Cost-effective ways to increase access: Multiple Access Units
Multistation Access Unit (MAU)
- Passive Ring Concentrator
- Includes room for 8 connected units
- Forms a ring segment
- Passes signal back to ring
- Ring Out/Ring In (can be connected in series)
Controlled Access Unit (CAU)
- Active Ring Concentrator
- Contains logic for control functions
- Passes signal back to ring
- Ring Out/Ring In (can be connected in series)
- Acts as Primary Input, Primary Output, and Secondary Adapter