IBA ibaLink-MBII-io Multibus Il Interface Board

Introduction

Where to Use This Board

The board ibaLink-MBII-io is an interface board in Eurocard size (double) for Multibus II

systems.

The board is to be used for data transmission from a Multibus II system to an ibaPDA or

ibaLogic system or for realization of a so called frame-to-frame connection.

The board provides two pairs of fiber optical senders/receivers on the front panel.

Each sender/receiver pair can transmit up to 64 analog and 64 digital signals in each di

rection.

The ibaLink-MBII-io board uses an assigned memory range in the backplane memory of

the Multibus II system. The data to be measured should be written into this memory

range by the supporting system, then converted by the board and transmitted to an iba

system via the standard fiber optical interface with 3.3 Mbit/s.

The fiber optical receiver is used for data sent by an ibaLogic system to the Multibus II

system or for receiving data coming from other iba devices and systems (ibaPADU,

ibaLink-SM-64 / -128 etc.

A cross-over point-to-point connection between an ibaLink-MBII-io card and other iba

components with fiber optical sender/receiver may be sufficient to exchange data without

any software application from iba.

Multibus II

From Idea to Standard

In the early 1980s some manufacturers build a consortium together with Intel in order to

improve and standardize a bus architecture "Multibus II" which is based on Multibus I.

The new system should offer the following key features:

• Eurocard board sizes and DIN-connectors

• self-test capability

• software jumpers for configuration

• fast 32-bit bus

• functional partitioning (using LAN concepts)

• reliability

• inter-operability

These properties were defined 1987 in the standard IEEE 1296 as Multibus II-standard.

Definition

The standard IEEE 1296 describes the function of Multibus II as follows (abstract):

MULTIBUS II is parallel system bus (PSB). It provides a high-performance backplane bus

intended for use in multiple processor systems, with synchronous, 32-bit multiplexed ad

dress/data, with error detection, using a 10 MHz bus clock. The bus performance is

approx. 32 to 40 MByte/s. Current systems offer up to 80 MByte/s.

Mechanical Arrangement and Board Sizes

Multibus II boards are available in two Eurocard board sizes:

• Single: height 3 U1) (5.25 " or 133.35 mm), depth 8.66 " or 220 mm

• Double: height 6 U (10.5 " or 266.70 mm), depth 8.66 " or 220 mm

The double size is most spread. The ibaLink-MBII-io has the double size too.

The backplane connectors are designed in compliance with DIN 41612.

Scope of Delivery

The following items are part of the delivery:

• ibaLink-MBII-io board

• ibaLink-MBII-io manual

System Requirements

Hardware

Control system

Multibus II-rack (height 6U) with at least one empty slot (4 TE)

Accessories

Software

Accessories

For measurement or analysis of the received data beside the board:

IBM-compatible PC with one of the following fiber optical interface boards:

ibaFOB-io-S resp.

ibaFOB-4i-S + ibaFOB-4o or

ibaFOB-4i-X + ibaFOB-4o-X

In order to realize a frame-to-frame connection a second ibaLink-MBII-io card or another

iba component such as ibaLink-SM-64 (MMC frames) or ibaLink-SM-128 (VMEbus) is re

quired.