User's Manual Part 2

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DSPbR Series – User’s Manual

Document Number 00000.B Page 31/75

3.4.10 TLM - Through Line Module

Where external combining is required, which would typically be in the output channels of the downlink, and

sufficient band pass filtering is provided within an optional external combiner, then a TLM can be bolted to the

output of the RFBE instead of the BPFM. The form dimensions and connector arrangement of the TLM is the

same as the BPFM. It is very important to provide band pass filtering in the external combiner equivalent or

better than the filtering provided by the BPFM in order to maintain the required frequency spectral purity.

3.5 Band and Channel Configurations

The DSPbR architecture facilitates band and channel flexibility with in-field upgradability.

At the rear of the DSPbR sub rack frame are 10 slot apertures numbered sequentially from the left.

SIDE A

SIDE B

DSP

Ref GEN

Power

Input

Slot 1 Slot 9 Slot 10Slot 6Slot 4Slot 3 Slot 7 Slot 8Slot 5Slot 2

View from rear of DSPbR

Figure 12 – Slot Allocation Architecture

Figure 11 – CXXX-8. 8-Ch Internal Combiner Filter Unit.

Summary of content (5 pages)

PAGE 1
DSPbR Series – User’s Manual Figure 11 – CXXX-8. 8-Ch Internal Combiner Filter Unit. 3.4.10 TLM - Through Line Module Where external combining is required, which would typically be in the output channels of the downlink, and sufficient band pass filtering is provided within an optional external combiner, then a TLM can be bolted to the output of the RFBE instead of the BPFM. The form dimensions and connector arrangement of the TLM is the same as the BPFM.
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DSPbR Series – User’s Manual Slot allocation architecture; Slots 1-6 allocated to RFBE’s only. Slots 9 allocated to RFFE only. Slots 7 & 8 allocated to either RFFE’s or RFBE’s. Slot 10 allocated to a DSP module. Typically slots 1-4 or 5-8 are used for an 8-Ch Internal combiner filter unit, however the combiner unit can fit across any 4 continuous RFBE slot block. RFBE modules can be configured such that side “A” is an uplink channel and side “B” is a downlink channel.
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DSPbR Series – User’s Manual Should this style of combining not be suitable for an application, external combining is recommended. When internal combining is not required, each RFBE module will be bolted to a corresponding BPFM, where the output N female connectors for both boards are presented at the rear of the sub rack. 3.
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DSPbR Series – User’s Manual 4. Installation 4.1 Unpacking The DSPbR is heavy and considered a two-man lift. The 19” sub rack frame will have been packed into a robust cardboard box container. All modules ordered with the initial order will have been fitted and fastened into the appropriate slots within the sub rack frame.
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DSPbR Series – User’s Manual Figure 13 – DSPbR Dimensions Front View Figure 14 – DSPbR Dimensions Rear View Document Number 00000.