Nortel BayStack 450-24T Using Manual page 329

There are two ATM MDA models (Figure C-5):
450-2M3 MDA
(multimode)
3
450-2S3 MDA
(single mode)
3
Figure C-5.
Note: The BayStack 450-2M3/2S3 MDA does not support the Business Policy
Switch. Any BayStack 450 Switches that are configured with BayStack
450-2M3/2S3 MDAs will not operate in a mixed stack configuration that
includes one or more Business Policy Switches.
•
•
Both ports can be active at the same time. If a port fails, traffic destined for the
failed port can be set to automatically route to the remaining operational port (see
"ATM Configuration Menu" on page 3-89).
Both models use longwave 1300 nm fiber optic connectors to connect devices
over single mode (10 km/6.2 mi) or multimode (2 km/1.2 mi) fiber optic cable.
Table C-5 describes the 450-2M3 MDA and 450-2S3 MDA front-panel
components.
309978-D Rev 01
A2 A1
Tx Rx Tx
A2 A1
Tx Rx Tx
ATM MDA Front Panels
The 450-2M3 MDA uses two SC duplex fiber optic connectors for
connections over 62.5/125-micron multimode fiber optic cable.
The 450-2S3 MDA uses two SC duplex fiber optic connectors for connections
over 8.5/125-micron single-mode fiber optic cable.
1 2
A2 A1
Rx
Tx
Rx
450-2M3 MDA
1 2
A2 A1
Rx
Tx
Rx
450-2S3 MDA
BS45076A
Media Dependent Adapters
C-13