User`s manual

20 PCA-6154/6154L User's Manual
2.2 VGA Display Connector (CN7)
The PCA-6154/6154L provides a VGA controller for a high resolu-
tion VGA interface. The PCA-6154/6154L's CN7 is a DB-15 connec-
tor for VGA monitor input. Pin assignments for the CRT display are
detailed in Appendix D. Share memory architecture supports 0.5 MB,
1 MB, 1.5 MB, 2 MB, 2.5 MB, 3 MB, 3.5 MB and 4 MB system
memory. The memory is configured in the system BIOS setup.
2.3 Floppy Drive Connector (CN2)
You can attach up to two floppy disk drives to the PCA-6154/6154L’s
on-board controller. You can use any combination of 5.25"
(360 KB/1.2 MB) and/or 3.5" (720 KB/1.44/2.88 MB) drives.
The card comes with a 34-pin daisy-chain drive connector cable. On
one end of the cable is a 34-pin flat-cable connector. On the other end
are two sets of floppy disk drive connectors. Each set consists of a 34-
pin flat-cable connector (usually used for 3.5" drives) and a printed-
circuit-board connector (usually used for 5.25" drives). You can use
only one connector in each set. The set on the end (after the twist in
the cable) connects to the A: floppy. The set in the middle connects to
the B: floppy.
2.4 Parallel Port Connector (CN3)
The parallel port is normally used to connect the CPU card to a
printer. The PCA-6154/6154L includes an on-board parallel port,
accessed through a 26-pin flat-cable connector, CN3. The card comes
with an adapter cable which lets you use a traditional DB-25 connec-
tor. The cable has a 26-pin connector on one end and a DB-25
connector on the other, mounted on a retaining bracket. The bracket
installs at the end of an empty slot in your chassis, giving you access
to the connector.
The parallel port is designated as LPT1 and can be disabled or
changed to LPT2 or LPT3 in the system BIOS setup.