The PDMM comprises of three printed circuit boards (PCB"Printed Circuit Board" A PCB is used to mechanically support and electrically connect electronic components using conductive pathways, tracks or signal traces etched from copper sheets laminated onto a non-conductive substrate) while the PCMM comprises of one.
Figure 2-13: PDMM and PCMM card
Please note that any reference to PDMM or PCMM refers to both the 800MHz and the 1.2GHz variants, unless otherwise noted.
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