CPU
B132L: PA-7300LC 132 MHz with 64/64 KB int. L1 (+ 1 MB ext. L2)
B132L+: PA-7300LC 132 MHz with 64/64 KB int. L1 (+ 1 MB ext. L2)
B160L: PA-7300LC 160 MHz with 64/64 KB int. L1 (+ 1 MB ext. L2)
B180L+: PA-7300LC 180 MHz with 64/64 KB int. L1 (+ 1 MB ext. L2)
The external L2 cache SRAM is optional and is installed in two DIMM slots below the CPU socket. The modules must be of equal size. Usually, these systems come with two 512 KB modules, totalling in 1 MB L2.
Chipset
LASI ASIC, which features:
NCR 53C710 8-bit single-ended SCSI-2
Intel 82596CA 10 Mbit Ethernet controller
WD 16C522 compatible parallel
Harmony CD/DAT quality 16-bit stereo audio
NS 16550A compatible serial
Wax chip
EISA bus converter (GSC-to-EISA)
Second RS232 serial
Dino GSC-to-PCI bridge
Phantom PseudoBC GSC+ port
Visualize-EG (Graffiti) graphics
Intel 82503 Ethernet transceiver, media auto-selection
CS4215 or AD1849 programmable CODECs
WD37C65C Floppy controller
B132L, B160L: NCR 53C720 16-bit Fast-Wide high-voltage differential (HVD) SCSI-2
B132L+, B180L+: Symbios Logic 53C875 16-bit Ultra-Wide SCSI-2 controller
B132L+, B180L+: DEC (Tulip) Fast-Ethernet controller
Buses
GSC general system-level I/O bus
B132L (both): 33 MHz 132 MB/s
B160L: 40 MHz 160 MB/s
B180L+: 36 MHz 144 MB/s
EISA additional expansion I/O bus
PC high-performance device I/O bus
SCSI-2 Fast-Narrow single-ended bus
B132L, B160L: SCSI-2 Fast-Wide high-voltage differential main storage I/O bus
B132L+, B180L+: SCSI-2 Ultra-Wide single-ended main storage I/O bus
Memory
72-pin ECC SIMMs, 60ns or faster
Takes 16-256 MB modules (latest firmware-rev needed)
Six slots
32 MB (2×16) minimum, 1.5 GB (6×256) maximum
Expansion
B132L, B160L:
One slot for either a GSC (EISA formfactor) or PCI 32-bit/33 MHz, 3.3 V card
One slot for either a GSC (EISA formfactor), PCI 32-bit/33 MHz, 3.3 V or EISA card
B132L+, B180L+:
One slot for either a GSC (EISA formfactor) or PCI 32-bit/33 MHz, 5 V card
One slot for either a GSC (EISA formfactor), PCI 32-bit/33 MHz, 5 V or EISA card
I/O slot layout (from top to bottom):
PC or GSC
PC or EISA or GSC
Drives
One tray for a 68-pin half-height 3.5″ SCSI hard drive, either Fast-Wide high-voltage differential (B132L, B160L) or Ultra-Wide SE (+-models)
One tray for a 3.5″ Floppy drive
One tray for a 50-pin half-heigth 5.25″ Fast-Narrow 50-pin SE SCSI drive, external accessible, can also accomodate a hard drive.
External connectors
50-pin HD SCSI-2 Fast-Narrow single-ended
B132L, B160L: 68-pin HD SCSI-2 Fast-Wide high-voltage differential
B132L+, B180L+: 68-pin HD SCSI-3 Ultra-Wide single-ended
Two DB9 male RS232C serial
DB25 female parallel
B132L, B160L: TP/RJ45 10 Mbit Ethernet
B132L+, B180L+: TP/RJ45 10/100 Mbit Ethernet
15-pin AUI 10 Mbit Ethernet
EVC graphics port1
Two PS/2 connectors for keyboard & mouse
Four phone jacks (microphone, headphones, line-in and line-out)
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