ADC EFM-832 Bedienungsanleitung
WorldDSL-ETSI Fuse Alarm Panel (EFM-832)
Quick Installation Guide
Page 1 of 4
OVERVIEW
The ADC®WorldDSL-ETSI Model EFM-832 Fuse Alarm Module protects shelf-mounted line
units from over current conditions at the exchange office power supply. The EFM-832 mounts
externally on the EMS-832 Exchange Office Management Shelf.
The exchange office power supply is connected to -48 Vdc inputs on the EFM-832 Fuse
Alarm Module. The fuse-protected outputs of the EFM-832 are connected to the -48 Vdc
inputs on the shelf.
An overcurrent condition at the exchange office power supply opens a protection fuse on the
EFM-832. An open protection fuse routes exchange office power to local alarms, signaling
the overcurrent condition.
PRODUCT DESCRIPTION
The EFM-832 Fuse Alarm Module is shown in Figure 1. Major components of the EFM-832
include:
• A fuse module cover with circuit-board mounted fuse holder, terminal strip, and
shelf-power wire leads.
• Two GMT type 10-ampere fuses.
Figure 1. EFM-832 Fuse Alarm Module
SPECIFICATIONS
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Compatibility Works with EMS-832 (16-slot, front connector access).
Power Input
Input Voltage Range -36 Vdc to -72 Vdc
Fuses
Fuse Type Buss GMT
Rating (Fuses A and B) 10 A
Page 2 of 4
INSTALLATION
The EFM-832 Fuse Alarm Module installs on the exterior surface of an EMS-832 WorldDSL-
ETSI shelf. The EFM-832 is secured in place using a single screw already present on the
shelf.
To install the EFM-832:
CAUTION
Use of this product in a manner other than defined in this installation
guide may cause damage to equipment or injury to personnel.
Step Action
1On the right side of the EMS shelf, remove the shelf screw as shown in Figure 2.
Figure 2. Installing the EFM-832 Fuse Alarm Module
2Align the hole on the right side of the EFM-832 with the hole from which the screw
was removed in Step 1.
3Secure the EFM-832 to the shelf with the screw removed in Step 1.
4Loosen the five screws on the shelf power terminal strip and the four screws on
the EFM-832 terminal strip (Figure 2).
5Strip approximately 0.375 inch (9.5 mm) of insulation from the two red wire leads
on the EFM-832.
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6Insert the red wire lead on the EFM labeled “A” into the shelf terminal strip
connector labeled “-48V A” (Figure 3).
Figure 3. EFM-832 Wiring Diagram
7Insert the red wire lead on the EFM labeled “B” into the shelf terminal strip
connector labeled “-48V B” (Figure 3).
8Connect the -48 volt and return leads of your primary and secondary power
supplies to the shelf and EFM-832 terminal strips as shown in Figure 3.
9Connect your power supply alarms to FUSE ALM terminals A and B on the
EFM-832 terminal strip and to the return (RTN) terminals of your primary and
secondary power supplies (Figure 3).
10 Tighten the nine terminal strip screws loosened in Step 4.
Step Action
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Page 4 of 4
HOW TO OBTAIN ADC DOCUMENTATION
Copies of this publication or any other document can be downloaded from the ADC website
at www.adc.com. To order a hard copy, please contact your sales representative.
FCC CLASS A COMPLIANCE
This equipment has been tested and found to comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instruction manual, may cause
harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
LIMITED WARRANTY
Product warranty is determined by your service agreement. Refer to the ADC Warranty/
Software Handbook for additional information, or contact your sales representative or
Customer Service for details.
MODIFICATIONS
Any changes or modifications made to this device that are not expressly approved by ADC
Telecommunications, Inc. voids the user's warranty. All wiring external to the products should
follow the provisions of the current edition of the National Electrical Code.
STANDARDS COMPLIANCE
This equipment has been tested and verified to comply with the applicable sections of the
following safety standards:
• GR 63-CORE – Network Equipment-Building System (NEBS) Requirements
• GR 1089-CORE – Electromagnetic Compatibility and Electrical Safety
• Binational standard, UL-60950/CSA C22.2 No. 60950-00: Safety of Information
Technology Equipment.
WORLD HEADQUARTERS
To contact ADC by mail:
ADC Telecommunications, Inc.
PO Box 1101
Minneapolis, MN 55440-1101
TECHNICAL SUPPORT
Technical assistance is available 24 hours a day, 7 days a week by contacting the ADC
Technical Assistance Center (TAC) at:
Telephone: 800.366.3891 (toll-free in the U.S. and Canada)
E-mail: [email protected]
Knowledge Base: www.adc.com/us/en/support/knowledgebase/
Web: www.adc.com
!
IMPORTANT
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 line unit DSX-1 output
ports to the cross-connect panel must be grounded at both ends.
WORLDDSL-ETSI FUSE ALARM PANEL (EFM-832)
Quick Installation Guide
Product Catalog: EFM-832
Document: LTPE-QI-3084-01
Issued August 14, 2009
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1667494
REVISION HISTORY
Copyright © 2009 ADC Telecommunications, Inc. All rights reserved.
ADC is a registered trademark of ADC Telecommunications, Inc. WorldDSL is a trademark of ADC Telecommunications,
Inc. No right, license, or interest to such trademarks is granted hereunder, and you agree that no such right, license, or
interest shall be asserted by you with respect to such trademark.
Other product names mentioned in this practice are used for identification purposes only and may be trademarks or
registered trademarks of their respective companies.
Information contained in this document is company private to ADC Telecommunications, Inc., and shall not be modified,
used, copied, reproduced or disclosed in whole or in part without the written consent of ADC.
Contents herein are current as of the date of publication. ADC reserves the right to change the contents without prior
notice. In no event shall ADC be liable for any damages resulting from loss of data, loss of use, or loss of profits, and ADC
further disclaims any and all liability for indirect, incidental, special, consequential, or other similar damages. This
disclaimer of liability applies to all products, publications and services during and after the warranty period.
Rev Date Revisions
01 8/14/2009 Initial Release.
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