ......14 Figure 5. DB-9 Connector Pinouts ............16 Figure 6.
- Page 5 150-512-100-03, Revision 03 IST OF ABLES Table 1. HRU-512 List 1 Front Panel Components ......7 Table 2. Rear Panel Components ............10 Table 3. HRU-512 List 1 Alarm History Screen Definitions ....24 HRU-512 List 1 September 25, 1998...
- Page 6 150-512-100-03, Revision 03 September 25, 1998 HRU-512 List 1...
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Page 7: Overview
150-512-100-03, Revision 03 Overview VERVIEW ® ® The PairGain HiGain Remote Unit Model HRU-512 List 1 is the remote end of a single pair repeaterless fractional T1 (FT1) transmission system. or in equivalent enclosure manufactured by PairGain Technologies. When used in conjunction with the HiGain Line Unit (HLU) the system provides 784 kbps transmission on one unconditioned copper pair over the full Carrier Service Area (CSA) range. -
Page 8: Applications
Applications 150-512-100-03, Revision 03 • 784 kbps Full-Duplex 2B1Q HDSL Transmission on 1 Pair • Payload Bandwidth Selectable from 128 kbps (2 channels) to 768 kbps (12 channels) in increments of 128k • Provisional Robbed Bit (RBS) or Clear (CLR) Signaling for Each DS0 Channel. -
Page 9: Functional Description
150-512-100-03, Revision 03 Functional Description UNCTIONAL ESCRIPTION This section describes the functions of the HRU-512 List 1. PERATIONAL APABILITIES HiGain utilizes PairGain’s 2B1Q HDSL transceiver system to establish a full-duplex 784 kbps data channels between the HLU and a remotely mounted HRU-512 List 1. -
Page 10: Figure 1. Hru-512 List 1 Block Diagram
Functional Description 150-512-100-03, Revision 03 Figure 1 shows a block diagram of the HRU-512 List 1. LINE RLBO HDSL 1 HDSL 330K FRAMER XCVR ( + ) DS1/RCV LOGIC LOOPBACK CLOC METALLIC POWER SUPPLY I-CPE LOOPBACK NREM 60 mA MON DEMUX -48VDC DS1/TX... -
Page 11: Front Panel
150-512-100-03, Revision 03 Functional Description RONT ANEL Figure 2 shows the front view of the HRU-512 List 1. Table 1 describes the HRU-512 List 1 front panel components. HRU 512 HiGain FT1 REMOTE Test points 60mA Alarm (ALM) LEDs Loopback (LB) LEDs Loopback (LB) button Receive (RCV) and Transmit (XMT) - Page 12 Functional Description 150-512-100-03, Revision 03 Table 1. HRU-512 List 1 Front Panel Components Name Function Test points Allow the 60 mA I-CPE current option to be measured. The current flowing is related to the voltage measured across the + and - test points by the following relationship: CPE CURRENT = 1 mA/1 mV.
- Page 13 150-512-100-03, Revision 03 Functional Description Table 1. HRU-512 List 1 Front Panel Components (Cont.) Name Function OK LED lights green to indicate that the HDSL loop is synchronizing with the HLU. A solid green state indicates that the loop is properly synchronized with the HLU.
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Page 14: Rear Panel Features
Functional Description 150-512-100-03, Revision 03 ANEL EATURES The HRU-512 List 1 has two user switch options and a jumper located at the rear of the unit as shown in Figure 3. Each switch has two settings as described in Table I-CPE Manual Switches TLOS-LB... - Page 15 150-512-100-03, Revision 03 Functional Description Table 2. Rear Panel Components Switch Setting Function I-CPE Sets the CPE current to 0 mA. Sets the CPE current to 60 mA to power an external NID. TLOS-LB Does not allow the HRU-512 List 1 to enter its logic loopback state when a loss of the T1 XMT signal from the CPE causes the HLU to transmit the AIS signal toward the DSX-1.
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Page 16: Local And Line Power
Functional Description 150-512-100-03, Revision 03 OCAL AND OWER The HRU-512 List 1 can be powered from either the line (over the HDSL cable pair) or from a local -48 Vdc power supply. It always chooses the local -48 Vdc power supply if present. It defaults to line power in the absence of local power. -
Page 17: Installation
150-512-100-03, Revision 03 Installation NSTALLATION This section describes how to install the HRU-512 List 1. NPACK AND NSPECT THE HIPMENT Upon receipt of the equipment: Unpack the container and visually inspect the product for signs of damage. If the equipment has been in transit, immediately report the extent of damage to the transportation company and to PairGain. - Page 18 Installation 150-512-100-03, Revision 03 To install the HRU-512 List 1: Ensure that the shelf is correctly mounted and wired (refer to the shelf’s technical practice for additional information). Slide the HRU-512 List 1 into the card guides for the desired slot, then push the unit back until it touches the backplane cared-edge connectors.
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Page 19: Figure 4. Hru-512 List 1 Edge Connector Pinouts
150-512-100-03, Revision 03 Installation The HRUs edge connector pinouts are shown in Figure 4. The active pins are shown in black. 55 --- DS1 TIP 49 --- DS1 RING 41 --- HDSL2 TIP 1 RS-232 DATA IN RS-232 DATA OUT 48 VOLT LOCAL POWER FOR FACTORY... -
Page 20: Installation Test
Installation 150-512-100-03, Revision 03 NSTALLATION Perform the following procedure to test the HRU-512 List 1. Press the loopback button (see Figure 2 for the location of this button for at least five seconds. Verify that the LB NET LED lights green, indicating that the HRU-512 List 1 is in a digital (NREM) loopback state. -
Page 21: Provisioning
150-512-100-03, Revision 03 Installation ROVISIONING The following sections describe how to perform configuration, provisioning and performance monitoring functions using the HRU-512 List 1 menus and screens. ONNECT A AINTENANCE ERMINAL To connect a maintenance terminal: Connect a standard 9-pin serial terminal cable to the Craft port, a DB-9 female connector to the HRU-512 List 1. - Page 22 Installation 150-512-100-03, Revision 03 Connect the other end of the terminal cable to the console port on the maintenance terminal. Configure the maintenance terminal to the following communication settings: • 1200 to 9600 baud • no parity • 8 data bits •...
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Page 23: Log On And Use The Menus
150-512-100-03, Revision 03 Installation N AND SE THE ENUS This section shows you how to log on and access the menus and screens using the maintenance terminal. Press the 63$&(%$5 several times to activate the autobaud feature and to display the logon screen. When using doublers, the remote logon screen displays when the HRU-512 List 1 and the HLU synchronize. -
Page 24: Figure 7. Main Menu Local Log On
Installation 150-512-100-03, Revision 03 Hi-GAIN FT1 LU REMOTE TERMINAL MAIN MENU (ver V1.3L-0001) CIRCUIT ID#: PairGain Technologies A. VIEW SPAN STATUS C. SYSTEM SETTINGS D. VIEW PERFORMANCE DATA F. VIEW 7 DAY HISTORY G. VIEW ALARM HISTORY H. REMOTE LOGOFF Figure 7. -
Page 25: Figure 8. Span Status Display
150-512-100-03, Revision 03 Installation View Span Status From the Main Menu, type . The Span Status screen displays. When no doublers are in use, the following Span Status screen displays: SPAN STATUS (HLU/ver 1.3-0001: HRU/ver 1.3-0001) TIME: 11:06:15 DATE: 07/06/95 CIRCUIT ID#: PairGain Technologies ALARMS: NONE... -
Page 26: Figure 9. System Settings Menu
Installation 150-512-100-03, Revision 03 System Settings From the Main Menu, type & to display the System Settings menu. SYSTEM SETTINGS TIME: 11:07:38 DATE: 07/06/95 CIRCUIT ID#:PairGain Technologies IDLE CODE: NETWORK LOOPBACK: DISABLE POWER: ENABLE ES ALARM THRES: NONE LOOPBACK TIMEOUT: HRU DS1 CODE: DSO CHAN SLOTS: CONT... -
Page 27: Figure 10. Performance Data
150-512-100-03, Revision 03 Installation View Performance Data From the Main Menu, type to display the Performance Data screen. Date: 07/06/95 PERFORMANCE DATA CIRCUIT ID#: PairGain Technologies ERRORED SECONDS/UNAVAILABLE SECONDS HDSL-1 07:15 ---/000 000/000 000/000 000/000 07:30 ---/000 000/000 000/000 000/000 07:45 ---/000 000/000... -
Page 28: Figure 11. 7 Day History
Installation 150-512-100-03, Revision 03 View 7 Day History From the Main Menu, type to display the 7 Day History screen. Time: 11:12:19 7 DAY HISTORY CIRCUIT ID#: PairGain Technologies ERRORED SECONDS/UNAVAILABLE SECONDS HDSL 06/29 -----/00000 00000/00000 00000/00000 00000/00000 06/30 -----/00000 00000/00000 00000/00000 00000/00000 07/01 -----/00000 00000/00000 00000/00000 00000/00000 07/02... -
Page 29: Figure 12. Alarm History Screen
150-512-100-03, Revision 03 Installation View Alarm History From the Main Menu type to display the Alarm History screen. ALARM HISTORY TIME: 11:13:39 DATE: 07/06/95 CIRCUIT ID#:PairGain Technologies Type First Last Current Count LOS, DS1-HRU LOSW, HDSL HDSL MARGIN LP PWR-OPEN PWR-SHRT LAST CLEARED: 06/30/95-00:01... - Page 30 Installation 150-512-100-03, Revision 03 Table 3. HRU-512 List 1 Alarm History Screen Definitions Message Full Name Description NONE No Alarms There are currently no alarms in effect. RLOS Remote Loss of Signal No signal at the remote HRU-512 List 1 DS1 input port.
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Page 31: Loopbacks
150-512-100-03, Revision 03 Installation OOPBACKS The HRU-512 List 1 supports 4 types of loopbacks (see Figure 6). • NREM (network remote loopback) • NLOC (network local loopback • CLOC (customer local loopback) • CREM (customer remote loopback Figure 13 on page 27 shows the two remote unit loopbacks NREM and CLOC. - Page 32 Installation 150-512-100-03, Revision 03 NAIS-DIS When the HRU is in the NAIS-ENA (enabled) loopback state, the HRUs DS1 input LOS, Code, and Frame monitoring circuits are connected to the signal being received from the CPE. Thus the HRUs front panel CODE and FRM LEDs indicate the status of the customer’s DS1 input signal.
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Page 33: Figure 13. Higain-Ft1 Loopback Configurations
150-512-100-03, Revision 03 Installation NREM (NAIS-DIS) HDSL SPAN METALLIC NREM (NAIS-ENA) Loopbacks toward HDSL SPAN channel NREM bank NLOC Logic HDSL SPAN LOGIC AIS* 6 in 7 HDSL SPAN Loopbacks toward CLOC customer LOGIC HDSL SPAN 5 in 7 ASC* * AIS is only transmitted on the DS0 time slot bandwidth as provisioned by the user Figure 13. - Page 34 Installation 150-512-100-03, Revision 03 When T1 loopback tests are made on the system with external metallic loopback connections across the HRU-512 List DS1 XMT and RCV ports, the DS1 code that exists at these ports may be different from the one being sent at the distant end when the DS1 code option is set to AUTO.
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Page 35: Specifications
150-512-100-03, Revision 03 Specifications PECIFICATIONS 784 kbps 2B1Q full duplex HDSL Line Code +13 dBm ± 0.5 dB at 135 Ω HDSL Output 135 Ω HDSL Line Impedance 180 k Ω across Tip and Ring HDSL Line DC resistive signature 35 dB at 196 kHz, 135 Ω... -
Page 36: Abbreviations
Abbreviations 150-512-100-03, Revision 03 BBREVIATIONS Alternate Mark Inversion Bit Error Rate Bipolar Violations Binary Eight Zero Substitution B8ZS Central Office Cyclic Redundancy Check Carrier Service Area Errored Seconds Extended Superframe High-bit-rate Digital Subscriber Line HDSL HiGain Line Unit HiGain Remote Unit Super Frame Signal-to-Noise Ratio Special Loopback... -
Page 37: Product Support
150-512-100-03, Revision 03 Product Support RODUCT 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 Fax:... -
Page 38: Warranty
Product Support 150-512-100-03, Revision 03 ARRANTY 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 regular maintenance. PairGain will repair or replace any unit without cost during this period if the unit is found to be defective for any reason other than abuse or incorrect use or installation. - Page 40 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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