Apple Token Ring Products Service Manual

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Apple Token Ring Products Service Manual

K Service Source

Token Ring Products

K Service Source

Specifications

Token Ring Products

Specifications

Token Ring 4/16 NB Card - 1

 

 

 

Interface

Processor

Memory

Data Transfer Speed

Power Requirements

External Connector

Token Ring 4/16 NB Card

NuBus (bus master)

Motorola 68000 microprocessor operating at 10 MHz 512K of RAM, expandable to 2.5 MB

4 or 16 Mbps

1.5 A at 5 V

DE-9 (IBM Type 1 cable)

External adapters for Type 3 cable from third party

 

Specifications

Token Ring 4/16 NB Card - 2

 

 

 

 

Chip Set

IBM Token Ring

Application

Programming

Interface

LLC

Routing

Token Ring Address

Timers

AppleTalk, Apple 3270 API, APPC verb interface

Type 1 and Type 2

Supports IBM source routing

Burned-in or locally administered

Response (T1), Acknowledge (T2), and Inactivity (Ti)

 

Specifications

Token Ring 4/16 NB Card - 3

 

 

 

 

Other

Card settings can be password-protected

Cable

 

 

Shielded twistedpair:

Unshielded twistedpair:

Maximum distance from MAU to device (lobe length) = 300 meters

Maximum distance between two MAUs (trunk length) = 200 meters

Maximum devices per ring = 260

Maximum distance from MAU to device (lobe length) = 100 meters

Maximum distance between two MAUs (trunk length) = 120 meters

Maximum devices per ring = 72

Approvals

FCC class A; VDE

 

 

 

 

 

 

 

Specifications

TokenTalk NB Card - 4

 

 

 

Interface

Processor

Memory

Data Transfer Speed

Application

Programming

Interface

TokenTalk NB Card

NuBus (bus master)

Motorola 68000 microprocessor operating at 10 MHz 512K of RAM

4 Mbps

AppleTalk, Apple 3270 API, APPC verb interface

 

Specifications

TokenTalk NB Card - 5

 

 

 

 

Power Dissipation

15 W

External Connector

DE-9 (IBM Type 1 cable)

 

 

External adapters for Type 3 cable from third party

 

 

 

 

 

 

 

 

 

 

 

 

Specifications

Token Ring NB/c Card - 6

 

 

 

Token Ring NB/c Card

Interface

Memory

ROM

Data Transfer Speed

Power Requirements

NuBus

64K SRAM, nonexpandable

32K ROM

4 or 16 Mbps, jumper selectable

1.5 A at 5 V

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