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1145 Direct Replacements

S1145R Power Unit

The S1145R is a direct replacement for the Lucent/AT&T 1145A, B1 and B2 ISDN power units. Features include 200 watts of output power, a low voltage battery disconnect and compatibility with the existing wall mounting plate and connection wiring.

The S1145R provides a nominal 48 volt DC output voltage at up to 4.2 amps with the ability to power up to 96 ISDN phones. Connectors are provided for power to an 1146 block and a backup battery pack. Backup batteries are connected in parallel to the load so there is no delay in switching to backup power when AC power is lost.

The S1145B is the companion battery pack for the S1145R power unit.

S1145R Power Unit

 

Ordering Information
MODEL # DESCRIPTION DIMENSIONS
(W"xD"xH")
S1145R
200 watt power unit, direct replacement for Lucent/ATT 1145 A, B1, B2
11.4 x 8.8 x 4.5


Technical Specifications
ELECTRICAL
  • Input Voltage: 120 VAC +10%/-15% (240 VAC Factory Option)
  • Input Current: 3 Amps AC maximum
  • Output Voltage: 48 Vdc nominal, 42.5 Vdc min - 55.2 Vdc max
  • Output Current: 4.2 Amps DC maximum
 
ENVIRONMENTAL
  • Temperature: -20° C to +40°C
  • Humidity: 95% non-condensing
 
LED INDICATORS
  • Green: On AC Power
  • Red: On Battery Power
 
CONNECTORS

Two Pin Battery Pack Connector:
               Pin 1 - (+V)              Pin 2 - (-V)

Eight Pin Power Connector
               Pin 1 - Unused         Pin 2 - Unused
               Pin 3 - (+V)              Pin 4 - (-V)
               Pin 5 - Unused         Pin 6 - Unused
               Pin 7 - Unused         Pin 8 - (-V)

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


    >  RELATED FILES

Online Powering Guide
A complete technical overview of ISDN premises powering.
S1145R Product Information Sheet
S1145 Installation and Operations Manual

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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