HP Series 200 Installation Manual page 26

Installation
Phase 3: Prepare the Router Hardware
Connecting an FDDI Ring Directly to the Router: If you are not
going to use a bypass switch, simply insert the modular plugs from your
FDDI ring into the "MIC A" and "MIC B" FDDI ports on the HP Router
BR.
MIC A MIC B
To port B of adjacent
DAS station
To port A of adjacent
DAS station
Figure 1-16. Connecting FDDI Without a Bypass Switch
1-18