903-0628-00 Rev. 1
Model 903-HD User's Guide – FMB-X-2.5
28 HP –X BACKPLANE (Focal P/N: 903-7213-00)
(Front View)
Pin 3 2 1
FAN HEADER
PIN 1 = +12 VDC
PIN 2 = TACH (NOT USED)
PIN 3 = +12 VDC RETURN
AC: EARTH + CHASSIS (J14)
[GREEN CABLE]
AC: NEUTRAL (J12)
[BLUE CABLE]
AC: LINE (J11)
[BROWN CABLE]
(Back View)
Summary of Contents for Focal 903
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