Cabletron Systems Spectrum EMM-E6 Betriebsanweisung PDF herunterladen (Seite 36)

APPENDIX A: BASIC FDDI NETWORKS

Page A-10 BRIM-F6 User’s Guide

Each physical ring connection requires:

• one PMD

• one PHY.

A SAS consists of:

• one SMT

• one MAC

• one PMD

• one PHY.

A DAS consists of:

• two PMDs

• two PHYs.

Figure A-7. Valid Station Conﬁgurations

PHY

PMD

Single Attached

Concentrator

Dual Attached

Concentrator

PHY-B

PMD-B

PHY-A

PMD-A

PMD-3

Primary

In

Secondary

Out

Primary

Out

Secondary

In

PHY-3

PMD-2

PHY-2

PMD-1

PHY-1

PMD-3

PHY-3

PMD-2

PHY-2

PMD-1

PHY-1

PHY

PMD

Single Attached

Station

Dual Attached

Station

PHY-B

PMD-B

PHY-A

PMD-A

MAC

SMT

SMT

MAC

SMT

MACMAC

SMT

MAC

MAC

Primary

In

Secondary

Out

Primary

Out

Secondary

In

In Out

In Out

BRIM-F Book Page 10 Monday, January 29, 1996 9:26 AM

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