HiGain USER MANUAL EDU-409 HiGain DOUBLER L EDU-409 List 1 Doubler Unit Product Catalog: 150-409-115-05 STATUS
150-409-115-05, Issue 5 Revision History of This Manual To order copies of this document, use document catalog number 150-409-115-05. Issue Release Date Revisions Made 01 August 14, 1998 Initial release 02 August 24, 1998 Modify Tables 1 and 2 03 March 26, 1999 Update Technical Specifications 04 January 26, 2000 Change practice title 05 March 1, 2002 ADC rebranding of document; no technical changes Copyright January 26, 2000 © 2000 ADC DSL Systems, Inc. All rights reserved.
150-409-115-05, Issue 5 Using This Manual USING THIS MANUAL The following conventions are used in this manual: • Monospace type indicates screen text. • Keys you press are indicated by small icons such as Y or ENTER . Key combinations to be pressed simultaneously are indicated with a plus sign as follows: CTRL + ESC . • Items you select are in bold. Three types of messages, identified by icons, appear in text. Notes contain information about special circumstances.
Unpack and Inspect Your Shipment iv 150-409-115-05, Issue 5 January 26, 2000 EDU-409 List 1
150-409-115-05, Issue 5 Table of Contents TABLE OF CONTENTS Overview _______________________________________________ 1 Features .................................................................................... 1 Applications ............................................................................. 2 Product Description ______________________________________ 5 Cover........................................................................................ 5 Front Panel .................................
List of Figures 150-409-115-05, Issue 5 LIST OF FIGURES 1. EDU-409 List 1 Front Panel..................................................................6 2. Installing the EDU-409 List 1 in a Remote Enclosure..........................8 3. HiGain Loopbacks...............................................................................10 4. Doubler Block Diagram ......................................................................11 5. AT&T 819 Enclosure ......................................................
150-409-115-05, Issue 5 Overview OVERVIEW The HiGain® EDU-409 List 1 List 1 is a low-power doubler unit that extends the range of a HiGain repeaterless G.703 transmission system. The doubler units are installed between any doubler-compatible HiGain E1 Line Unit (ELU) and HiGain E1 Doubler (EDU) or HiGain E1 Remote Unit (ERU). They allow 2.048 Mbps transmission over twice the normal High Capacity Digital Service (HCDS) range. Adding a doubler can double the HCDS range to approximately 7.
Overview 150-409-115-05, Issue 5 APPLICATIONS HiGain doublers operate with any number of T1, Plain Old Telephone Service (POTS), Digital Data Service (DDS), or other HiGain systems sharing the same cable binder group. The EDU-409 List 1 has a range of up to 35 dB loss at 260 kHz on each of the four HDSL loops. A list of HDSL signal cable losses for various cable gauges at 260 kHz and 135 Ω is provided in Table 1.
150-409-115-05, Issue 5 Overview Table 2 lists the maximum number of EDU-409 List 1 doubler units that can be deployed as a function of the ELU and ERU that are used with it. Table 2. EDU-409 List 1 Circuit Ranges Maximum Number of EDU-409 List 1 Doublers Per Circuit ELU Model Line Powered Remote Local Powered Remote(a) ELU-319 List 5D ELU-319 List 6D 1 2 ELU-319 List 5E ELU-319 List 6E 3(b) 2 (a) Requires ERU-412 List 1D and List 2D. ERU-412 List 1E and 2E do not support local power.
Overview 150-409-115-05, Issue 5 The physical location of the doublers is driven by the following three deployment rules: 1 Place the enclosures at the electrical limits, 35 dB, of each span. This places the first doubler at the 35 dB location, the second at 70 dB, and so on, allowing the maximum circuit range to be realized. Caution must be observed when pushing doubler spans to their 35 dB maximum range.
150-409-115-05, Issue 5 Product Description PRODUCT DESCRIPTION The EDU-409 List 1 List 1 includes: • An open-framed cover • A front panel featuring: – Status display – Configuration number COVER The open-framed cover reduces thermal stress and improves reliability allowing air to freely circulate over all components. The open cover also permits the doubler to be easily distinguished from the 239 T1 repeater.
Product Description 150-409-115-05, Issue 5 FRONT PANEL Figure 1 shows the front panel of the EDU-409 List 1, and Table 3 describes the doubler unit components. EDU-409 HiGain DOUBLER L Status LED STATUS Configuration number label (located on side) Figure 1. Table 3. EDU-409 List 1 Front Panel Front Panel Components and Labels Name Function Status LED Indicates operational status of doubler. See Table 4 on page 9.
150-409-115-05, Issue 5 Installation INSTALLATION This section describes the compatibility and installation for the EDU-409 List 1.
Installation 150-409-115-05, Issue 5 Figure 2. Installing the EDU-409 List 1 in a Remote Enclosure Some enclosures may require you to adjust the retaining bar located on the front of the enclosure to secure the unit. Refer to the appropriate ADC user manual for the enclosure. Once the EDU-409 List 1 is installed in the enclosure, the front panel Status LED flashes green if power is applied from an upstream line unit.
0-409-115-05, Issue 5 Alarms ALARMS The front panel of the EDU-409 List 1 contains a tri-color LED. The LED color and activity provides information on system functionality (see Table 4). Table 4. Front Panel Status Indicator LED Description Flashing Green once per second Indicates synchronization is being attempted between the EDU-409 List 1 and the upstream (network) module.
Loopback Operation 150-409-115-05, Issue 5 LOOPBACK OPERATION When equipped with the EDU-409 List 1, a HiGain system can execute a number of loopback commands. The loopbacks can be initiated from the ELU craft port or from the ELU front-panel buttons. For more information about doubler loopback commands, refer to the appropriate ELU practices (see“Product Support” on page 23). All NDU loopbacks are towards the network. All CDU loopbacks are towards the customer.
150-409-115-05, Issue 5 Functional Description FUNCTIONAL DESCRIPTION HiGain uses the ADC Two-Binary, One-Quaternary (2B1Q) HDSL transceiver system to establish two full-duplex 1040 kbps data channels between the ELU and the ERU units. Each EDU-409 List 1 increases the maximum range by approximately 3.66 km (12,000 feet) of 0.51-mm wire or 2.74 km (9,000 feet) of 0.4-mm wire per doubler. A block diagram of the EDU-409 List 1 with pinouts is shown in Figure 4.
Functional Description 150-409-115-05, Issue 5 DOUBLER ENCLOSURE CAPACITIES WITH FULL SOLAR LOAD The EDU-409 List 1 can be housed in a variety of outdoor enclosures manufactured by ADC and other vendors. The number of doublers used in any of the enclosures depends on the maximum outside ambient temperature. The doubler capacities for several of these standard enclosures is listed in Table 5 on page 13 and Table 6 on page 14.
150-409-115-05, Issue 5 Functional Description The capacities listed for the indoor enclosures in Table 5 assume no solar load. The capacities listed for the outdoor enclosures in Table 6 assume a full solar load as described above. The “Recommended Slot Assignment for Maximum Capacity” column assigns slots according to the following thermal stress reduction rules: 1 Always leave at least one empty slot between adjacent doublers.
Functional Description Table 6. 150-409-115-05, Issue 5 Outdoor Enclosure Capacities with Full Solar Load Vendor Description Model No. EDU-409 List 1 Doubler Capacity AT&T Outdoor Dual chamber pole/wall mount 819 12 25 1, 3, 5, 9, 11, 13, 15, 17, 19, 21, 23, 25 (See Figure 5 on page 17) AT&T Outdoor 841 cabinet 27A, B, C or D shelf 11 per shelf/44 total 25 per shelf/100 total 1, 3, 6, 8, 10, 11, 12, 16, 18, 20, 23, 25 AT&T Outdoor cabinet 809 6 12 All even or all odd-numbered slots.
150-409-115-05, Issue 5 Table 6. Functional Description Outdoor Enclosure Capacities with Full Solar Load (Cont.) Vendor Description Model No. EDU-409 List 1 Doubler Capacity ADC Outdoor dual chamber, pole/wall mount HRE-819 12 239 T1 Repeater Capacity Recommended Slot Assignment for Maximum Capacity 12 All slots Some of the Table 6 capacities are conservative estimates. Ongoing tests at ADC may result in increasing some of these estimates.
Functional Description 150-409-115-05, Issue 5 ALTERNATIVE DOUBLER ENCLOSURE CAPACITIES The number of doublers can be increased by two for applications where the enclosures are underground or not exposed to direct sunlight. However, any increase in capacity is still subject to rule 1 on page 4. The doubler capacity numbers listed for each outdoor enclosure must be reduced by one for every additional +5 °F (+2.8 °C) rise, or any fraction thereof, in outside ambient temperatures above +115 °F (+46.1 °C).
150-409-115-05, Issue 5 Functional Description The AT&T 819 enclosure has two, individual isolated chambers as shown in Figure 5. Slots 1 through 14 are in one chamber. The other chamber contains slots 15 through 25 along with the Pressure (PRES), Filter (FIL), Capacitor (CAP), and COIL slots. . Figure 5. AT&T 819 Enclosure The AT&T 819 can house up to 13 EDU-409 List 1 doublers in the slots designated as D1 through D13 as shown in Figure 5.
Functional Description 150-409-115-05, Issue 5 MICRO DOUBLER CAPACITY DEPLOYMENT RULES The deployment rules for micro doubler capacity are summarized below: 18 1 Use Table 5 on page 13 for indoor enclosures. 2 Use Table 6 on page 14 for outdoor enclosures with Full Solar Load for ambient temperatures up to 46.1 °C maximum. 3 The capacities shown in Table 6 can be increased by two for non-solar load (shaded or manhole applications). 4 Decrease capacities in Table 6 by one for every 2.
150-409-115-05, Issue 5 Ground Faults GROUND FAULTS GROUND FAULT DETECTION The EDU-409 List 1 has ground fault detection (GFD) circuits. When used with HiGain line units, ground faults occurring at any point along any span are immediately detected. Ground fault conditions shut the HiGain circuit down. The line unit periodically tries to apply power to the first span to determine whether the fault condition is still present.
Ground Faults 150-409-115-05, Issue 5 GROUND FAULT ISOLATION Solutions for common problems that may occur with the EDU-409 List 1 are listed in Table 7. Table 7. Fault Isolation Guide Problem Solution LED does not light 1 Verify that the ELU is installed and operational in the Central Office. 2 Verify proper cabling between the doubler enclosure and the Central Office. 3 Measure 100 to 200 Vdc between pins 5 or 6 and 8 or 9.
150-409-115-05, Issue 5 Technical Specifications TECHNICAL SPECIFICATIONS HDSL Line Code 1040 kbps, 2B1Q full duplex Output +13 dBm Line Impedance 135 Ω Input/Output: 25 Ω (maximum) Resistive Signature Line Output DC: 25 Ω (maximum) Start-up Time (per span) 15 seconds (typical), 30 seconds (maximum) Line Clock Rate Internal Stratum 4 clock Power Consumption 3.0 W (nominal), 3.
Technical Specifications 150-409-115-05, Issue 5 Environmental Operating Temperature -40 °C (-40 °F) to +70 °C (+158 °F) Operating Humidity (non-condensing) 5% to 95% Operating Temperature in Outside Enclosures Complies with Section 10.2.1.3 of TA-NWT-001210 Operating Elevation 60.96 m (200 feet) below sea level to 3.96 km (13,000 feet) above sea level Dimensions Height 6.6 cm (2.6 inch) Width 1.9 cm (0.75 inch) Depth 16.5 cm (6.5 inch) Weight 1.76 kg (0.
150-409-115-05, Issue 5 Product Support PRODUCT SUPPORT ADC Customer Service Group provides expert pre-sales and post-sales support and training for all its products. Technical support is available 24 hours a day, 7 days a week by contacting the ADC Technical Assistance Center (TAC). Sales Assistance 800.366.3891 extension 73000 (USA and Canada) 952.917.3000 Fax: 952.917.3237 • Quotation Proposals Systems Integration 800.366.3891, extension 73000 (USA and Canada) 952.917.
Abbreviations 150-409-115-05, Issue 5 ABBREVIATIONS AIS Alarm Indicator Signal CAP Capacitor CDU EDU to Customer loopback CRC Cyclic Redundancy Check DDS Digital Data Service EDU HiGain E1 Doubler Unit ELU HiGain E1 Line Unit ERU HiGain E1 Remote Unit FIL Filter GFD Ground Fault Detection HCDS High Capacity Digital Service HDSL High bit-rate Digital Subscriber Line HRE HiGain Remote Enclosure KBPS Kilo (thousand) Bits Per Second, sometimes written Kb/s MBPS Mega (million) Bits
150-409-115-05, Issue 5 Glossary GLOSSARY American Wire Gauge The standard used to describe wire size. The diameter of the wire increases as the gauge decreases. 26 gauge is 4 mm (0.0157') in diameter, 24 gauge is 51 mm (0.0201'), and so on. 2B1Q Two-Binary, One-Quaternary. Line coding used for HDSL. Cable Binder Group A group of 25 pairs of wires. Bridged Tap A pair of wires connected in parallel across a single line to form a “T” configuration.
Glossary 26 150-409-115-05, Issue 5 January 26, 2000 EDU-409 List 1
150-409-115-05, Issue 5 CISPR-A ComplianceCertification and Warranty CERTIFICATION AND WARRANTY CISPR-A COMPLIANCE This unit complies with the limits for CISPR-A for radiated emissions. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
ADC DSL Systems, Inc. 14402 Franklin Avenue Tustin, CA 92780-7013 Tel: 714.832.9922 Fax: 714.832.9924 Technical Assistance Tel: 800.638.0031 Tel: 952.917.3222 Fax: 714.730.2400 ISO 9001/TL 9000 DOCUMENT: 150-409-115-05, ISSUE 5 ´,4a¶0(¨ DNV Certification, Inc.
