Telephone Systems Efficiency Co. Inc.

   

The SEI DP700 Bulk Power Supply

The DP700 is a bulk powering system that provides the necessary 48 volt DC current to power up to 144 NT1's and 288 multipoint ISDN phones along with battery backup. Output distribution is provided by an application specific distribution module on the side of the unit (50-pin amphenol and 6-pin modular connectors are standard) which incorporates overcurrent protection via thermal fusing. During normal operation the telecommunication grade rectifier/charger provides power to the load while maintaining the batteries in a fully charged state. During extended periods of utility outage the batteries are protected from over-discharge by the built-in low voltage detector and disconnect circuit. Remote monitoring is provided by a contact closure that can be interfaced to a remote alarm unit.

All DP series units are mountable either on a wall or on 19" racks. Mounting brackets for 23" or 25" racks may be ordered as options (specify 23RM or 25RM after the model number).

Ordering Information

Model # NT1's Multipoint
Phones		 Battery
Reserve		 Dimensions
(W" x D" x H")
DP700-72-0 72 144 None 19 x 5 x 20
DP700B-72-8 72 144 1 hour 19 x 5 x 20
DP700B-72-16 72 144 2 hours 19 x 5 x 20 plus 19 x 5 x 7 (battery pack)
DP700B-72-24 72 144 4 hours 19 x 5 x 20 plus plus battery tray/cabinet
DP700B-72-65 72 144 8 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700-96-0 96 192 None 19 x 5 x 20
DP700B-96-16 96 192 1 hour 19 x 5 x 20 plus 19 x 5 x 7 (battery pack)
DP700B-96-24 96 192 2 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-96-32 96 192 4 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-96-90 96 192 8 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700-120-0 120 240 None 19 x 5 x 20
DP700B-120-16 120 240 1 hour 19 x 5 x 20 plus 19 x 5 x 7 (battery pack)
DP700B-120-24 120 240 2 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-120-50 120 240 4 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-120-100 120 240 8 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700-144-0 144 288 None 19 x 5 x 20
DP700B-144-16 144 288 1 hour 19 x 5 x 20 plus 19 x 5 x 7 (battery pack)
DP700B-144-32 144 288 2 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-144-65 144 288 4 hours 19 x 5 x 20 plus variable battery tray/cabinet
DP700B-144-130 144 288 8 hours 19 x 5 x 20 plus variable battery tray/cabinet

Options
RA Remote alarm unit 2.5 x 4 x 1

Technical Specifications

Electrical Environmental
Universal Input (90-265 VAC)
Frequency 47-440 Hz
Output Voltage 42-56 VDC		 Operating 0 deg C to +50 deg C
Storage -55 deg C to +85 deg C
Humidity 95% non-condensing

Optimum battery life will be achieved if the unit is operated at a temperature of 25 deg C.
Standards
UL 1012


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