User Manual

Appendix A l
Power specifications
A-2 910136 Rev01.00 Standard July 2007
Power specifications
Table A-2 describes the ipBTS power requirements.
Input power interfaces
Table A-3 shows the supported input power connections.
Ratings UL UL 1950 (UL60950), UL94.V-1, UL94.VW-1
Altitude Maximum 6,000 feet (1,800 meters). At altitudes between 6,000
feet (1,829 m) and 12,000 feet (3,658 m), the
specified upper limit for operational temperature
(+40 degrees C) is reduced by 2 degrees C every
1,000 feet.
Table A-1. Physical and environmental specifications (continued)
Specification Description
Table A-2. Power specifications
Specification Description
Nominal DC Input Voltage -48 VDC
DC Input Operating Range -40 VDC to -57 VDC
Typical Input Current at -48 VDC 3A
Maximum Input Current at -48 VDC 5A
Table A-3. Input power interfaces
Terminal Function
-48VDC-A Input Power, -48VDC.
Input Power Feed A
-48RTN-A Input Power, -48VDC Return.
Input Power Feed A
-48VDC-B Input Power, -48VDC.
Input Power Feed B
-48RTN-B Input Power, -48VDC Return.
Input Power Feed B