© VITESSE SEMICONDUCTOR CORPORATION

Page 3

8/31/98

741 Calle Plano, Camarillo, CA 93012 • 805/388-3700 • FAX: 805/987-5896

VITESSE

SEMICONDUCTOR CORPORATION

Data Sheet

VSC7121

Quad Port Bypass Circuit for 1.0625 Gbit/sec

Fibre Channel Arbitrated Loop Disk Arrays

G52110-0, Rev. 4.1

Figure 2: Disk Array Application

RX

TX

E_STORE

LRC Interlock

FC-AL DISK DRIVE

RX

TX

E_STORE

LRC Interlock

FC-AL DISK DRIVE

RX

TX

E_STORE

LRC Interlock

FC-AL DISK DRIVE

Pulldown for Bypass

in Absense of Disk Drive

7120

7120

Optics

or

Copper

JBOD

normal

normal

normal

bypass

Dual SC

or

DB-9

7120

7120