User's Manual

MM-015039-001, Rev. H
20
4.1.1 Multi-Channel Base Station Shelf
The MASTR V Multi-channel Base Station shelf model EA-555002-001 is a 14-slot, 5-RU, shelf
assembly. The shelf provides a modular environment supporting almost any combination of MASTR V
modules.
Assembled to the rear of the shelf is a unified backplane assembly. The backplane interfaces all data,
frequency reference, and DC power connections from the 14 module slots, to the two (2) horizontally
positioned Ethernet switch modules.
Connectors J30 and J31 are DC inputs for the backplane. Two (2) connector assemblies are provided for
each module slot; a 3-pin connector for DC power (J101 through J114) and a 95-pin connector for
data/small signals (J1 through J14). Each E-Switch module slot uses a 120-pin signal connector having
40 balanced signal pairs, and each pair having an individual shield for optimal signal performance.
Additionally, two (2) guide pins are used in each module slot, one at each end of every connector row.
Connectors J21 through J24 provide data and control signaling to the HPA modules.
Figure 4-2: 14-Slot Base Station Shelf