User`s manual

Chapter 2 Connecting 19
2.13 ATX Feature Connector (CN7)
When the PCA-6740 is used as a standalone card, the main power
connector (CN7) is used. If the PCA-6740 is used with a passive
backplane, the main power connector (CN7) should not be connected.
This is because the card will be powered from the backplane.
Figure 2-4: ATX adaptor cable
The ATX adapter cable (optional) is used to connect the PCA-6740 to
the ATX power supply. The ATX adapter cable has different connec-
tors at both ends. On one end is the ATX 20-pin (female type) which
connects to the (male) ATX power supply source. The other end has a
3-pin connector (female type) which connects to the ATX feature
connector (CN7) on the board itself. This end also has the 6-pin main
power connector (P8) and a 6-pin connector (P9) which is used when
the board is mounted on a passive backplane.
P9
P8
P9
P8
(P8) 6-pin in backplane
(P9) 6-pin in backplane
ATX power supply source
20-pin female connector
To ATX feature
connector (CN7)
2.14 VGA display connector (CN9)
The PCA-6740 provides a VGA controller for a high resolution VGA
interface. The PCA-6740 CN9 is a DB-15 connector for VGA
monitor input. Pin assignments for the CRT display are detailed in
Appendix A.