Mackie Digital 8-Bus Service Manual page 22

EFFECTS CARDS
There are four slots available on the backplane board for Effects cards. They can plug into the
backplane connectors J51, J16, J14 and J17. The backplane connectors J21 and J24 transmit and receive
data to and from the DSP board.In most cases, the digital signals have the same name on the backplane
as appear on the DSP board, but there are a few exceptions, shown in the right hand column of the tables
below.
FX CARD TO
BACKPLANE
EFFECTS
CONNECTOR
CARD
AND PIN #
FX1 J51-5,58
FX1 J51-10,53
FX2 J16-5,58
FX2 J16-10,53
FX3 J14-5,58
FX3 J14-10,53
FX4 J17-5,58
FX4 J17-10,53
FX CARD TO
BACKPLANE
EFFECTS CONNECTOR
CARD AND PIN #
FX1 J51-11,52
FX1 J51-12,51
FX2 J16-11,52
FX2 J16-12,51
FX3 J14-11,52
FX3 J14-12,51
FX4 J17-11,52
FX4 J17-12,51
22
DSP SIGNAL FLOW
WHAT THE SIGNAL BACKPLANE
IS CALLED ON TO DSP BOARD
THE BACKPLANE CONNECTOR
AND PIN NO.
DT1_U2 J21-13
DT1_U1 J24-1
DT1_U4 J21-15
DT_3 J24-5
DT1_U6 J21-17
DT_5 J24-11
DT1_U8 J21-19
DT_7 J24-17
BACKPLANE
WHAT THE SIGNAL
TO DSP BOARD
IS CALLED ON
CONNECTOR
THE BACKPLANE
AND PIN NO.
DR1_U1 J24-23
DR1_U2 J24-25
DR1_U3 J24-7
DR1_U4 J24-9
DR1_U5 J24-13
DR1_U6 J24-15
DR1_U7 J24-19
DR1_U8 J24-21
WHAT THE SIGNAL
IS CALLED ON
THE DSP BOARD
These are the signals
SAME
transmitted from the DSP
SAME
board to the effects cards.
SAME
DT1_3
SAME
DT1_5
SAME
DT1_7
WHAT THE SIGNAL
IS CALLED ON
THE DSP BOARD
These are the signals
SAME
transmitted from the
effects cards to the DSP
SAME
board.
SAME
SAME
SAME
SAME
SAME
SAME