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LocalTalk PC Card

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Localtalkpc.jpg

LocalTalk PC Card, a half-size card for the PC expansion bus, allows users of MS-DOS comput­ers to share the unique benefits of the AppleTalk Network Sys­tem - including the ability to print professional-quality documents on networked Apple LaserWriter printers. The LocalTalk PC Card also provides the foundation for other network services, such as electronic mail, print service, and file and peripherals sharing. For example, with the addition of AppleShare PC software, MS-DOS users can share information with Macintosh users on the network through an AppleShare file server, and take full advantage of the power of the LaserWriter printer.

Features

  • LaserWriter printing for PC-compatible computers using PC LaserWriter program
  • Attaches to LocalTalk Cabling System
  • Information sharing between Macintosh and MS-DOS systems

Specifications

AppleTalk protocol support:

  • LAP, DDP, ATP, NBP, ZIP, EP, PAP, RTMP, ASP

Driver interface:

  • Accessed through software interrupt with parameter block

Processor:

  • 65C02; 1.8-megahertz clock speed

Memory:

  • 8 kilobytes RAM, 8 kilobytes ROM

AppleTalk communications controller:

  • Zilog 8530 SCC

Interfaces:

  • RS-422 serial port (230.4-kilobaud data transfer rate); DMA interface to host PC

Configuration:

  • Selectable Interrupt Request (IRQ), DMA Request and Ac­knowledge (DRQ and DACK), and I/O Address; default con­figuration corresponding to PC COM2 device

Size:

  • PC half-size card (5 in. long by 4.5 in. high)

See Also