ADC HiGain HRE-420 User manual

HiGain
HiGain
USER MANUAL
HRE-420 Lists 1, 2, 3, and 4
HiGain Remote Indoor Enclosure
Product Catalog: 150-1115-01, 150-1115-02,
150-1115-03, 150-1115-04
CLEI: T1RHC904MA (List 1), T1RHC9A4MA
(List 2)

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Revision History of This Manual
To order copies of this document, use document catalog number 100-420-100-04.
Copyright
November 21, 2003
© 2003 ADC Telecommunications, Inc. All rights reserved.
Trademark Information
ADC is a registered trademark of ADC Telecommunications, Inc. HiGain is a registered trademark of ADC DSL Systems, 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.
Disclaimer of Liability
Information contained in this document is company private toADC DSL Systems, 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.
Issue Release Date Revisions Made
2June 14, 1996 Added List 4.
3February, 27, 2002 ADC rebranding of document - no technical changes.
4November 21, 2003 Updated Table 1, Power and Grounding section, HDSL Loop 1 and 2
section, and Product Support section.

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USING THIS MANUAL
Three types of messages, identified by icons, appear in text.
INSPECTING SHIPMENT
Upon receipt of the equipment:
•Unpack each container and inspect the contents for signs of damage. If the equipment has been damaged in
transit, immediately report the extent of damage to the transportation company and to ADC DSL Systems,
Inc. Order replacement equipment, if necessary.
•Check the packing list to ensure complete and accurate shipment of each listed item. If the shipment is short
or irregular, contact ADC DSL Systems, Inc. as described in “Product Support” on page 13. If you must store
the equipment for a prolonged period, store the equipment in its original container.
Notes contain information about special circumstances.
Cautions indicate the possibility of personal injury or equipment damage.
The Electrostatic Discharge (ESD) symbol indicates that a device or assembly is susceptible to
damage from electrostatic discharge.

Inspecting Shipment 100-420-100-04, Issue 4
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100-420-100-04, Issue 4 Table of Contents
HRE-420 Lists 1, 2, 3, and 4 November 21, 2003 v
TABLE OF CONTENTS
Product Overview ..............................................................................................................................1
Description And Features....................................................................................................1
Applications.........................................................................................................................2
Specifications.....................................................................................................................................2
Operating Temperature and Humidity.................................................................................2
Dimensions..........................................................................................................................2
Certification .......................................................................................................................................3
UL Listing............................................................................................................................3
CSA Certification ................................................................................................................3
Installation ...........................................................................................................................3
Installation Options and Wiring.........................................................................................................4
Mounting............................................................................................................................................5
Power and Ground Wiring.................................................................................................................5
List 1 and 2 DS1/HDSL Interface Wiring for HRU-412 Domestic Applications .............................6
HDSL Loop 1 and 2.............................................................................................................6
DS1 HRU Connections to CI...............................................................................................6
List 1, 2, 3, and 4 HDSL Interface Wiring for EDU-451 and HDU-451 Doubler Applications.......7
HDSL Loop 1 and 2 (IN).....................................................................................................7
HDSL Loop 1 and 2 Out Connections.................................................................................7
List 3 G.703 120 Ohm Interface Wiring for ERU-412 International Applications...........................8
HDSL Loop 1 and 2 (IN) Connections................................................................................8
120 Ohm G.703 Connections to C1.....................................................................................8
List 3 G.703 75 Ohm Interface Wiring for ERU-412 International Applications.............................8
HDSL Loop 1 and 2 (In) Connections.................................................................................8
G.703 75 Ohm ERU Connections to C1..............................................................................8
List 4 DS1 Interface Wiring for HRU-412 Canadian Applications...................................................8
Turn Up............................................................................................................................................12
Product Support................................................................................................................................13
Limited Warranty...................................................................................................Inside Back Cover
LIST OF FIGURES
1.HRE-420 Enclosure (Front View)....................................................................................................................1
2.HRE-420 Enclosures (Rear View) ...................................................................................................................4
3.HRE-420 Enclosure Cover and Wall Mounting Plate......................................................................................5
4.HRE-420 List 1 and 2 Printed Circuit Board and TB1 Pin Assignments ........................................................6

List of Tables 100-420-100-04, Issue 4
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5.HRE-420, List 1 and 2 Block Diagram............................................................................................................ 7
6.HRE-420, List 3 Printed Circuit Board and TB1 Pin Assignments.................................................................9
7.HRE-420, List 3 Block Diagram ..................................................................................................................... 9
8.HRE-420, List 4 Printed Circuit Board and TB1 Pin Assignments............................................................... 10
9.HRE-420, List 4 Block Diagram ................................................................................................................... 10
10.List 1, RJ-48C Pin Assignments.................................................................................................................... 11
11.List 2, RJ-48X Pin Assignments.................................................................................................................... 11
12.List 3 and List 4, DB-15 Pin Assignments .................................................................................................... 12
13.Wall Mounting Base ...................................................................................................................................... 12
LIST OF TABLES
1.Compatible Remote Plugs ............................................................................................................................... 2
2.List of Materials............................................................................................................................................... 4

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PRODUCT OVERVIEW
Description And Features
Figure 1. HRE-420 Enclosure (Front View)
ADC’s HiGain Remote Indoor Enclosure model HRE-420 can accept either one single width, “400 or 200”
mechanics type plugs (see Figure 1). The List 1 and 2 units have RJ-48C and RJ-48X DS1 interface connectors,
respectively. Their main applications are in the RBOCs (Regional Bell Operating Companies) and the
independent telephone companies in the United States. The List 3 unit has one DB15 and two BNC connectors
that comply with the G.703, (120 ohm balanced and 75 ohm unbalanced), international ERU-412 applications
respectively. The List 4 unit has one DB-15 and one RJ-48C connector which meet the DS1 Canadian interface
requirements. The HRE-420 compatible remote plugs and their technical practices are shown in Table 1 on
page 2:

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Applications
The HRE-420 enclosure consists of a wall mount section and a cover which slides over and is attached to the wall
mount section. The wall mount section has a printed circuit board which connects the card edge connector to
terminal block TB1, an RJ-48 (List 1 & 2), a DB-15 connector, and two BNC connectors (List 3) and an RJ-48C
and DB-15 connector (List 4). The 10-position terminal block (TB1) provides access to allinterface signal (HDSL
and DS1) connections plus battery and ground. A rear panel punch-out labeled LEC (Local Exchange Carrier)
provides cable access to TB1. The RJ-48 connector is configured as a non-shorting (looping) RJ-48C for List 1
and List 4, and a shorting (looping) RJ-48X for List 2.
The DB-15 connector and BNC connectors are provided in the List 3 unit only. The cover slides over the wall
mounted section and is secured to it with a screw.
Table 1. Compatible Remote Plugs
Model Document Catalog Number
HRU-402, List 1 & 3 150-1592-100-xx
HRU-402, List 1A 150-1592-111-xx
HRU-402, List 4 LTPH-TP-1024-xx
HRU-412, List 6 150-412-106-xx
HRU-412, List 7 150-412-107-xx
HRU-412, List 8 150-451-108-xx
HRU-412, List 9 150-412-109-xx
HRU-412, List 9B 150-412-192-xx
HLU-432, List 1 150-432-100-xx
HDU-451, List 1 & 2 150-451-100-xx
HDU-451, List 3 150-451-103-xx
HDU-451, List 4 150-451-104-xx
EDU-451, List 1 150-451-200-xx
EDU-451, List 2 150-451-202-xx
ERU-412, List 1 & 2 150-412-201-xx
HRU-512, List 1 150-512-100-xx
HRU-612, List 1 150-612-100-xx
The HDU-451 and EDU-451 are not UL listed and their use in the HRE-420 will void the UL
certification of the HRE-420.

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SPECIFICATIONS
Operating Temperature and Humidity
-40º to +65º Celsius, 5% to 95% (non-condensing)
Dimensions
Height: 6.5 in. (16.51 cm)
Width: 2.0 in. (5.08 cm)
Depth: 9.5 in. (24.13 cm)
Weight 22 oz (623.7 g)
CERTIFICATION
UL Listing
The HRE-420 is a UL-listed component. Use normal caution when installing or modifying telephone lines.
Dangerous voltages may be present. It is also considered imprudent to install telephone wiring during a lightning
storm. Always disconnect all telephone lines and power connections before servicing or disassembling this
equipment.
For performance and safety reasons, only power supplies listed for use with telephone equipment by a Nationally
Recognized Testing Laboratory (NRTL) should be used with ADC equipment.
CSA Certification
The HRE-420 has been tested and found to comply with CSA Standard C22.2 -950 with telecommunication
features.
Installation
Refer to the installation section of the appropriate instruction manual for the unit you are installing for:
•Cabling information
•Proper connections
•Grounding information
•Line vs. local power
All wiring external to the product(s) should follow the provisions of the current edition of the National Electrical
Code.
Use of the HDU-451 or EDU-451 doubler units in the HRE-420 will void UL certification.

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Figure 2. HRE-420 Enclosures (Rear View)
The ADC HRE-420 is a 1-slot wall mounted enclosure, which accepts one HiGain HRU-402 Remote Unit, one
HiGain HRU-412 Remote Unit, or one HiGain HDU-451 Doubler Unit. The List 1 and 2 units are primarily
intended for domestic use whilethe List 3 unitis used for International applications and the List 4 for Canadian applications.
INSTALLATION OPTIONS AND WIRING
The following material is included with each HRE-420.
These units contain no user serviceable components. Only authorized ADC Service Personnel
should service or repair these units. Use only with isolated Class 2 power source, rated 48 Vdc
3.0A maximum.
Table 2. List of Materials
Description Quantity
HRE-420 Technical Practice 1
#10 x 3/8pan head sheet metal screws 3
Ten 32 x 3/8button tamper-proof screw 1
Circuit assignment label 1
Drilling template 1

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The tamper-proof screw can replace the factory provided blade “securing screw” shown in Figure 3. This screw
requires an Allen key wrench, available on request, to install. It is intended to provide additional security if
desired. The gummed Circuit Assignment Label is for circuit I.D.#. It can be attached to any convenient location
on the enclosure. The RJ-48 jack comes with a small metal cover. This is provided to prevent access to the DS1
interface when the Customer Interface (CI) is external to the HRE-420. This makes the HRE-420, List 1 and 2,
MPOE (Minimum Point Of Entry) compliant.
MOUNTING
Select a location for wall mounting the unit which will allow sufficient access to wiring connections on the right
and indicators, test jacks, etc., on the left, see Figures 3 and 13. Lift the enclosure cover off the wall mounting
plate and use it, or the drilling template provided, as a template for drilling or locating mounting holes. Attach the
plate securely to the wall.
Figure 3. HRE-420 Enclosure Cover and Wall Mounting Plate
The HRE-420 cover is equipped with a securing screw for added security. Three holes are located on the mounting
plate for securing the unit to a vertical surface.
POWER AND GROUND WIRING
Attach earth ground to the FRAME GND lug. If local power is required connect -48 V to TB1-2 and power return
(CKT GRD) to TB1-1. See Figure 5 for List 1 and 2, Figure 7 for List 3, and Figure 9 for List 4 applications. The
List 3 coils, L1 and L2 in Figures 6 and 7, are balanced longitudinal (simplex) suppression chokes located in the
T and R of the 2 HDSL pairs. They prevent excessive common mode AC voltage impairments from entering the
HRE-420 module where they could cause transmission errors.

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LIST 1 AND 2 DS1/HDSL INTERFACE WIRING FOR HRU-412
DOMESTIC APPLICATIONS
HDSL Loop 1 and 2
The HDSL LOOP 1 and 2 are the two HDSL pairs coming to the HRE-420 from the field cable pairs, see Figures
4 and 5. Connect HDSL LOOP 1 (IN) to TB1-3 (T) and TB1-4 (R). Connect HDSL LOOP 2 (IN) to TB1-5 (T1)
and TB1-6 (R1). Since the HDSL signals are bi-directional, they do not carry a ”transmit” or “receive”
designation. With reference to T1 terminology, however, Loop 1 is called the “receive pair” and Loop 2 the
“transmit pair”.
DS1 HRU Connections to CI
The HRU’s DS1 CPE interface ports may also be connected to either the RJ-48C, see Figure 10, or the RJ-48X
jack (J2), see Figure 11, located on the rear panel of the HRE-420, or directly to TB1. If TB1 is used, connect the
DS1 output from the CPE (XMT) to TB1-9 (T) and TB1-10 (R). Connect the DS1 input to the CPE (RCV) to
TB1-7 (T1) and TB1-8 (R1). Note if TB1 is used for the CPE access when using the List 2 HRE-420, the shorted
pins in the RJ-48X jack J2 must be opened. This is accomplished by inserting a dummy RJ-48 plug into J2.
Figure 4. HRE-420 List 1 and 2 Printed Circuit Board and TB1 Pin Assignments
The diagram differentiates between the List 1 and List 2 units by the type of jack used. The List 1 unit uses an RJ48C while
the List 2 unit uses an RJ48X.

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LIST 1, 2, 3, AND 4 HDSL INTERFACE WIRING FOR EDU-451 AND
HDU-451 DOUBLER APPLICATIONS
HDSL Loop 1 and 2 (IN)
The HDSL LOOP 1 and 2 (IN) ports connect the two HDSL pairs coming to the HRE-420/doubler installation
from the field cable pairs connected to the line unit, see Figures 4 through 9. Connect HDSL LOOP 1 (IN) to
TB1-3 (T) and TB1-4 (R). Connect HDSL LOOP 2 (IN) to TB1-5 (T1) and TB1-6 (R1). Since the HDSL signals
are bi-directional, they do not carry a ”transmit” or “receive” designation. With reference to T1 terminology,
however, Loop 1 is called the “receive pair” and Loop 2 the “transmit pair”.
HDSL Loop 1 and 2 Out Connections
The HDSL LOOP 1 and 2 OUT ports connect the two HDSL pairs coming from the HRE/doubler installation to
the field cable pairs going towards the remote unit, see Figures 4 through 9. Note that the List 3 jumpers, JP1 and
JP2, must be open for this application. Connect HDSL LOOP 1 OUT to TB1-7 (T1) and TB1-8 (R1). Connect
HDSL LOOP 2 OUT to TB1-9 (T) and TB1-10 (R). The doubler connections for this application are shown in
parenthesis in the block diagram, see Figure 5. This is done to highlight the fact that these same pins support
different interfaces in other applications.
Figure 5. HRE-420, List 1 and 2 Block Diagram

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LIST 3 G.703 120 OHM INTERFACE WIRING FOR ERU-412
INTERNATIONAL APPLICATIONS
HDSL Loop 1 and 2 (IN) Connections
The HDSL LOOP 1 and 2 (IN) ports connect the two HDSL pairs coming to the HRE-420/ERU installation from
the field cable pairs connected to the line unit, see Figures 6 and 7.
Connect HDSL LOOP 1 (IN) to TB1-3 (T) and TB1-4 (R). Connect HDSL LOOP 2 (IN) to TB1-5 (T1) and TB1-6
(R1). Since the HDSL signals are bi-directional, they do not carry a ”transmit” or “receive” designation.
120 Ohm G.703 Connections to C1
The G.703 120 ohm balance CPE interface ports connect to the DB-15 jack J5 located on the rear panel of the
HRE-420, or directly to TB1, see Figure 12. If TB1 is used, connect the G.703 output from the CPE (XMT) to
TB1-9 (T) and TB1-10 (R). Connect the G.703 input to the CPE (RCV) to TB1-7 (T1) and TB1-8 (R1). Note that
jumper JP2 complies with the CCITT G.703 requirement to provide the option to connect the input’s outside
connector (case) to earth (frame ground). JP2 provides this option for the 120 ohm connector J5.
LIST 3 G.703 75 OHM INTERFACE WIRING FOR ERU-412
INTERNATIONAL APPLICATIONS
HDSL Loop 1 and 2 (In) Connections
The HDSL LOOP 1 and 2 (IN) ports connect the two HDSL pairs coming to the HRE-420/ERU installation from
the field cable pairs connected to the line unit, see Figures 6 and 7. Connect HDSL LOOP 1 (IN) to TB1-3 (T) and
TB1-4 (R). Connect HDSL LOOP 2 (IN) to TB1-5 (T1) and TB1-6 (R1). Since the HDSL signals are
bi-directional, they do not carry a ”transmit” or “receive” designation.
G.703 75 Ohm ERU Connections to C1
The G.703 75 ohm unbalanced CPE interface ports connect to the J3 and J4 BNC connectors located on the rear
panel. Jumper JP1 complies with the CCITT G.703 requirement to provide the option to connect the ring lead
(outer conductor) of the input port to earth (frame ground). JP1 provides this option for the 75 ohm connector J3.
LIST 4 DS1 INTERFACE WIRING FOR HRU-412 CANADIAN
APPLICATIONS
The HRU’s DS1 CPE interface ports may be connected to the DB-15 jack J5 on to the RJ-48C jacks located on
the rear panel of the HRE-420, or directly to TB1, see Figures 8 and 9. If TB1 is used, connect the DS1 output
from the CPE (XMT) to TB1-9 (T) and TB1-10 (R). Connect the DS1 input to the CPE (RCV) to TB1-7 (T1) and
TB1-8 (R1).

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HRE-420 Lists 1, 2, 3, and 4 November 21, 2003 9
Figure 6. HRE-420, List 3 Printed Circuit Board and TB1 Pin Assignments
The diagram differentiates the List 3 unit by illustrating the two BNC connectors on the upper right hand side of
the circuit board.
Figure 7. HRE-420, List 3 Block Diagram

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Figure 8. HRE-420, List 4 Printed Circuit Board and TB1 Pin Assignments
The List 4 unit supports the Canadian DS1 interface requirements.
Figure 9. HRE-420, List 4 Block Diagram
LIST 4

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HRE-420 Lists 1, 2, 3, and 4 November 21, 2003 11
Figure 10. List 1, RJ-48C Pin Assignments
Figure 11. List 2, RJ-48X Pin Assignments
DS1 RCV
HDSL LOOP 2 OUT
or
or
DS1 XMT
HDSL LOOP 1 OUT
RING 1
TIP 1
RING
TIP
J2
I
N
T
E
R
F
A
C
E
1
2
3
4
5
6
7
8
DS1 RCV
HDSL LOOP 2 OUT
DS1 XMT
HDSL LOOP 1 OUT
or
or
RING 1
TIP 1
RING
TIP
I
N
T
E
R
F
A
C
E
J2
1
2
3
4
5
6
7
8

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Figure 12. List 3 and List 4, DB-15 Pin Assignments
TURN UP
Slide the HRU, ERU, HDU, or EDU cardalong the two card guides and into the edge connector as shown in Figure
13. It should be seated firmly in the connector. Refer to the appropriate ADC user manuals listed in Paragraph
1.01 for complete turn-up instructions.
Figure 13. Wall Mounting Base
DS1/G.783 XMT
(HDSL LOOP 2 OUT)
LIST 3 ONLY
JP2
FRAME
GND
FRAME
GND
LIST 4 ONLY
DS1/G.783 RCV
(HDSL LOOP 1 OUT)
(Doubler Connections)
CPE
or
(SPAN)
DB15
(female)
TB1 J5

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The wall mount plate has a printed circuit board which connects the card edge connector to terminal block TB1.
The lug holes for this List 1/List 2 mounting base are typical for all HRE-420 enclosures.
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
•Quotation Proposals
•Ordering and Delivery
•General Product Information
Systems Integration
800.366.3891
•Complete Solutions (from concept to installation)
•Network Design and Integration Testing
•System Turn-Up and Testing
•Network Monitoring (upstream or downstream)
•Power Monitoring and Remote Surveillance
•Service/Maintenance Agreements
•Systems Operation
ADC Technical Assistance Center
800.366.3891 x73223
952.917.3223
Fax: [phone]
Email: [email protected]
•Technical Information
•System/Network Configuration
•Product Specification and Application
•Training (product-specific)
•Installation and Operation Assistance
•Troubleshooting and Repair/Field Assistance
Online Technical Support •www.adc.com/Knowledge_Base/index.jsp
Online Technical Publications •www.adc.com/documentationlibrary/technicalpublications/
Product Return Department
800.366.3891
Email: [email protected]
•ADC Return Material Authorization (RMA) number and instructions must
be obtained before returning products.
All telephone numbers with an 800 prefix are toll-free in the USA and Canada.

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