ADTRAN 1500 User Manual
Total Access® 1500
AC Power Supply and Battery Charger
Installation and Maintenance
CONTENTS
1. GENERAL ........................................................... 1
2. DESCRIPTION ................................................... 1
3. INSTALLATION ................................................ 3
4. SPECIFICATIONS .............................................. 3
5. MAINTENANCE ................................................ 3
6. WARRANTY AND CUSTOMER SERVICE .... 3
-56V ,
3.5A OUTPUT
Section 61180043L1-5A
Issue 1, July 2001
CLEI Code VAPUKHOC_ _
1180043L1
THIS UNIT MAY BE
POWERED BY 3
SOURCES.
DISCONNECT ALL
SOURCES BEFORE
SERVICING
FIGURES
Figure 1. Total Access 1500 PS/BC,
Front and Back ......................................... 1
Figure 2. AC Power Supply/Battery
Charger Layout ........................................ 3
TABLES
Table 1. LED Indication ......................................... 2
Table 2. Specifications ........................................... 3
1. GENERAL
This practice provides installation and maintenance
procedures for the ADTRAN Total Access 1500
Power Supply/Battery Charger. Figure 1 is an
illustration of the front and back panels of the PS/BC.
Revision History
This is the initial release of this document. Future
revisions will be explained in this section.
Features
The Total Access 1500 PS/BC, P/N 1180043L1,
features include the following:
• AC power for a fully loaded Total Access 1500
bank (96 FXS) while fully charging the Battery
Backup System within 48 hours.
• All mounting hardware included.
• Built-in Fuse.
• Multi-feature status LED.
• Modular connections.
• Positive ground.
• Uninterrupted power output if battery backup
connected.
• FCC and UL 1950 compliant.
AC ALARM
OUTPUT
GRN - OK
YEL - FAIL
RED - FAIL
OFF - FAIL
120 VAC/
6A 60HZ INPUT
CAUTION:
FOR CONTINUED PROTECTION AGAINST
RISK OF FIRE, REPLACE ONLY WITH THE
SAME TYPE AND RATING OF FUSE
BATAC
GRN - OK
YEL - DISHCARGING
RED - LOW
OFF - NOT CONNECTED
FUSE: 12A/125V
S
S
U
E
U
E
F
F
-48V ,
2A INPUT
+–+–
9902271
.
-48V ,
2A INPUT
Figure 1. Total Access PS/BC, Front
and Back
2. DESCRIPTION
The AC Power Supply/Battery Charger is part of the
Total Access 1500 AC Power Supply/Battery Backup
System (APS/BBS). The AC Power Supply/Battery
Charger performs AC to DC conversion, and when
used with the Battery Backup System, provides eight
hours of backup power for a fully loaded Total Access
1500 bank (96 FXS circuits) with 50 percent of the
circuits off hook. The PS/BC receives 115 Vac from a
standard wall socket and converts this to -56 Vdc
which is provided to the Total Access 1500 chassis.
The unit is designed to work in conjunction with two
ADTRAN battery backup systems, P/N 1175044L1,
61180043L1-5A Section 61180043L1-5, Issue 1 1
Trademarks: Any brand names and product names included in this document are
trademarks, registered trademarks, or trade names of their respective holders.
and two 23-inch rack mounting brackets P/N
C A U T I O N C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
1175048L2. This provides a complete rack mounted
battery backup solution for the Total Access 1500. In
this arrangement, the PS/BC maintains the batteries at
a peak charge of -56 V. If AC power is lost, the unit
automatically transfers power from the battery packs
without interrupting service. When AC power returns,
the unit switches back to AC power and recharges the
batteries to peak charge.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2), this device must accept any interference that
may cause undesired operation.
Changes or modifications not expressly approved by
ADTRAN could void the user’s authority to operate
this equipment.
Alarm and Battery Disconnect Relays
Two relays support Power Supply operation:
• Alarm relay
• Battery disconnect relay
can recover their full capacity under normal charging
conditions, even when they have been subjected to
extreme over-discharge.
Fuse
A 12-amp fuse on the back panel protects the unit
from over current. The fuse isolates the AC input from
the power supply in the event of a fault. The fuse is
replaced by twisting the black cap to the left and
pulling the fuse out. After the new fuse is inserted,
the cap is pushed back in and turned to the right.
Status LED
A single multi-feature LED on the front panel
provides AC operation or battery operation power
status. See Table 1 for indication descriptions.
Table 1. LED Indication
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Alarm Relay And Alarm Signal
The Alarm relay is provided for customer use. In
normal operation the contact alarm relay is open. If
an AC power failure occurs and the unit defaults to
the battery backup, the relay will close. The alarm
relay condition can be monitored externally using the
2-pin connection labeled “AC Alarm Output” on the
housing.
Battery Disconnect Relay
The battery disconnect relay disconnects the battery
pack from the system if the battery voltage falls below
-40 Vdc. This feature prevents damage to the
batteries. The batteries will be recharged when normal
AC voltage is restored and the relay will close when
the battery voltage exceeds -40 V.
Certain alarm features on the power supply are still
powered by the battery after the disconnect relay is
opened. These features slowly drain the battery. If it
is known that AC power will be unavailable for an
extended period (greater than a week), ADTRAN
recommends that the battery be disconnected from the
power supply to prevent over-discharge.
The batteries used in ADTRAN’s battery backup
system are designed to withstand occasional overdischarge. While it is not recommended, the batteries
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3. INSTALLATION
After unpacking the unit, inspect it for damage. If
damage is noted, file a claim with the carrier then
notify ADTRAN Customer Service.
The power supply is designed to mount to the side of
the Total Access Battery Backup System P/N
1175044L1. Each power supply is designed to
maintain two Battery Backup Systems. The rack
mounting brackets P/N 1175048L2 are designed to
hold two Battery Backup Systems and the Total
Access 1500 AC Power Supply. See Figure 2 for the
mounting configuration.
Grounding
The ground connector on the PS/BC provides an
additional ground reference (the third prong of the AC
plug is also grounded) and may be connected to
“ground bus” or “ground wire” in a customer
equipment room. 18 AWG or larger ground wire is
recommended.
2 Section 61180043L1-5, Issue 1 61180043L1-5A
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