Page 2.3
• Alternator interface board
name type of connector connection
CN1 AMP MATE-N-LOCK 15-pin F. to CPU board
CN2 AMP MATE-N-LOCK 6-pin F. to alternator
CN3 AMP MODU I 4-pin M. to power supply
CN4 AMP MODU I 8-pin M. to serial ports
2.5.2. WIRING
BK-1: Internal connecting cable
CPU Board – alternator interface board
CPU board
CN1
Signal Color Alternator
interface board
CN1
1 +12 Vdc White 1
2 +5 Vdc Gray 1 2
3 ground Black 3
4 ground Orange 4
5 Alternator RPM X 6 Pink 5
6 PFM alternator resistance Red 6
7 - - 7
8 Loop Blue 1 8
9 CTS Blue 2 9
10 Master – Slave selection Purple 1 10
11 Y – bus Purple 2 11
12 Z – bus Brown 1 12
13 -12 Vdc Yellow-
Green
13
14 A – bus Gray 2 14
15 B – bus Brown 2 15
On some machines, the signal designated +12 Vdc in the above table is actually 10.5 Vdc.
BK-3A: High voltage power supply
Power input socket – ON-OFF Switch
Power entry Signal Color ON-OFF Switch
Red Faston Live Blue Red Faston
Red Faston Neutral Black Red Faston
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