ADTRAN BR1/10 Maintenance and service guide

1Section 61150219L1-5, Issue 161150219L1-5A
Section 61150219L1-5
Issue 1, June 1998
CLEI Code #D4M1CC0A_ _
BR1/10 WALL MOUNT CHASSIS
INSTALLATION/MAINTENANCE
PRACTICES
1. GENERAL
This practice provides installation and maintenance
procedures for the ADTRAN®BR1/10 Wall Mount
Chassis. Figure 1 is an illustration of the BR1/10
Wall Mount Chassis.
Features
The BR1/10 Wall Mount Chassis, part number
1150219L1, features include:
• Compact design mounts easily to indoor walls
• Single T1 provides 10 ISDN Basic Rate Interfaces
• Operates with standard BR1/10 commons: BCU,
LIU, and PAU
• May be line powered using the optional HDSL
LIU (H-LIU)
Trademarks: Any brand names and product names included in this document are trademarks, registered trademarks, or trade names of
their respective holders.
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
• NEBS Level III compliant
Description
The ADTRAN BR1/10 Wall Mount Chassis is
designed for extending Basic Rate ISDN services to a
customer's premise or equipment closet. The chassis
terminates a single T1 and provides mounting for one
set of BR1/10 commons (BCU, LIU and PAU) and 10
U-BR1TE channel units. The compact, fold-down
design of the unit allows quick-and-easy installation
to most indoor walls. The assembly includes two
components: an 11 inch BR1/10 chassis and a wall
mounting bracket.
The BR1/10 Wall Mount Chassis backplane provides
(1) 50-pin male amphenol connector, (13) 36-pin card
Figure 1. BR1/10 Wall Mount Chassis
CONTENTS
1. GENERAL.....................................................................1
2. INSTALLATION ..........................................................2
3. MAINTENANCE..........................................................6
4. SPECIFICATIONS .......................................................6
5. WARRANTY AND CUSTOMER SERVICE..............6
FIGURES
Figure 1. BR1/10 Wall Mount Chassis............................1
Figure 2. BR/10 Mounting ..............................................2
Figure 3. BR1/10 Backplane............................................4
Figure 4. Telco Connector (JP14) Pinout ........................4
Figure 5. JP15 Connections .............................................4
Figure 6. DSX-1 Connections on JP15............................5
Figure 7. Office Timing Connections on JP15 ................5
Figure 8. Local Composite Clock Wiring
for a Single Chassis...........................................5
Figure 9. Office Alarm Connections on JP15..................5
Figure 10. Power Connections on JP16 .............................6
TABLES
Table 1. JP15, JP16, JP17,
and JP18 Descriptions .........................................3
Table 2. Alarm Notifications .............................................6
Table 3. Specifications .......................................................7
Table 4. Part Number Reference........................................7

2 Section 61150219L1-5, Issue 1 61150219L1-5A
3. Install lag bolts leaving a ˘ inch space between the
plywood and the head of the bolts.
4. Place assembly on the bolts.
5. Tighten down the bolts using the wrench.
Connections
Before making the electrical connections, fold the
chassis down to expose the backplane by following
these steps:
1. Lock the right knob, located on the side of the
assembly, by pulling the knob out and rotating
counter-clockwise until it has locked open. See
Figure 2 for an illustration.
2. With the right knob locked open, pull the left
knob outwards and rotate the chassis to the down
position. Release the knob allowing the chassis to
lock into place.
3. Using a small phillips head screwdriver, remove
the four (4) back panel screws and remove the back
panel.
4. Make appropriate connections outlined in the
following sections.
5. After the electrical connections have been made,
route all wiring through the semi-circle opening in the
back panel and secure with four (4) screws.
6. Route cable ties (provided) through the cable tie
holes on the right side of the assembly (see Figure 2)
and loosely secure cables.
edge connectors, (1) three-terminal barrier strip, (1)
two-terminal barrier strip, and (1) female DB-9
connector. The 50-pin male amphenol connector
interfaces with the T/R and T1/R1 connections for
each of the 10 channel slots. The (13) 36-pin card
edge connectors are used for BR1/10 common
equipment and channel units. The three-position
terminal strip, labeled JP16, supplies power
connections. The two-terminal barrier strip, labeled
JP18, is for future enhancements.
2. INSTALLATION
After unpacking the unit, immediately inspect it for
possible shipping damage. If damage is discovered,
immediately file a claim with the carrier and then
contact ADTRAN Customer Service (see Warranty
and Customer Service).
Tools Needed
The ADTRAN BR1/10 Wall Mount Chassis includes
a mounting template for installation on a 3/4" thick
plywood surface which is secured to an existing wall.
The unit is intended only for indoor use. The
following is a list of tools/hardware needed for
installation:
• Mounting hardware (4-1/4" x minimum 1" lag
bolts)
• Drill and drill bits
• Wrench
• Phillips head screwdrivers (small and medium)
• Wire-wrap gun (T1 connection)
• 25-pair male amphenol cable (customer connec-
tion)
• Selected punch down block
Existing wall construction should be
capable of supporting wall mount cabinet
and associated equipment.
Mounting the Assembly
Before beginning the installation, locate the mounting
template found on the last page of this practice and
complete the following steps:
1. Place mounting template on plywood in the
desired location of the assembly.
2. Drill four pilot holes on plywood as detailed on
the mounting template. Figure 2. BR/10 Mounting
To Lock:
Pull Knob & Turn
Counter-Clockwise
1150219L1
Cable Tie
Hole

3Section 61150219L1-5, Issue 161150219L1-5A
7. Return chassis to the upright position by pulling
the left knob outwards and rotating the chassis
upwards. To release the right knob, turn clockwise.
All permanent connections to the BR1/10 Wall Mount
Chassis are made on the backplane. Table 1 describes
the pin designations for JP15, JP16, JP17, and JP18.
Figure 3 shows the chassis backplane and connectors.
JP15, JP16, JP17, and JP18 read from left to
right with Pin 1 being the first pin on the left.
Telco Connector
One 50-pin male amphenol connector, JP14, is
provided for the interconnect wiring of the ten
channel positions on the BR1/10 backplane. This
connector is usually terminated with a punch-down
block for premises wiring, or connected directly to a
cross-connect or main distribution frame. Figure 4
details the pin-out of the connector.
Leads T1 and R1 are not used in applications
requiring the BR1/10 U-BR1TE. The T1 and
R1 leads will be used in future applications.
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1
2
3
4
5
6
7
8
9
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11
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31
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Table 1. JP15, JP16, JP17, and JP18 Descriptions

4 Section 61150219L1-5, Issue 1 61150219L1-5A
DSX-1 Termination, Office Timing, Office Alarms,
and the Shelf Alarm are connected via JP15. Figure 5
gives a detailed look at each of the connections of
JP15.
DSX-1 and DS1
DSX-1 and DS1 connections are made via JP15, pins
1 through 5 (see Figure 6). The Line Interface Unit
(LIU) List 1, part number 1150079L1, provides
termination for a DSX-1 signal only. The LIU List 2,
part number 1150097L2, provides termination for
either DSX-1 or DS1 signal. Line build-out and
equalization settings are made on the Bank Controller
Unit (BCU).
Office Timing Supply
The Office Timing input/output pins are located on
JP15, pins 11 through 16 (see Figure 7). The
incoming Building Integrated Timing Supply (BITS)
connects to pins LX (in) and LY (in); EU2 is used to
TO DSX-1
TO DF
X-CONN
TO DANTEL FROM
BITS CLOCK
MULTIPLE
PPPPP
P7 (RED)24 BH
EU2 LY(OUT) LX(OUT) EU1 LY(IN) LX(IN) MJVR MJV MJR MJ -48VALM SG T-O R-O T1-I R1-I
22 BF
1
JP15
BR1/10
BACKPLANE
JP14
50 PIN
AMP
PLUG
261
272
283
294
305
316
327
338
349
3510
3611
3712
3813
3914
4015
4116
4217
4318
4419
4520
4621
4722
4823
4924
5025
CHANNEL 1
CHANNEL 1
CHANNEL 1
CHANNEL 1
R
T
CHANNEL 2
CHANNEL 2
CHANNEL 2
CHANNEL 2
R
T
R1
T1
R1
T1
CHANNEL 3
CHANNEL 3
CHANNEL 3
CHANNEL 3
R
T
R1
T1
CHANNEL 4
CHANNEL 4
CHANNEL 4
CHANNEL 4
R
T
R1
T1
CHANNEL 5
CHANNEL 5
CHANNEL 5
CHANNEL 5 R
T
R1
T1
CHANNEL 6
CHANNEL 6
CHANNEL 6
CHANNEL 6
R
T
R1
T1
CHANNEL 7
CHANNEL 7
CHANNEL 7
CHANNEL 7 R
T
R1
T1
CHANNEL 8
CHANNEL 8
CHANNEL 8
CHANNEL 8
R
T
R1
T1
CHANNEL 9
CHANNEL 9
CHANNEL 9
CHANNEL 9 R
T
R1
T1
CHANNEL 10
CHANNEL 10
CHANNEL 10
CHANNEL 10
R
T
R1
T1
NC
NC
NC
NC
NC
NC
NC
NC
NC
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
50 PIN
AMP
RECEPTACLE
CROSS CONNECT AS REQUIRED
+ --
J6 J5 J4
R18
1
2
3
B A
REMOVE J4, J5
FOR RS-232
19
JP10
36
19
JP9
18 36
19
JP8
18 36
19
JP7
18 36
19
JP6
18 36
19
JP5
18 36
RS-485
19
JP4
18 36
LOCCK
4 5
19
JP3
18 36
19
JP2
18 36
19
JP1
18 36 18
R1-I
T1-I
R-0
T-0
SG
-48ALM
MJ
MJR
MJV
MJVR
LX(IN)
LY(IN)
EUI
LX(OUT)
LY(OUT)
EU2
16
1
JP15 PIN NAME
1
R2
R4
R6 LIU
R8
R10
R12
R14
R16
R17
18 36
36
19 19 19
JP13
PAU
18 36
1
18
1
JP17
+ --
50
25
J6 J5 J4
R18
1
2
3
B A
26
1
JP14
JP16
-481-
1
1
JP15
C1
+
U1
OUT
CLK
1
IN
TERM
JP11
FG-
GND
REMOVE J4, J5
FOR RS-232
JP12
BCU
JP18
R R-RTN
JP18
JP14
JP17 JP15
JP16 P1
Figure 3. BR1/10 Backplane
Figure 4. Telco Connector (JP14) Pinout
Figure 5. JP15 Connections

5Section 61150219L1-5, Issue 161150219L1-5A
shield the two inputs. Figure 8 shows timing
connections for a BR1/10 Wall Mount Chassis.
TO DSX-1
PP
1
SG T-O R-O T1-I R1-I
22 BF
JP15
Office Alarms
The backplane connections for the alarm relays are
found on JP15, pins 7 through 10, and are labeled MJ,
MJR, MJV, and MJVR (see Figure 9).
The alarm relay contacts are normally open when the
BR1/10 is functioning properly, and no alarms are
received from the T1 carrier. The alarm relay
contacts will close in the event of a local alarm
condition or the receipt of an alarm from a T1 carrier.
In a carrier alarm condition such as red, yellow, or
blue (Unframed All 1's), several alarm relay contacts
located in the BR1/10 close. Carrier alarm conditions
cause the BR1/10 to go into trunk processing and the
following events will occur:
1. MJ will be directly shorted to MJR
2. MJV will be directly shorted to MJVR
Contacts MJ/MJR can be manually overridden during
an Alarm Condition. The ACO pushbutton on the
BR1/10 PAU faceplate will open the contacts during a
bank alarm condition providing a means to control an
external Audible Alarm. No other alarm contacts are
affected by the ACO pushbutton.
The BR1/10 PAU List 2, P/N 1150078L2, provides
alarm relay contact closure in the event the –48V
PAU faceplate fuse is tripped. In this alarm
condition, the relay contacts will close in the same
manner as if the BR1/10 was in a Carrier alarm
condition, but depressing the ACO pushbutton will
not cancel the audible alarm.
Relay contact closures are a function of the PAU
common unit only, not the chassis. A summarization
of alarm notification is found in Table 2.
TO DF
X-CONN
TO DANTEL
P
24 BH
MJVR MJV MJR MJ -48VALM
Part of JP15
Figure 6. DSX-1 Connections on JP15
Figure 8. Local Composite Clock Wiring for a
Single Chassis
Figure 7. Office Timing Connections on JP15
* This configuration was tested using a
TELECOM SOLUTIONS, DIGITAL
DISTRIBUTOR, DCD 523.
Note 1: Chassis is terminated In (U1 is strapped for In).
Note 2: The ground pin (pin 13 and 16 of JP15) is an optional
connection for shielded cables; it is not required.
1
JP15
U1
OUT
CLK
1
IN
TERM
Chassis 1
*From
BITS
FROM
BITS CLOCK
MULTIPLE
PP
P7 (RED)
EU2 LY(OUT) LX(OUT) EU1 LY(IN) LX(IN)
(16) Part of JP15
Figure 9. Office Alarm Connections on JP15

6 Section 61150219L1-5, Issue 1 61150219L1-5A
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Shelf Alarm
The –48V alarm (–48ALM) located on JP15, pin 6,
provides a –48VDC signal when the PAU fuse is
tripped.
Power Connections
The BR1/10 Wall Mount Chassis provides a three-
position terminal strip, JP16, on the backplane for
power connections . Ring lug terminations are
recommended for connecting to JP16. When using
the ADTRAN Wall Mount Power Supply, part
number 1150101L1, insert the –48V wire (BLACK)
into terminal 3 (–48I) of JP16. Insert the return wire
(RED) into terminal 2 (–48R). Insert the frame
ground wire (GREEN) into terminal 1 (FG). See
Figure 10.
Since the frame ground and the –48V return
are isolated in the bank, these grounds
should be connected externally to a central
ground.
OPTIONS
RS-485 Connection
The RS-485 link connection is made on JP17, pins 1
through 3, located on the bottom of the backplane.
This connection is provided for future applications.
LOC CK
When BITS is not available, JP17, pins 4 and 5,
provide a phase-locked-loop local composite clock
output. While not intended to provide multiple
outputs, this output can be used to provide a clock
source for a single channel bank when an external
output is required. This option can be used in a
tandem configuration that does not have a centralized
composite clock source.
When necessary wiring and connections are
completed, replace the clear plastic cover on the
backplane. The common equipment and channel units
may then be configured and installed. Refer to the
appropriate ADTRAN Practices for information
specific to each plug-in card.
3. MAINTENANCE
The BR1/10 Chassis requires no routine maintenance
to operate properly. Test and maintenance for the
specific plug-ins should be conducted in accordance
with the recommendations and procedures prescribed
in associated Installation and Maintenance Practices.
ADTRAN does not recommend that repairs be
performed in the field. Repair services are obtained
by returning the defective unit to ADTRAN's
Customer Service.
4. SPECIFICATIONS
Refer to Table 3 for unit specifications. Table 4
contains part number references.
5. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within ten
years from the date of shipment if it does not meet its
published specifications or fails while in service (see
ADTRAN Telco Network Equipment Warranty, Repair,
and Return Policy and Procedure, document
60000087-10A).
Contact Customer and Product Services (CAPS) prior
to returning equipment to ADTRAN.
Figure 10. Power Connections on JP16
Table 2. Alarm Notifications
JP16
1
GREEN
FG
RED
GRD
BLACK
–48V
POWER
SUPPLY

7Section 61150219L1-5, Issue 161150219L1-5A
For service, CAPS requests, or further information,
contact one of the following numbers:
ADTRAN Technical Support
[phone]
Standard hours: Monday-Friday, 7 am-7 pm CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Sales
[phone]
Table 3. Specifications
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Table 4. Part Number Reference
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ADTRAN Repair/CAPS
[phone]
Repair and Return Address
ADTRAN, Inc.
Customer & Product Services (CAPS) Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807

8 Section 61150219L1-5, Issue 1 61150219L1-5A
2 13/16"
BR1/10 WALL MOUNT
MOUNTINGTEMPLATE 61150219L1-5
Issue 1, May 1998
10 "
Drill Holes
éThis Side Up é