Optical Bypass Switch; Cabling For Installing An Optical Bypass Switch - 3Com 3C780 - LinkBuilder FDDI Base Unit User Manual

To detect the presence of an optical bypass switch on your system, enter the
show obs command. To install an optical bypass switch with the configuration
shown in Figure 2-11, follow these steps:
1. Plug the A and B Media Interface Connectors (MIC connectors) from
a network device or another hub into the B and A receptacles on the

optical bypass switch.

The device's A connector must be placed in the B receptacle and the B
connector in the A receptacle.
2. Plug the A and B MIC connectors of the optical bypass switch into the
A and B ports on the FDDI hub (A to A and B to B).
6-Pin mini-DIN
B
DAS
A
B
Figure 2-11. Cabling for Installing an Optical Bypass Switch
DAC
B A
A B
Optical bypass switch
Network devices
DAC
Installing the Hub
2-27
FDDI hub
A
DAS
B
A