ADTRAN BR1/10 PAU Instruction Manual

61150.078L2-5A 1
Section 61150078L2-5
Issue 1, October 1997
CLEI Code # D4CIJ8Y2_ _
BR1/10 PAU
BR1/10 POWER / ALARM UNIT
INSTALLATION AND MAINTENANCE
PRACTICES
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
1. GENERAL
This practice provides installation and maintenance
proceduresfortheADTRANBR1/10PowerAlarmUnit
(PAU). Figure 1 is an illustration of the BR1/10 PAU.
Features
The BR1/10 PAU, part number 1150078L2, includes
the following features:
• -48 VDC input converted to regulated -48 and
+5 VDC for the channel bank.
• Faceplate mounted 1-amp GMT-type fuse for
input -48 VDC.
• Provides alarm relay contact closure in the
event the 1-amp faceplate mounted fuse is
blown.
• Alarm Cut-Off (ACO) switch for silencing an
audible alarm.
• Bank Alarm LED for visual notification of a
bank alarm condition.
General Description
The BR1/10 PAU is a common module plug-in unit
specifically designed for use in the ADTRAN BR1/10.
Theunitfiltersandconverts-48VDCinputtoregulated
-48and+5VDCvoltagelevelsforusebyothercommon
equipment and channel units. The faceplate contains
a cricket-style, 1-amp GMT-type fuse holder, a
momentaryactionACOpushbutton,andaBankAlarm
Figure 1. BR1/10 PAU
Trademarks: Any brand names and product names included in this document are trademarks, registered trademarks, or trade names
of their respective holders.
PAU
1150078L2
BANK
ACO
1
A
M
P
LED. The 1150.078L2 is identical to the 1150.078L1,
except the L2 provides contact closure on a fuse
tripped condition.
Fault and Alarms
The -48 VDC input to the PAU is fused with a 1-amp
fuse which provides protection and isolation during a
fault condition. When the fuse is tripped, the PAU
outputs -48 VDC as -48 ALM to the backplane of the
BR1/10 chassis and provides alarm relay contact
closure on terminal strip JP15. In this condition, MJ is
shortedtoMJRandMJVisshortedtoMJVR. TheACO
push-button does not override in this condition.
The BANK ALARM LED is ON when the BR1/10 is in
bank alarm (Red, Yellow, or Blue). During an alarm
condition, and when the ACO push-button has been
activated,theBankAlarmLEDwill Flash toindicatean
Alarm Cutoff condition. If no bank alarms are present,
the LED is OFF during normal operation.
During an alarm condition (Red, Yellow or Blue), use
the ACO push-button to reset the Major and Major
Return(MJ/MJR) relay contactstoanopenstate. This
overrides an audible alarm or any alarm connected to
the contact during the remainder of the bank alarm
condition. This switch is operable only when an bank
alarm condition is present.
CONTENTS
1. GENERAL .................................................................1
2. INSTALLATION .........................................................2
3. MAINTENANCE ........................................................2
4. SPECIFICATIONS.....................................................2
5. WARRANTY AND CUSTOMER SERVICE ..............2
FIGURES
Figure 1. BR1/10 PAU ..................................................... 1
Figure 2. -48 ALM Pin on BR1/10 Backplane .................2
TABLES
Table A. BR1/10 PAU Specifications .............................. 2

2 Section 61150.078L2-5, Issue 1 61150.078L2-5A
Figure 2. -48 ALM Pin on BR1/10 Backplane
System Power Requirements
Faceplate
Environmental
Physical
Input: DC Voltage
Max Current
Fully Loaded
Commons Only
Dimension:
Weight:
Fuse:
Switch:
LED:
Operating Temperature:
Storage Temperature:
Relative Humidity:
-42 VDC to -56 VDC
-48 VDC nominal
1.0 A fused
0.200 A nominal
0.060 A
1-amp GMT-type
Momentary action ACO push-button
Bank Alarm Indicator
-40°C to +80°C
(-40°F to +176°F)
-40°C to +85°C
(-40°F to +185°F)
95% max., non-condensing
9 3/8" Long, 2 1/2" High, 7/8" Wide
3.2 ounces
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 section
4 ,Warranty and Customer Service ).
The BR1/10 PAU plugs directly into the common card
area in the position labeled PAU. The BR1/10 PAU is
mechanically keyed to prevent insertion into any slot
other than the designated PAU position. To install the
BR1/10 PAU, grasp the unit faceplate and firmly insert
it into thebackplaneconnectoruntiltheunitissecurely
seated.
Optioning
The BR1/10 PAU has no options or adjustments.
Connections
All input and output to the BR1/10 PAU are made
throughthebackplane. Noadditionalbackplanewiring
is necessary for normal operation.
3. MAINTENANCE
The BR1/10 PAU requires no routine maintenance to
operate properly.
Thefaceplatehasonereplaceablecricket-stylefuse. If
the fuse blows, a colored pin becomes visible from the
frontofthechannelbank,and-48VDCisappliedtothe
-48 ALM (JP15, pin 6) on the BR1/10 backplane. Two
alarm contact closures also occur, MJ and MJV short
to MJR and MJVR, respectively. These features allow
external alarm activation (see Figure 2). To remove a
fuse,graspitfirmlyandpullitfromtheholder. Toinsert
afuse, push it into theholderuntil it is seated securely.
Ifafuseisblownforanunknownreason,determinethe
cause by using the following procedure:
1. Remove the other common equipment and
channel cards.
2. Replace the fuse with a 1-amp GMT fuse.
3. If the fuse blows again, the chassis or BR1/10
PAU is at fault. Contact ADTRAN Technical
Support for assistance.
4. If the fuse does not blow, insert each card
beginning with the common equipment. If the
fuse blows following the replacement of any
card, that card or card slot is at fault. Replace
the faulty unit with a spare.
ADTRAN does not recommend that repairs be
performedinthefield. Repairservicesareobtainedby
returning the defective unit to ADTRAN Customer
Service.
4. SPECIFICATIONS
Table A gives the specifications for the BR1/10 PAU.
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 Equipment Warranty, Repair, and Return
Policy and Procedure).
Return Material Authorization (RMA) is required prior
to returning equipment to ADTRAN.
For service, RMA requests, or further information,
contact one of the following numbers:
ADTRAN Technical Support
[phone]
Standardsupport hours,Monday-Friday, 7am-7pmCST
Emergency Support:, 7 days/week, 24 hours/day
ADTRAN Sales
[phone]
ADTRAN Repair/RMA
[phone]
Repair and Return Address
ADTRAN, Inc.
Customer Service Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
Table A. BR1/10 PAU Specifications
JP15
-48ALM
116
MJVR
MJV
MJR
MJ