Garmin GMA 347, Руководство по установке

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GMA 347 Installation Manual Page 4-1
190-00325-01 Revision A
4 SYSTEM INTERCONNECTS
NOTE
When installations that have a Garmin GMA 340 audio panel are being
upgraded to a GMA 347, refer to figure C
-
5 in appendix C for a pin-to-
pin comparison of the two units.
4.1 Connector Description
The GMA 347 has two 78-pin connectors located at the rear of the unit designated P3471 and P3472.
P3471 and P3472 are clearly marked on the back of the rack. P3471 and P3472 pins are configured as
shown in the following illustration:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
1 2 3 4 5 6 7 8 9 10 1112 13 1415 1617 18 1920
2122 2324 2526 2728 2930 3132 3334 3536 3738 39
40 4142 43 4445 4647 4849 50 5152 5354 5556 5758 59
60 6162 6364 6566 6768 6970 7172 7374 7576 7778
Figure 4-1. Backshell Rear Connector Plate
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30
31 32 33 34 35 36 37 38 39
40
41 42
43 44 45 46 47 48 49 50 51 52 53 54 55 56
57
58 59
60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78
Figure 4-2. 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, requiring a ground to
activate.