Nortel Networks Installing Media Dependent Adapters manual Shows the 450-2M3 MDA and 450-2S3 MDA

Both ports can be active at the same time. In the event of a port failure, traffic destined for the failed port can be set to automatically route to the remaining operational port (see “ATM Configuration Menu” in your switch’s User Guide).

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.

Figure 9 shows the 450-2M3 MDA and 450-2S3 MDA.

450-2M3 MDA	1	2
(multimode)

A2A1

Tx Rx Tx Rx

A2 A1

Rx

Tx

450-2M3 MDA

3
450-2S3 MDA	1	2
(single mode)

A2A1

Tx Rx Tx Rx

A2 A1

Rx

Tx

450-2S3 MDA

3

BS45076A

Figure 9. 450-2M3 and 450-2S3 MDA Front Panels

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