User's Manual Part 4

DSPbR Series – User’s Manual
Document Number 00000.B Page 75/75
Q: Once the repeater has been connected and AC or DC power is supplied to the unit how long will it take to
boot-up and initiate the RFBE’s (RF Back End RF power amplifiers)
A: Approximately 45 seconds
DC Power Supply
Connecting the DSPbR Repeater to a DC power source
Q: How should the DSPbR be connected to a DC power source?
A: Via the 85Amp rated Phoenix HDFK 16A connector block situated at the rear of the DSPbR sub rack frame
underneath the Ref Gen + Aux module using 6AWG gauge +ve / -ve identifiable cable for a 24VDC source and
10AWG cable for a 48VDC source.
Q: What is the estimated current draw using a primary 48V DC supply with all downlink RFBE’s set to +45dBm
and uplink +40dBm?
A: 2 Channel Bi-directional DSPbR – 9 Amps, 4 Channel Bi-directional DSPbR – 15 Amps, 6 Channel Bi-
directional DSPbR – 23 Amps, 8 Channel Bi-directional DSPbR – 30 Amps
Earthing
Q: What earthing facility is provided on the DSPbR?
A: A dedicated M6 earthing stud is provided on the bottom right hand side looking at the DSPbR from the rear.
We recommend the use of a 16mm² green and yellow sheathed copper cable terminated with a crimped 16mm²
/ M6 hole cable crimp lug.
12. Appendix
Appendix A – DSPbR Slot Architecture – Typical Configurations