ADTRAN HR4 Instruction Manual

161242008L1-5, Issue 261242008L1-5B
1. GENERAL
This document provides installation and maintenance
procedures for the ADTRAN HR4 List 1 HDSL
remote shelf. Figure 1 is a photograph of the unit.
Revision History
This is the second release of this document. It has
been revised to include mounting clearances, HTU-C
information, and optional equipment.
Features
The ADTRAN HR4 Remote Shelf, part number
1242008L1, features include the following:
• Connectorized network interface
• Removable RJ-48C and RJ-48X jacks for
customer interface
• 4-unit capacity
• Wall-mounted
• Lockable cover to restrict access to units
• Barrier strip for power connections
Description
The ADTRAN HR4 shelf is designed for use in
applications where it is beneficial to replace a series of
T1 repeaters with HDSL transceiver technology. The
shelf is designed to accept up to four ADTRAN
HTU-R units. HTU-R plug-ins can be loaded into
slots 1 through 4. Network connections are made
using a 50-pin amphenol connector. Customer
connections are made through RJ-48 connectors.
The ADTRAN HR4 measures 7.60 inches wide (6.25
inches minus the mounting ears), 8.25 inches front-to-
back, and 11.6 inches high. The unit weighs 3
pounds, 14 ounces. No clearance is required on the
top or the sides. Two inches must be allowed below
the unit for cabling.
Each shelf is wired and tested and contains provisions
for network connections, customer connection, and
power connections (optional for HDSL applications).
Section 61242008L1-5B
Issue 2, January 2000
CLEI Code # T1MFFU56_ _
HR4 Remote Shelf
Installation and Maintenance
Figure 1. HR4 Remote Shelf
CONTENTS
1. GENERAL ..............................................................1
2. INSTALLATION ....................................................2
3. INSTALLATION ....................................................5
4. MAINTENANCE ....................................................5
5. SPECIFICATIONS .................................................5
6. WARRANTY AND CUSTOMER SERVICE........5
FIGURES
Figure 1. HR4 Remote Shelf ......................................1
Figure 2. P5 Backplane Barrier Strip Connections ....2
Figurre 3. HR4 Connector Locations ..........................3
Figure 4. HR4 Backplane and Connector Detail........3
Figure 5. Customer (RJ-48C/RJ-48X) Connector Pin
Assignments ...............................................4
Figure 6. Network Interface (P6) Connector Pin
Assignments ...............................................4
Figure 7. Backplane Slot Pin Assignments ................4
Figure 8. HTU-C Application ....................................5
TABLES
Table 1. Specifications ...............................................5
Trademarks:Any brandnamesandproductnames includedin thisdocument are
trademarks, registered trademarks, or trade names of their respective holders.

261242008L1-5, Issue 2 61242008L1-5B
2. INSTALLATION
After unpacking the unit, immediately inspect if for
shipping damage. If damage is discovered, file a
claim with the carrier, then contact ADTRAN
Customer Service (see Warranty and Customer
Service).
Before installing the HR4, remove all plug-in cards
that may have been shipped in the unit.
NOTE
Thesearestatic-sensitiveunits andshould be
handledusingtheappropriateESDprotective
measures.
To remove the cards, grasp the metal edge at the left
side of the card and pull outward. This will unseat the
unit from its connector. Temporarily place the unit in
a protected area.
The unit mounting flanges have two sets of mounting
holes. Position the unit and align the mounting holes
with the wall screws attached, using the mounting
template. The template attaches to the wall by a tape
strip located across the top of the template. Remove
the template after use.
No clearance is required on the top or the sides of the
unit. Two inches must be allowed below the unit for
cabling.
After the screws have been secured, place the unit
over the screw heads and pull the base gently
downward to position the screw heads on the narrow
slot of the keyhole. If necessary, the screws may be
tightened to further secure the unit.
In the initial installation, it is not necessary to equip
all the slot locations with plug-in cards. The unit can
be equipped with up to four ADTRAN HTU-R
transceivers. These units should be loaded into slots
one through four. The DS-1 and HDSL loop wiring is
made on the corresponding backplane connector.
32
1
Pin 1 Frame Ground
Pin 2 -48V Return
Pin 3 -48V Supply
Figure 2. P5 Backplane Barrier Strip
Connections
Backplane Connections
Connection Locations
The shelf has a backplane containing four 56-pin
connectors. These connectors are interconnected with
printed circuit copper traces. Power and ground
connections are available on a three-position barrier
strip (P5) located on the backplane (see Figure 2).
P5 is located in the connector area upper right corner
(see Figure 3). These connections are provided to
allow locally powered T400 plug-ins to be used in the
same shelf as the span powered HTU-Rs. If the shelf
is dedicated for span-powered HDSL use, the power
connections are not required.
Network connections are made using the 50-pin
amphenol connector labeled P6, NETWORK
INTERFACE.
Customer interfaces are through four RJ-48C or RJ-
48X jacks corresponding to slots one through four.
The unit ships with RJ-48C jacks installed and four
loose RJ-48X connectors. The difference in these
connectors is that the RJ-48X jacks bridge the
transmit signal upon disconnection to customer
premises equipment, thus looping back the signal
toward the network. Figure 4 shows the pins used on
the RJ-48C connectors, as well as the color-coding of
the four leads.
If replacing the RJ-48C jacks with the RJ-48X jacks,
unscrew the metal retaining clip and the four screws
securing the leads to the terminal barrier strip.
Remove the RJ-48C jack and replace it with an RJ-
48X jack. Screw down the metal retaining clip and
four leads, observing the pin number or color
convention, as shown in Figure 4.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.

361242008L1-5, Issue 261242008L1-5B
FRM
GND
1
-48
RET
2-48V
3
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
SLOT 3
SLOT 4SLOT 2
SLOT 1
JP1 JP2
P5
26 1
50 25
NETWORK
INTERFACE
P6 Line
Pin
Color
Color
Pin
Line
1 2 3 4
HR4
Bottom cover
(stowed position)
Power and ground
connections
Customer ports
3 and 4
Customer ports
1 and 2
Barrier strip
Connector
Figurre 3. HR4 Connector Locations
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
R1(1)-B
T1(2)-O
R(4)-R
T(5)-G
SLOT 3
SLOT 4SLOT 2
SLOT 1
JP1 JP2
P5
26 1
50 25
NETWORK
INTERFACE
P6 Line
Pin
Color
Color
Pin
Line
FRM
GND
1
-48
RET
2-48V
3
Figurre 4. HR4 Backplane and Connector Detail

461242008L1-5, Issue 2 61242008L1-5B
Figure 5 shows the customer connector pin
assignments and Figure 6 shows the network
interfaces (HDSL loops) P6 connector pin
assignments.
Pin assignments for the backplane HTU-R slots are
shown in Figure 7.
Frame Ground Connection
Attach frame ground to pin 1 of P5 (see Figure 2).
Power Connections
In applications using locally powered T400 plug-in
cards, local power can be supplied to these cards using
the barrier strip labeled P5. For applications using
only ADTRAN line-powered HTU-R cards, -48 V
connections are not required. However, the frame
connection (pin 1 of P5) must be attached to ensure
proper grounding and unit operation (see Figure 2).
CAUTION
Ensure all power connections are firmly
secured.
Customer Connections
Figure 5 gives the pin assignments and lead colors of
the four RJ-48 jacks. These connectors provide all
customer-side connections. Alternately, the signals
may be cabled directly to the terminal barrier strips.
Network Connections
Figure 6 provides the pin assignments of P6 (labeled
NETWORK INTERFACE). This 50-pin CHAMP
connector provides all network-side connections. The
1
2
3
4
5
6
7
8
R1
T1
N/C
R
T
N/C
N/C
N/C
Blue
Orange
Red
Green
Figure 5. Customer (RJ-48C/RJ-48X) Connector
Pin Assignments
Figure 6. Network Interface (P6) Connector Pin
Assignments
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
P6
T1, R1
HDSL LOOP 1
TO/FROM
NETWORK
HDSL R SLOT 1
HDSL R SLOT 2
HDSL R SLOT 3
HDSL R SLOT 4
T, R
HDSL LOOP 2
TO/FROM
NETWORK
HDSL T 1 SLOT 1
HDSL T 1 SLOT 2
HDSL T 1 SLOT 3
HDSL T 1 SLOT 4
HDSL T SLOT 1
HDSL T SLOT 2
HDSL T SLOT 3
HDSL T SLOT 4
}
}
HDSL R1 SLOT 1
HDSL R1 SLOT 2
HDSL R1 SLOT 3
HDSL R1 SLOT 4
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
}
}
}
}
Figure 7. Backplane Slot Pin Assignments
5
7
11
13
15
17
27
35
41
47
49
55
T1-DS1 OUTPUT TO CUSTOMER
T1- HDSL LOOP 1
FRAME GROUND
R1-HDSL LOOP 1
R1-DS1 OUTPUT TO CUSTOMER
-48V RETURN
FRAME GROUND
-48 VOLTS
T-HDSL LOOP 2
R-HDSL LOOP 2
R-DS1 INPUT FROM CUSTOMER
T-DS1 INPUT FROM CUSTOMER

561242008L1-5, Issue 261242008L1-5B
pin assignments are designed to be compatible with
converter blocks that provide multiple RJ-48H style
individual interface connections. Alternately, the
signals may be cabled to a punch-down block for
making individual circuit connections.
WARNING
IfanADTRANT200HTU-C(p/n1245006L6)
is used in the HR4 Shelf, the network
connections are made on the modular jacks,
and the customer connections are made on
the 50-pin CHAMP connector (see Figure 8).
Incorrect connections could result in injury
from high voltage present at the Network
interface.
3. INSTALLATION
The HR4 has four available slots for plug-in cards.
HTU-R units can occupy any available slot. Other
locally powered T400 plug-ins can be deployed in the
HR4. This requires use of an external -48 V supply.
4. MAINTENANCE
The ADTRAN HR4 requires no routine maintenance
to operate properly. Tests and maintenance for the
individual plug-ins should be connected in accordance
with the recommendations and procedures prescribed
by the manufacturer of specific plug-in.
ADTRAN recommends that repairs on the shelf not be
performed in the field. Repair services may be
obtained by returning damaged units to ADTRAN
(see Warranty and Customer Service).
5. SPECIFICATIONS
Specifications for the HR4 are listed in Table 1.
HR4
T-200
HTU-C
DS1
NETWORK
RJ-48
MODULAR
JACKS
2BIQ
CUSTOMER 140V
50-PIN
CHAMP
CONNECTOR
Figure 8. HTU-C Application
Optional Equipment
An optional power supply can be obtained for use
with HTU-C applications.
The 1353DSK48V04 is a –48VDC, 1A power supply.
It is UL listed and comes with a wall-mount bracket.
6. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within 10
years from the date of shipment if it does not meet its
published specifications or fails while in service (see
ADTRAN Carrier Network Equipment Warranty,
Repair, and Return Policy and Procedure, document
60000087-10A).
Contact Customer and Product Service (CAPS) prior
to returning equipment to ADTRAN.
For service, CAPS requests, or further information,
contact one of the following numbers:
Part Number
1242008L1
ADTRAN Sales
Pricing and Availability [phone]
ADTRAN Technical Support
Presales Applications/Post-sale Technical Assistance
[phone]
Standard hours: Monday-Friday, 7 a.m.-7 p.m. CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Repair/CAPS
Return for repair/upgrade [phone]
Repair and Return Address
ADTRAN, Inc.
Customer & Product Service (CAPS)
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
Table 1. Specifications
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