Data bus:	32-bit PCI
Size:	Three-quarter length, full-height card
Hard drive supported:	Up to seven SCSI-2, SCSI-3 or Fast SCSI devices (PM3224 and PM3224-MAC) Up to fifteen Wide SCSI devices (PM3224W and PM3224W-MAC) Up to 45 Wide SCSI devices with expansion board upgrades
Floppy drives supported:	None

ADAPTER CONNECTIONS
Function	Location
3-pin connector - remote alarm	P4
4-pin connector - drive active LED	P6
Proprietary connector to SX4000 expansion module	P15A
Proprietary connector to SX4000 expansion module	P16A
50/68-pin SCSI bus 0 connector - internal	J10
50/68-pin SCSI bus 0 connector - external	J11
ECC error LED - red	LED2
Parity error LED - red	LED3
ECC enabled LED - green	LED4
LED - adapter busy	DS/1
LED - computer bus transfer to adapter	DS/2
LED - computer bus transfer from adapter	DS/3
LED - cache hit	DS/4
LED - disk read/ahead active	DS/5
LED - disk read	DS/6
LED - disk write	DS/7
LED - adapter reset	DS/8
LED - interrupt to computer pending	DS/9
LED - DRQ to computer asserted	DS/10
Note: 50-pin external ports are on the PM3224 models. 68-pin ports are on the PM3224/W.

SX4000 EXPANSION MODULE CONNECTIONS
Function	Location
50-pin SCSI bus 1 connector - internal	P1
50-pin SCSI bus 2 connector - internal (see note)	P2
Proprietary connector from SX4000 module to adapter	P15B
Proprietary connector from SX4000 module to adapter	P16B
Note: There are four versions of the SX4000 expansion module: SX4000/1, SX4000W/1, SX4000/2 and SX4000W/2. The first two modules have a single SCSI connector (P1). This adds one bus, supporting seven additional devices on the PM3222 and an additional fifteen on the PM3222W. Expansion modules SX4000/2 and SX4000W/2 have two SCSI connectors (P1 and P2). This adds two buses, permitting the PM3222 to support an additional 14 devices, and the PM3222W to support an additional 30. Proprietary connectors P15B and P16B are on the reverse side of the expansion module.

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
1MB	(1) 256K x 36	None	None	None
1MB	None	(1) 256K x 36	None	None
1MB	None	None	(1) 256K x 36	None
1MB	None	None	None	(1) 256K x 36
2MB	(1) 256K x 36	(1) 256K x 36	None	None
2MB	None	(1) 256K x 36	(1) 256K x 36	None
2MB	None	None	(1) 256K x 36	(1) 256K x 36
3MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	None
3MB	None	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
3MB	(1) 256K x 36	None	(1) 256K x 36	(1) 256K x 36
3MB	(1) 256K x 36	(1) 256K x 36	None	(1) 256K x 36
4MB	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
4MB	(1) 1M x 36	None	None	None
4MB	None	(1) 1M x 36	None	None
4MB	None	None	(1) 1M x 36	None
4MB	None	None	None	(1) 1M x 36
8MB	(1) 1M x 36	(1) 1M x 36	None	None
8MB	None	(1) 1M x 36	(1) 1M x 36	None
8MB	None	None	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	None
12MB	None	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	None	(1) 1M x 36	(1) 1M x 36
12MB	(1) 1M x 36	(1) 1M x 36	None	(1) 1M x 36
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
16MB	(1) 4M x 36	None	None	None
16MB	None	(1) 4M x 36	None	None
16MB	None	None	(1) 4M x 36	None
16MB	None	None	None	(1) 4M x 36
32MB	(1) 4M x 36	(1) 4M x 36	None	None
32MB	None	(1) 4M x 36	(1) 4M x 36	None
32MB	None	None	(1) 4M x 36	(1) 4M x 36
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	None
48MB	None	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
48MB	(1) 4M x 36	None	(1) 4M x 36	(1) 4M x 36
48MB	(1) 4M x 36	(1) 4M x 36	None	(1) 4M x 36
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
Notes: Although not shown above, 1MB, 4MB and 16MB SIMMs can be combined and DPT ECC SIMMs can replace parity SIMMs of 4MB or 16MB. Single sided SIMMs are preferred, but low-profile double sided 2MB and 8MB increments are supported.