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KX-NCP1290CJ (serv.man2) - Panasonic PBX Service Manual (repair manual). Page 10

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10
KX-NCP1290CJ
3.2.4.
EC Bus Interface
3.2.4.1.
Dual Port RAM (DPRAM) Communication
This card transmits and receives data between itself and MPR (EC bus) in a dual port RAM communication basically.
Shows the diagrammic illustration.
DPRAM Communication diagrammic illustration
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