Installation Manual

Dual-Attach Station (DAS)
This configuration gives you optional use of the optical bypass switch
(page 1-19) to prevent ring wrap if an FDDI circuit becomes non-opera-
tional.
1. Attach port ‘‘A’’ of the router to port ‘‘B’’ of an adjacent DAS.
2. Attach port ‘‘B’’ of the router to port ‘‘A’’ of another DAS.
.
....
.
Adjacent DAS
(router with FDDI)
HP router with
FDDI port
Adajacent DAS
(router with FDDI)
AB
AB
AB
Figure D-1. Example of Dual-Attach Station Connections
FDDI Cable
Attachments
D
FDDI Cable Attachment Configurations
Dual-Attach Station (DAS)
D-3