SYSTEM Electronics PC-188 Operator's Manual

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Table of contents

1. Bitbus specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Inspection and installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
4. Board configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1 Type of transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2 Node address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.4 Interface with the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.5 Message transfer mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.6 Terminal resistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.7 Additional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.7.1 Expansion slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.8 Default configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.9 Bitbus network connectors . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
. . . . . . . . . . . . . . . . . . . . . . . 5

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Summary of Contents for SYSTEM Electronics PC-188

  • Page 1 Table of contents 1. Bitbus specifications ........3 2.
  • Page 2 PC B - PC-188 B IBM-PC OARD ITBUS Revisions Pages Rev. 1.0 Compilation Rev. 1.1 Alteration Rev. 1.2 Alteration Table 4.4.1 This product meets the EMC requirements of EEC directive 89/336. SYSTEM SPA (Electronics Div.) reserves the right to make changes to the specifications at any time without giving prior notice.
  • Page 3 Figura 1.4 Connection for self-clocked without repeaters. as distance and number of network nodes are concerned. Due to these drawbacks, the PC-188 board uses only The correct layout of the various modes is shown in the self-clocked mode.
  • Page 4 2. Main board features 3. Inspection and installation The PC-188 is an expansion board for IBM/AT or IBM/ XT PCs and compatibles. The board is used to interface the PC with the Bitbus network. After receiving the PC-188 board, make sure it has not been damaged in any way during shipment.
  • Page 5 Tabella 4.3.2 Tint Rint 4.4 Interface with the PC The base address where the PC-188 board is located Bits should be selected by the user with jumpers JF0-JF6. It bit0 can range from 000H to 3F8H with 8 byte blocks. The...
  • Page 6 4.6 Terminal resistor The interface with the PC uses a transmission protocol based on: If the PC-188 board is installed at the ends of the Bitbus a data byte network, the terminal resistors have to be placed on a command byte...
  • Page 7 XP2, and RS232 interface is always available. Connect IRQ4 to TINT (1-2) or RTINT (2-3) The latter may be used by sending the SYSTEM Electronics Connect IRQ5 to TINT (1-2) or RTINT (2-3) commands defined (Open, Send, Receive, Close) to task Connect IRQ6 to TINT (1-2) or RTINT (2-3) GBS (ex RAC).

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