E.F. Johnson Company MULTI-NET II Spezifikationen PDF herunterladen (Seite 23)

ARCHITECTURE

3-3

3.3.2 CONTROL BUS

The following are descriptions of control buses.

Refer to Figure 3-3.

1. The IDB Idle/Collision line is a three level line that

indicates if the line is idle, busy or collision

occurred for the IDB communication process. This

provides for high speed CSMA of the IDB.

Figure 3-3 CONTROL BUSES

CIMs CCMs

NETWORK

INTERFACE

MODULE

NetNIM

CONVENTIONAL

CHANNEL

MODULE

INTERFACE

CHANNEL

MODULE

INTRA-TERMINAL DATA BUS (IDB) IDLE / COLLISION

CHANNEL STATUS BUS (CSB) IDLE / COLLISION

DISPATCH

MODULE

CHANNEL

DCMs

TELEPHONE

MODULE

INTERFACE

TIMs

NETWORK

SYSTEM

MODULE

SNMs

WIDE

MODULE

AREA

WA M s

LOGGING

MODULE

ENCODER

LEMs

DISPATCH

MODULE

INTERFACE

DIMs

2. The CSB Idle/Collision line is a three level line that

indicates if the line is idle, busy or collision

occurred for the CSB communication process. This

provides high speed CSMA of the CSB.

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