SEI Telephony Products : ISDN Premises Power : Battery Packs : BP-8U Battery Pack

>	NT1's
	• P230 • B300
>	PoweRack SERIES
	• PR300e • PR230e • PR96e

>	DP SERIES
	• DP140e • DP240e • DP700e

>	1145 REPLACEMENTS
	• S1145B Battery Pack • S1145R Power Unit

>	BATTERY PACKS
	• BP-8U • High Capacity Batteries • Battery Replacement Program

>	STAND ALONE
	• DP20B • DP20B-E • 1215B

>	ISDN DISTR. BAYS
	• PDP30 • DM500

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. 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 contact us at
>> 800-765-4734


>	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