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Apple EtherTalk NB Card
From Higher Intellect Vintage Wiki
The Apple EtherTalk NB Card provides direct connectivity to 802.3 Ethernet networks for the Macintosh II family of personal computers. This easy-to-install card lets you use the computer with a variety of networking protocols, including the AppleTalk network system and TCP/IP.
Features
- Compliance with IEEE 802.3 standards
- Includes EtherTalk software (AppleTalk Phase 2 protocol support for users of the Macintosh operating system)
- A/UX local area networking support
Specifications
Connectors:
- BNC connector for thin Ethernet (RG-58) cabling
- AUI (15-pin D-style) connector for connecting external transceivers
Transmit/Receive data rate:
- 10-megabit-per-second maximum data rate
- On-board thin Ethernet transceiver (jumper-selectable)
Packet buffering:
- 64 kilobytes of dual-ported local RAM for packet buffering
- 32 kilobytes of ROM
Power dissipation:
- +5 volts: 6.5 watts maximum
- + 12 volts: 3.6 watts maximum