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Battery Packs

BP-8U Battery Pack

The BP-8U is an external battery pack, designed for use with the SEI DP and SEI PoweRack series of compact 48 Vdc telecom power supplies and the SEI DC-UPS series of 48Vdc critical power systems. The BP-8U may also be used with legacy Lucent/AT&T 1145 systems.

The BP-8U’s microprocessor-based controller monitors charge status and automatically performs a periodic battery test to guarantee the holdover capability of the pack. Additional features include a Manual Battery Test Switch and LED indicators for Battery Charge Status and the Battery Test Status.

The BP-8U contains four 12 volt, 8 Amp-hour sealed lead acid batteries connected in series to provide a nominal 48 V dc. The internal battery pack is replaceable. A panel-mounted fuse protects the output.

The BP-8U can be used to add additional backup time or replace dead batteries. Up to three BP-8Us can be connected in parallel for a total capacity of 24 amp hours.

The BP-8U is mountable either on a wall or on 19" racks. Mounting brackets for 23" or 25" racks may be ordered as options.


BP-8U Battery Pack

 

Ordering Information
MODEL # DESCRIPTION DIMENSIONS
(W"xD"xH")
BP-8U
8 amp hour external battery pack
19 x 5 x 6.25


Technical Specifications
ELECTRICAL
  • Nominal Output Voltage: 48 Vdc
  • Maximum Output Current: 6.25 A max.
  • Recommended Charge Voltage: 54.0-55.2 Vdc
  • Rated Capacity: 8 Amp-hours
 
ENVIRONMENTAL
  • Temperature: -20° C to +40°C
  • Humidity: 95% non-condensing
  • Optimum battery life will be achieved if the unit is operated at a temperature of 25° C.
 
LED INDICATORS

Battery Charge Status:

  • Constant Green – Fully Charged
  • Flashing Green – Charging

Battery Test Status:

  • Constant Green – Battery Good
  • Fast Flash Red – Wait, Then Test
  • Slow Flash Red – Replace Battery
USER INTERFACE
Manual Battery Test Switch – Push to Test

NOTE: The Manual Battery Test switch is disabled when the battery is charging. Also, to prevent unnecessary battery discharge, the Manual Battery Test is disabled for 5 minutes following a Battery Test. In both cases, the Wait, Then Test indication is displayed.

For order information or technical support call us at
800-765-4734
 or email us using our Contact Us form


    >  RELATED FILES

Online Powering Guide
A complete technical overview of ISDN premises powering.
BP-8U Product Information Sheet
BP-8U Installation and Operation Manual
BP-8U Battery Replacement Procedure

System Engineering International, Inc. • 5115 Pegasus Court • Suite Q • Frederick, MD 21704
Voice: (301) 694-9601 • Fax: (301) 694-9608 • Email: info@seipower.com

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