PairGain HiGain HRE-420 List 1B User manual

HIGAIN REMOTE INDOOR ENCLOSURE
PAIRGAIN TECHNOLOGIES, INC.
ENGINEERING SERVICES TECHNICAL PRACTICE
SECTION 150-420-112-01
Revision History of This Practice
Revision 01—December 22, 1997
A) Initial Release
Model List Number Part Number
HRE-420 1B 150-1115-12

Revision 01 December 22, 1997 150-420-112-01
ii PairGain Engineering - Plant Series HRE-420 List 1B
©Copyright 1997 PairGain Technologies, Inc.
PairGain and HiGain are registered trademarks of PairGain Technologies, Inc.
Information contained in this documentis companyprivate to PairGain Technologies,Inc.,
and shall not be modified, used, copied, reproduced or disclosed in whole or in part without
the written consent of PairGain.
Other product names mentioned in this practice are used for identification purposes only
and may be trademarks or registered trademarks of their respective companies.

150-420-112-01 December 22, 1997 Revision 01
HRE-420 List 1B PairGain Engineering - Plant Series iii
USING THIS MANUAL
Two types of messages, identified by icons, appear in the text.
Notes contain information about special circumstances.
Cautions indicate the possibility of equipment damage or the
possibility of personal injury.

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iv PairGain Engineering - Plant Series HRE-420 List 1B
TABLE OF CONTENTS
Overview________________________________________________1
Wall Mount...............................................................................1
Cover........................................................................................2
Installation Options and Wiring_____________________________2
List of Material.........................................................................2
Mounting ..................................................................................3
Wiring.......................................................................................4
Installing the HRU....................................................................7
Specifications ...........................................................................7
Certification and Warranty ________________________________8
VCCI Certification ...................................................................8
UL Listing ................................................................................8
Warranty...................................................................................9
Technical Support _______________________________________10
Phone or Fax...........................................................................10
Returns....................................................................................10
World Wide Web....................................................................11

150-420-112-01 December 22, 1997 Revision 01
HRE-420 List 1B PairGain Engineering - Plant Series 1
OVERVIEW
The PairGain®HiGain®Remote Indoor Enclosure model HRE-420 List 1B
(Figure 1) includes the following features :
•A wall mount section and cover
•The RJ-48C DS1 interface connectors
•A 1-slot wall mountedenclosure that accepts one HiGain 400-mechanics
Remote Unit (model HRU-412 List 8B)
Figure 1. HRE-420 Enclosure (Rear View)
Wall Mount
The wall mount has a printed circuit board that connects the card-edge
connector to terminal block TB1 and to an RJ-48 connector:
•TB1 is a 10-position terminal block that provides access to all interface
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 RJ-48C.

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Cover
The cover slides over the wall mounted section and is secured to it with a
screw.
INSTALLATION OPTIONS AND WIRING
This section describes the installation procedure for the HRE-420 List 1B.
List of Material
The following material is included with each HRE-420 List 1B.
Tamper-Proof Screw
The tamper-proof screw can replace the factory provided blade “securing
screw” shown in Figure2. This screw requiresan Allen key wrench, available
on request, to install. It is intended to provide additional security if desired.
Circuit Assignment Label
The gummed Circuit Assignment Label is for circuit I.D.#. It canbe attached
to any convenient location on the enclosure.
DESCRIPTION QTY
10 x 3/8 pan head sheet metal screws 3
10 - 32 x 3/8 button tamper-proof screw 1
Circuit Assignment Label 1
Drilling Template 1

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HRE-420 List 1B PairGain Engineering - Plant Series 3
RJ-48 Jack
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 List 1B. This makes the HRE-420 List 1B MPOE (Minimum
Point Of Entry) compliant.
Mounting
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.
To wall mount the HRE-420 List 1B:
1Select a location that will allow sufficient access on the right side for
wiring connections, and on the left for indicators, test jacks, and other
components. See Figures 2and 6.
2Lift the enclosure cover off the wall mounting plate (Figure 2).
Figure 2. HRE-420 Enclosure Cover and Wall Mounting Plate
3Use the mounting plate or theprovided drilling template as atemplate for
drilling or locating mounting holes.

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4 PairGain Engineering - Plant Series HRE-420 List 1B
4Attach the plate securely to the wall.
Wiring
Figure 3 shows the HRE-420 List 1B printed circuit board and TB1 pin
assigments. Figure 3 shows the HRE-420 List 1B pinout connections.
Figure 3. HRE-420 List 1B Printed Circuit Board and TB1 Pin Assignments

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HRE-420 List 1B PairGain Engineering - Plant Series 5
Figure 4. HRE-420 List 1B Pin-out Connections
Power and Ground Wiring
Attach earth ground to the FRAMEGND lug iflocal practice dictates. If local
power is required, connect -48 V to TB1-2 and power return (CKT GND) to
TB1-1 (Figure 4).
The wall mountplate has aprinted circuit board which connects the card edge
connector to terminal block TB1. The lug holes for this List 1B mounting
base are typical for all HRE-420 enclosures.
HDSL Interface Wiring for HRU-412 Applications
HDSL LOOP 1 and 2 are the two HDSL pairs coming to the HRE-420 from
the field cable pairs as shown in Figures 3and 4.

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Since the HDSL signals are bi-directional, they do not carry a ”transmit” or
“receive” designation. With reference to T1 terminology, however, Loop1 is
called the “receive pair” and Loop 2 the “transmit pair.”
To connect the HDSL wires:
1Connect HDSL LOOP 1 (IN) to TB1-3 (T) and TB1-4 (R).
2Connect HDSL LOOP 2 (IN) to TB1-5 (T1) and TB1-6 (R1).
DS1 HRU Connections to CI
The HRU DS1 CPE interface ports can beconnected to either the RJ-48C (see
Figure5), located on the rearpanel of the HRE-420,or directly to TB1. IfTB1
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).
Figure 5. HRE-420 List 1B, RJ-48C Pin Assignments
If the leads are reversed, a CHREV message displays in the ALARMS
display field when viewing the Span Status screen (accessed through
a dumb terminal connected to a HiGain Craft port). This condition
does not affect system operation but should be corrected to avoid any
confusion regarding the identities of the 2 HDSL loops.

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HRE-420 List 1B PairGain Engineering - Plant Series 7
Installing the HRU
Slide the HRU card along the two card guides and into the edge connector as
shown in Figure 6. It should be seated firmly in the connector. Refer to the
appropriate PairGain HRU Technical Practice for further information on
using the HRU.
Figure 6. Wall Mounting Base
Specifications
Operating Temperature and Humidity
-40º to +65º Celsius, 5% to 95% (non-condensing)
Dimensions
Height: 16.5 cm
Width: 5.1 cm
Depth: 24.1 cm
Weight: 624 gm

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CERTIFICATION AND WARRANTY
The HRE-420 List 1B is VCCI certified and UL listed. Information on
certification and warranty is shown below.
VCCI Certification
This equipment hasbeen tested and found to comply with the limits for VCCI
Class A Requirements. 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 this
instruction manual, may cause harmful interference to radio communication.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off
and on,the user isencouraged to try tocorrect theinterference by one ormore
of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
UL Listing
The HRE-420 List 1B is listed with the Underwriter Laboratory.
Use caution when installing or modifying telephone lines. Dangerous
voltages may be present. Do not install telephone wiring during a lightning
storm. Always disconnect telephone lines and power connections from wall
outlets before servicing or disassembling this equipment.
All wiring external to the product should follow the provisions of the current
edition of the National Electrical Code.

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HRE-420 List 1B PairGain Engineering - Plant Series 9
Warranty
PairGain Technologies, Incorporated warrants its products to be free of
defective and faulty workmanship for a period of 60 months, under normal
use, from the date of shipment. PairGain's obligation, under this warranty, is
limitedto replacing or repairing, at PairGain's option, anysuch productwhich
is returned during the warranty period per PairGain's instructions and which
product, in PairGain's sole opinion, is determined to be defective upon
examination at our plant.
The transportation charges from the Buyer to PairGain will be prepaid by the
Buyer. When the equipment is shipped back to the Buyer, PairGain will pay
the charges, unless no trouble is found (NTF), in which case the buyer will
pay for the shipment.
PairGain may use reconditioned parts for such repair or replacement. This
warranty does not apply to any product which has been repaired, worked
upon, or altered by persons not authorized by PairGain or in PairGain's sole
judgment has subjected to misuse, accident, fire or other casualty, or
operation beyond its design range.
Repaired products have a 90-day warranty, or until the end of the original
warranty period--whichever period is greater.
Modules sent to PairGain for repair will be repaired or replaced and returned
to you as soon as possible. Normally, current products are repaired within 14
calendardays,andout-of-productionproductsarerepairedwithin30 calendar
days.

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TECHNICAL SUPPORT
PairGain provides technical support by phone, fax, and the World Wide Web.
Phone or Fax
PairGain Technical Assistance is available 24 hours a day, 7 days a week by
contacting PairGain’s Customer Service Engineering group at one of the
following numbers:
•Telephone: [phone]
[phone]
•Fax: [phone]
A Customer Service Engineer answers technical assistance calls Monday
through Friday between 8:00 AM and 5:00 PM, Pacific Time, excluding
holidays. At all other times, an on-duty Customer Service Engineer returns
technical assistance calls within 30 minutes.
Returns
To return equipment to PairGain:
1Locate the number of the purchase order under which the equipment was
purchased. You will need to provide this number to PairGain Customer
Service to obtain a return authorization.
2Call or write PairGain Customer Service to ask for a Return Material
Authorization (RMA) number and any additional instructions. Use the
telephone or fax number listed below:
•Telephone: [phone]
•Fax: [phone]
3Include the following information, in writing, along with the equipment
you are returning:
•Company name, address, and the name of a person PairGain can
contact regarding this equipment.
•The purchase order number provided to Customer Service when the
RMA number was requested.

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HRE-420 List 1B PairGain Engineering - Plant Series 11
•A description of the equipment, as well as the number of units that
you are returning. Be sure to include the model and part number of
each unit.
•The shipping address to which PairGain should return the repaired
equipment.
•The reason for the return:
a) The equipment needs an ECO/ECN upgrade.
b) The equipment is defective.
c) If there is another reason for returning the equipment, please let
us know so we can determine how best to help you.
4Pack the equipment in a shipping carton.
5Write PairGain’s address and the Return Material Authorization Number
you received from Customer Service clearly on the outside of the carton:
PairGain Technologies, Inc.
14352 Franklin Ave.
Tustin, CA 92780-7013
Attention: CRF RMA (Number)
World Wide Web
PairGain product, company, and application information can be found at
http://www.pairgain.com using any Web browser.
If the equipment is defective, please tell us what you observed
just before the equipment malfunctioned. Be as detailed in your
description as possible.

Corporate Office
14402 Franklin Avenue
Tustin, CA 92780
Tel: [phone]
Fax: [phone]
For Technical Assistance:
[phone]