Garmin 011-01257-20 Manuale di installazione - Pagina 27
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4
SYSTEM INTERCONNECTS
4.1
Connector Description
The GMA 1347D has two 78-pin connectors located at the rear of the unit designated J3471 and J3472.
J3471 and J3472 are clearly marked on the back of the rack. J3471 and J3472 pins are configured as
shown in the following illustration:
Figure 4-1. Rear Connectors, J3471 and J3472 Viewed From Back of Unit
4.2
Connectors J3471 and J3472
J3471 and J3472 pin assignments are given in Tables 4-1 and 4-2.
Following the pin assignment table, additional tables group pin connections by function.
An asterisk (*) following a signal name denotes that the signal is an Active Low. Active Low inputs
require a ground to activate. Active Low outputs sink current to ground when active.
GMA 1347D Installation Manual
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Revision C