PairGain HRE-204 List 1A Instructions for use
HIGAIN REMOTE ENCLOSURE
TECHNICAL PRACTICE
HRE-204 List 1A
Part Number: 150-2203-11
CLEI Code: T1M3DG0A
HRE-204 List 2A
Part Number: 150-2203-21
CLEI Code: T1M3EG0A
™150-204-111-01V¨
Section 150-204-111-01
150-204-111-01, Revision 01
ii April 7, 2000 HRE-204 List 1A and List 2A
Revision History of This Practice
©Copyright 2000 PairGain Technologies, Inc.
PairGain and HiGain are registered trademarks and HiGain Solitaire, The Power Behind DSL Access, and the PairGain logo
design are trademarks of PairGain Technologies, Inc. No right, license, or interest to such trademarks is granted hereunder, and
you agree that you shall assert no such right, license, or interest with respect to such trademarks. All other product names
mentioned in this document are used for identification purposes only and may be trademarks or registered trademarks of their
respective companies.
Information contained in this document is company privateto PairGainTechnologies, Inc.,and shallnot be modified, used, copied,
reproduced or disclosed in whole or in part without the written consent of PairGain.
Information furnished by PairGain Technologies is believed to be accurate and reliable. However, no responsibility is assumed by
PairGain Technologies for its use; nor for any infringement of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of PairGain Technologies. PairGain
Technologies reserves the right to change specifications at any time without notice.
Revision Release Date Revisions Made
01 November 3, 1999 Initial release.
02 April 7, 2000 New firmware.
150-204-111-01, Revision 01 Using This Technical Practice
HRE-204 List 1A and List 2A April 7, 2000 iii
USING THIS TECHNICAL PRACTICE
The following conventions are used in this manual:
•Monospace type indicates screen text, including text you type at a screen prompt.
•Keys you press are indicated by small icons such as . Key combinations to be pressed simultaneously
are indicated with a plus sign as follows: + .
•Three types of messages, identified by icons, appear in text.
For a list of abbreviations used in this document, refer to “Appendix C - Abbreviations” on page 22.
DOCUMENTATION
the product name and the section number of the document in the subject area of the email message.
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 PairGain. 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 PairGain as described in the Warranty located inside the back cover. 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 equipment damage or personal injury.
The Electrostatic Discharge (EDS) susceptibility symbol indicates that a device or assembly is
susceptible to damage from electrostatic discharge.
ENTER
CTRL ESC
Inspecting Shipment 150-204-111-01, Revision 01
iv April 7, 2000 HRE-204 List 1A and List 2A
150-204-111-01, Revision 01 Table of Contents
HRE-204 List 1A and List 2A April 7, 2000 v
TABLE OF CONTENTS
Overview ____________________________________________________________________________ 1
Features..............................................................................................................................................1
Applications .......................................................................................................................................1
Backplane...........................................................................................................................................2
Slot Connectors..................................................................................................................................4
Installation___________________________________________________________________________ 5
Installation Kit....................................................................................................................................5
Mounting Options..............................................................................................................................5
Mounting the Product Nickname on a Desktop...................................................................5
Mounting the Product Nickname on a Wall........................................................................6
Optional Hinged Wall Mounting.........................................................................................8
Completing Turnup............................................................................................................................8
Power and Grounding _________________________________________________________________ 9
48 Volt Power Options.....................................................................................................................10
HLU Alarm Output Interface...........................................................................................................11
Facility Side HDSL Connections.....................................................................................................11
CPE DS1 Connections .....................................................................................................................13
Appendix A - Specifications____________________________________________________________ 15
Bar Code and Configuration Number Information..........................................................................16
Slot Pin Assignments.......................................................................................................................17
Appendix B - Product Support _________________________________________________________ 20
Technical Support............................................................................................................................20
World Wide Web .............................................................................................................................20
Returns.............................................................................................................................................20
Appendix C - Abbreviations ___________________________________________________________ 22
Certification and Warranty______________________________________________ Inside Back Cover
LIST OF FIGURES
1. HRE-204 List 1A and List 2A Backplane.......................................................................................................2
2. Backplane Slot Connections............................................................................................................................3
3. HRE-204 List 1A and List 2A Remote Enclosure Slot Connectors................................................................4
4. Side Panel Assembly.......................................................................................................................................6
5. HRE-204 Backplate.........................................................................................................................................7
6. Wall Mounting and Hinging View..................................................................................................................7
7. Optional Mounting Hinge................................................................................................................................8
List of Tables 150-204-111-01, Revision 01
vi April 7, 2000 HRE-204 List 1A and List 2A
8. TB3 and TB4 Pin Assignments .................................................................................................................... 10
9. System Alarm (TB5) Pin Assignments......................................................................................................... 11
10. TB1 Pin Assignments (Slot 1) ...................................................................................................................... 11
11. TB2 Pin Assignments (Slots 2, 3, and 4)...................................................................................................... 12
12. RJ48C Pin Assignments (List 1A)................................................................................................................ 13
13. RJ48X Pin Assignments (List 2A)................................................................................................................ 14
14. Bar Code and Configuration Number Label Locations................................................................................ 16
15. HRU-402, List 4 Pin Assignments ............................................................................................................... 17
16. HLU-432 Pin Assignments........................................................................................................................... 18
17. H2TU-R-402, List 4 (HDSL2) Card-Edge Connector Assignments............................................................ 19
LIST OF TABLES
1.Backplane Connectors ..................................................................................................................................... 2
2.Power Requirements for Various Plug Applications..................................................................................... 10
3.Bar Code and Configuration Number Label Descriptions............................................................................. 16
150-204-111-01, Revision 01 Overview
HRE-204 List 1A and List 2A April 7, 2000 1
OVERVIEW
This document describes the PairGain®HiGain®Remote Enclosure HRE-204 List 1A and List 2A that houses
HiGain Line Units (HLUs) and remote units (HRUs). The HRE-204 List 1A has RJ48C DS1 connectors, and the
HRE-204 List 2A has RJ48X connectors.
FEATURES
The HRE-204 List 1A and List 2A provide the following features:
•four 200-mechanics or two 400-mechanics slots
•RJ48C (List 1A) or RJ48X (List 2A) modular jack for DS1 customer interface connections
•printed-circuit backplane with terminal block and RJ48 connectors
•tamper-proof locking screw for security
•48 V input power for HLU applications
•separate input terminals for slot isolation
•wall or desktop mounting
•optional wall-hinge mount
•pre-painted, cold-rolled, #16 gauge steel construction
APPLICATIONS
HiGain provides a quick and cost-effective way of delivering T1 High Capacity Digital Service (HCDS) to
customers over metallic cable pairs. The HRE-204 houses units for a HiGain repeaterless T1 transmission system.
The HRE-204 List 1A and List 2A uses standard 200-mechanics and 400-mechanics slots
and can accommodate any plug with 200-mechanics or 400-mechanics, including the
HiGain HRU-402 (HDSL) and H2TU-R-402 (HDSL2) remote units, and the HLU-432 (HDSL)
line unit.
Since the HRE-204 supports chassis ground to pin 27, it is not compatible with PairGain
legacy HDSL HRU-412 remotes that only use pin 1 for chassis ground.
The HRE-204 provides a chassis ground connection to pin 27 only in every slot.
Overview 150-204-111-01, Revision 01
2 April 7, 2000 HRE-204 List 1A and List 2A
BACKPLANE
Figure 1 shows the HRE-204 backplane. Table 1 describes its connectors.
Figure 1. HRE-204 List 1A and List 2A Backplane
Table 1. Backplane Connectors
Connector(s) Function
J5 through J8 RJ48C CPE (Customer Premises Equipment) jacks (List 1A) or RJ48X jacks (List 2A)
TB1 Terminal block connector for Slot 1 CPE (DS1) and FAC (Forced Authorization Code - HDSL) interfaces
TB2 Terminal block connector for Slots 2, 3, and 4 CPE and FAC interfaces
TB3 Terminal block connector for providing 48VA and GND A power connections to Slots 1 and 2
TB4 Terminal block connector for providing 48VB and GND B power connections to Slots 3 and 4
TB5 Terminal block connector for HLU alarm output interface
G1 Frame ground lug (pin 27 for all four slots)
150-204-111-01, Revision 01 Installation
HRE-204 List 1A and List 2A April 7, 2000 5
INSTALLATION
This section provides information on installing and mounting the HRE-204.
INSTALLATION KIT
•two mounting screws
•two anchor nuts
MOUNTING OPTIONS
The HRE-204 is suitable for mounting on a desktop or on a wall. Before setting up the equipment, select a location
that provides appropriate security.
Mounting the HRE-204 on a Desktop
The remote enclosure includes four inverted dimplesin the bottom plate for desktop mounting. The dimplescreate
an air gap between the bottom of the enclosure and the surface of the desk. This prevents overheating by providing
air flow through the enclosure. Do not block the air flow from the bottom of the unit.
Regardless of where the HRE-204 is mounted, PairGain recommends that the frame ground
lug be connected to earth ground according to the grounding recommendations found in
Section 9 of Bellcore’s GR-1089-DEC, 1996. See “Power and Grounding”on page 9 for more
information.
Installation 150-204-111-01, Revision 01
6 April 7, 2000 HRE-204 List 1A and List 2A
Mounting the HRE-204 on a Wall
1Loosen the 216 HEX security nut on the side panel (Figure 4) with a 7/16-inch CAN wrench.
Figure 4. Side Panel Assembly
2Remove the side panel.
3Remove the top retaining screw that holds the backplate to the chassis.
4Grip the top of the rear panel, which is held in place with friction latching clasps, and unlatch it from the
enclosure.
150-204-111-01, Revision 01 Installation
HRE-204 List 1A and List 2A April 7, 2000 7
5Use the backplate as a template to mark the wall locations for drilling the mounting holes (Figure 5).
.
Figure 5. HRE-204 Backplate
6Drill pilot holes and attach the backplate to the backboard with the two number 10 x 5/8-inch sheet metal
screws and washers supplied with the remote enclosure.
7Rotate the main chassis up and snap it into the friction latching clasp.
Figure 6. Wall Mounting and Hinging View
8Reattach the side panel and tighten the 216 HEX security nut to secure it to the main chassis.
The transparent Lexan panel in the front cover makes slight contact with the card handles when it is reattached.
This prevents walk-out due to vibration and is a standard feature of the HRE-204.
When the main chassis is attached to the backplate, it can be rotated down to provide access
to the backplane connector and other internal areas. Unlatch the chassis from thetwo friction
clasps in the upper corner of the backplate to lower it. See Figure 6 for hinging details.
Installation 150-204-111-01, Revision 01
8 April 7, 2000 HRE-204 List 1A and List 2A
Optional Hinged Wall Mounting
To reduce the forward profile of the wall-mounted HRE-204, a wall mount hinge assembly (part number
150-2224-01) is available to attach the side of the unit flush to the wall. This reduces the outward projection from
7.5 inches to 4.8 inches.
1Use the hinge as a template to mark the wall location for drilling the mounting holes.
2Drill pilot holes and attach the hinge to the wall with the two No. 10 x 5/8-inch sheet metal screws supplied
with the hinge assembly.
3Use the two 6-32 x 1/4-inch machine screws, supplied with the hinge assembly, to attach the hinge to the two
mounting holes on the HRE-204 backplate, as shown in Figure 7.
Figure 7. Optional Mounting Hinge
4The two snap-in standoffs on the hinge bracket fit into two mounting holes in the HRE-204 side panel when
the enclosure is closed against the hinge. This secures the HRE-204 to the hinge and prevents normal
vibration from jarring it loose.
COMPLETING TURNUP
Once the HRE-204 is mounted, insert the card into the unit in the following manner:
1Loosen the 216 HEX security nut on the side panel (Figure 4 on page 6) with a 7/16-inch CAN wrench.
2Remove the side panel from the chassis to expose the card slots.
3Insert the card in the assigned slots and refer to the card’s technical practice for the appropriate turnup
procedure. (See “Appendix B - Product Support”on page 20 for obtaining technical practice information.)
If you are using the HRE-204 to locally power one or more HRUs or HLU-431, see “48 Volt Power Options”on
page 10. If you install an HLU-431 into the HRE-204, see “HLU Alarm Output Interface”on page 11 for
information about the alarm output interface.
150-204-111-01, Revision 01 Power and Grounding
HRE-204 List 1A and List 2A April 7, 2000 9
POWER AND GROUNDING
The chassis frame ground is connected to pin 27, which is connected to each slot as well as the backplane ground
lug G1, as shown in Figure 1 on page 2. Connect the frame ground lug to the earth ground according to the
grounding recommendations found in Section 9 of Bellcore’s GR-1089-DEC, 1996.
Failure to properly ground the enclosure can cause unsafe voltage levels to occur which
can result in the following adverse situations:
•a shock hazard to craft personnel who come into contact with the enclosure
•damage to the installed circuits if the normal discharge path to earth ground of the
enclosure’s secondary surge voltage protection components is missing
•bit errors dueto the inability of the unground enclosure to attenuate thenoise inducing
energy from stray EMI fields
•bit errors due to crosstalk from adjacent communication equipment.
The HRE-204 List 1A and List 2A support mechanics that use pin 27for the frame (chassis)
ground access.
In certain unusual noise environments, it may be necessary to connect the HRU’s circuit
ground pin 17 to frame ground pin 27 of the card-edge connector to remove bit errors from
the T1 payload.
Power and Grounding 150-204-111-01, Revision 01
10 April 7, 2000 HRE-204 List 1A and List 2A
48 VOLT POWER OPTIONS
When using the HRE-204 to locally power HRU plugs or HLU-432 line unit, the 48 V power can be provided in
either isolated or non-isolated mode. Power is provided to terminal blocks TB3 and TB4, the pin assignments for
which are shown in Figure 8.
The isolated mode requires two separate external power supplies, which are connected to TB3 for Slots 1 and 2,
and to TB4 for Slots 3 and 4. This isolated mode prevents the loss of all circuits if one power supply fails.
The non-isolated mode only uses one power supply, but has no fail-safe feature. All circuits are lost if the power
supply fails. To connect a single power supply for non-isolated mode:
1Connect the power supply to either TB3 or TB4.
2Connectthe equivalentpinsofthe unusedterminalblock to theactive terminalblock.This connectsthepower
source to all slots.
Figure 8. TB3 and TB4 Pin Assignments
Third party wall mountpower supplies can be used to provide -48 V power for various plugapplications, as shown
in Table 2.
Table 2. Power Requirements for Various Plug Applications
HiGain Unit Maximum
power per unit
Number
of units
Current
Required (mA) Power supply
Input Power
AWG Wire Size (a)
(Two Inputs) (One Input)
(a) Minimum input power lead wire size current capacity is based on 1000 circular mils per ampere.
HRU-402, List 4 3.5 Watts 173 Westell 6048-01 (100 ma) 26 AWG 26 AWG
1, 2, or 3 210 Teltrend 2005 (250 ma) 26 AWG 26 AWG
4300 Troncom WPS-4806 (520 ma) 26 AWG 26 AWG
H2TU-R-402, List 4 6 Watts 1125 Teltrend 2005 26 AWG 26 AWG
2250 Troncom WPS-4806 26 AWG 26 AWG
HLU-432
(no doublers)
14 Watts 1
2
300
600
Troncom WPS-4806
Troncom WPS-4810
26AWG
26 AWG
26 AWG
22 AWG
HLU-432
(with doublers)
24 Watts 1
2
500
1000
Troncom WPS-4806
Troncom WPS-4810
26 AWG
22 AWG
22 AWG
20 AWG
150-204-111-01, Revision 01 Power and Grounding
HRE-204 List 1A and List 2A April 7, 2000 11
HLU ALARM OUTPUT INTERFACE
When HLU-431 line units are installed in the HRE-204, the Normally Open (NO) and Common (COM) system
alarm relay contacts are bused together and made available on the Euro-style terminal block TB5. Figure 9 shows
the TB5 pin assignments.
Figure 9. System Alarm (TB5) Pin Assignments
FACILITY SIDE HDSL CONNECTIONS
The HDSL facility side ports are available through the FAC ports of the Euro-style terminal blocks. Figure 10
shows the TB1 (Slot 1) pin assignments, and Figure 11 shows the TB2 pin assignments (Slots 2, 3, and 4).
Figure 10. TB1 Pin Assignments (Slot 1)
Power and Grounding 150-204-111-01, Revision 01
12 April 7, 2000 HRE-204 List 1A and List 2A
Figure 11. TB2 Pin Assignments (Slots 2, 3, and 4)
Loop 1 connects to the Tip and Ring leads. Loop 2 connects to the Tip1 and Ring1 leads. To locate the appropriate
connector, see the pin assignment representations in “Slot Pin Assignments”on page 17.
If the Loop 1 and Loop 2 leads are reversed, a CHREV (Channels Reversed) message
appears in the ALARMS display field when viewing the HiGain Status screen field. This
condition does not affect system operation, but should be corrected to avoid any
confusion regarding the identities of the two HDSL loops.
150-204-111-01, Revision 01 Power and Grounding
HRE-204 List 1A and List 2A April 7, 2000 13
CPE DS1 CONNECTIONS
The following DS1 XMT and RCV interfaces are available:
•Euro-style terminals, CPE1 (J5) through CPE4 (J8), where XMT = Tip and Ring, RCV = Tip1 and Ring1
•RJ48 jacks, as shown in Figure 1 on page 2.
Figure 12 shows the pin assignments for the RJ48C jack.
Figure 12. RJ48C Pin Assignments (List 1A)
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