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HiGain
HiGain
USER MANUAL
EDU-409
HiGain
DOUBLER
L
EDU-409 List 1 Doubler Unit
Product Catalog: 150-409-115-05
STATUS
ページ2に含まれる内容の要旨
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. Trademark Informat
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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. Cautions indicate the possibi
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Unpack and Inspect Your Shipment 150-409-115-05, Issue 5 iv January 26, 2000 EDU-409 List 1
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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 ........................
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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 ............................................
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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 7.32
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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. The table is applicable to HDSL cable pairs running between the ELU and the ED
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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 (a) Line Powered Remote Local Powered Remote ELU-319 List 5D 1 2 ELU-319 List 6D (b) ELU-319 List 5E 2 3 ELU-319 List 6E (a) Requires ERU-412 List 1D and List 2D. ERU-412 List 1E and 2E do not support local power. (b)
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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. Refer to ADC’s Technical Advisory #TA-015 on HiGain operating ranges and general dep
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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. EDU-409 List 1 January 26, 2000 5
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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. EDU-409 List 1 Front Panel Table 3. Front Panel Components and Labels Name Function Status LED Indicates operational status of doubler. See Table 4 on page 9. Configuration Contains either a five-digit or six-digit warranty configuration nu
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150-409-115-05, Issue 5 Installation INSTALLATION This section describes the compatibility and installation for the EDU-409 List 1. COMPATIBILITY The EDU-409 List 1 is compatible with the following ADC outdoor enclosures: HRE-500, single-slot unit HRE-458, 10-slot unit HRE-819, 12-slot unit INSTALLING THE EDU-409 LIST 1 To install the EDU-409 List 1 in an enclosure, perform the following steps and refer to the enclosure installation manual for information about cabling, proper connecti
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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. When the loops on both sides of the EDU synchronize, the LED constantly glo
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150-409-115-05, 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 Indicates synchronization is being attempted between the per second EDU-409 List 1 and the upstream (network) module. Flashing Green more Indicates synchronization is being attempted between the than once per second EDU-409 List 1 and
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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. Figure 3 is a diagram of a Hi
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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. The doubler unit power supply
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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. The capacities listed in Table 6 (for both indoor and outdoor enc
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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. The adjacency rule only applies to the left- and right-hand s
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Functional Description 150-409-115-05, Issue 5 Table 6. Outdoor Enclosure Capacities with Full Solar Load EDU-409 Recommended Slot 239 T1 List 1 Assignment for Vendor Description Model No. Repeater Doubler Maximum Capacity Capacity Capacity AT&T Outdoor Dual 819 12 25 1, 3, 5, 9, 11, 13, 15, chamber 17, 19, 21, 23, 25 pole/wall (See Figure 5 on mount page 17) AT&T Outdoor 841 27A, B, C or 11 per 25 per 1, 3, 6, 8, 10, 11, 12, cabinet D shelf shelf/44 shelf/100 16, 18, 20, 23, 25 total tota
